Silverado P0300 Misfire Code

ERROR CODE P0300 CHEVY. they have a call in to DODGE Tech Line and they are supposed to get back w/ dealer in the morning. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 2. Mainly the 5. Before i thought it was related to a code i was getting for o2 sensor. I have replaced the spark plugs, and wires. The 2009 Chevrolet Silverado has 1 problems reported for engine misfire, bucks, shuts off. 2003 GMC Sierra 2500 HD. One thing I see quite a bit these days, is vehicles coming into the shop running badly, misfiring, check engine light code P0300 and getting very poor fuel economy. My check engine light has been on for a while and I guess I've kind of been ignoring it. My light came on 2x times last week then went off. one gm tech advised using techron fuel injector cleaner but the chevy site says to use only gm upper engine and injector cleaner. 2,1,8 and 4 all fire in a row. 2) p0300 multi fisfire cylinder 1. You may have to register before you can post: click the register link above to proceed. Always on cold start up. 3 getting the po300 random misfire code. I have replaced the spark plug wires twice, switched out the spark plugs with the five year AZ Delco plugs, cleaned the throttle body, cleaned the mass air flow sensor, checked the air filter and housing for obstructions, checked the PCV valve, checked for vacuum leaks. The engine idles a little rough and the cel is on. If the last digit is a number other than zero, it corresponds to the cylinder number that is misfiring. Cyl 2 and 6 intermittent misfire, and PCM had a general misfire code. I've got a 99 gmc sierra with the 5. Engine size = 350 5. This is one of the more serious diagnostic codes a vehicle computer can set. they found it said ignition failure "P0300" i had a look around and couldnt find any proper info. I've also had to replace an O2 sensor when truck read P0300, but it was bank 1 sensor 2. I replaced the Camshaft position sensor and the P0340 code went away, but the P0300 code remained and the truck still ran like crap. Might be worth checking the wires. A P0302 code, for example, would tell you cylinder number two is misfiring. What Does Diagnosing the P0300 Code Entail? When your car displays a P0300 code, it means that you're experiencing a misfire. I took it for a drive and on highway speeds, the engine responds well. What is the severity of a P0300 code? Critical. That in turn can help you cure and stop a smoking diesel engine. Start by checking for intake leaks, intake gaskets are a common caused of multi-cylinder misfiring. FIXD explains symptoms, causes, and severity of code P0300. What Does Diagnosing the P0300 Code Entail? When your car displays a P0300 code, it means that you’re experiencing a misfire. my check engine light came on with the code P0300 random misfire recently after changing my front cam seals to stop a oil leak, in the process of course as everyone knows i had to take off the timing belt to get to the cam seals. 3L engines with AFM (active fuel management). Here is a list of things I P0300 misfire. Engine misfire codes are the most common to cause a check engine light on cars and trucks. ACNA Notice Board. The Engine Control Module (ECM) detects a misfire by using the crankshaft position (CKP) sensor to measure the acceleration of the crankshaft when a cylinder fires. Verify pressures are correct. Definition: Random/Multiple Cylinder Misfire Detected. One of the most common reasons for an engine misfire is a problem with the ignition system. The engine will run fine for 5 minutes then misfire for 20 minutes then run fine again for 2 minutes, then misfire again. This 2004 Honda Accord came in with the SES (or check engine) light on. Check engine light and P0300 misfire codes on Silverado Sierra Fix P0300 misfire code on Silverado Sierra. This truck idles fine. figured bad spark plug. vacuum gauges they are a great and cheap diagnostic tool, they can help pinpoint all sorts of problems. 0's and I've never seen it cause a lean condition. 2 Misfire Detected P0303 Cyl. 3L z-71 V-8 4wd 70000plus kms my problem is i got a code which read P0300- misfire. The engine idles a little rough and the cel is on. So I got a check engine light on my 03 silverado Took it to autozone and it read a P0300 which the guy told me was a random missfire that I could of been either wires spar plugs vacuum leak low fuel pressure etc. Ran fine for a month with no codes. P0300 misfire codehelp:(This is a discussion on P0300 misfire codehelp:(within the General Help forums, part of the LSx Technical Help Section category; Got a P0300 code, rough idle and ses light, changed plugs, wires and 02 Sensors, didn't help. I inspected the coils, and the connections looked pretty clean, although I scraped the connectors underneath them to make them as clean as possible, not much improvement. Chevrolet Code P0300: Random/Multiple Cylinder Misfire Detected. anyone else seeing this problem? had it to the dealer 2 times and they cant come up w/ a reason for it. Verify pressures are correct. 0 Vin U Misfire Author Sparky Posted on June 24, 2008 June 14, 2016 Categories 2004, Chevrolet, Find Answers, Misfires, P0300, Runs Poorly, Silverado 2500 HD Tags Chevrolet and GMC Trucks, P0300. I have replaced the spark plug wires twice, switched out the spark plugs with the five year AZ Delco plugs, cleaned the throttle body, cleaned the mass air flow sensor, checked the air filter and housing for obstructions, checked the PCV valve, checked for vacuum leaks. P0301 means misfire cylinder #1, p0302 cylinder #2 and so on. Occasional misfires may pass unnoticed, but a steady misfire is hard to miss. Sometimes a misfire may feel like a vibration. 3 liter 83000 mile replaced maf sensor o2 sensors before cat still getting p0101 and p0300 codes can anyone help me. Two months ago it threw a code for misfire cylinder 1. It has been two P0300 misfire codes. SOURCE: my 2000 chevy silverado has Hi. Gettin a P0300 code for Random Misfire Detected. are not [] acts like a lean condition caused by a egr but there is no [] thing i see is the cam retard is a -7 [] a ign module cause this?any help would be. Got it diagnosed and a code P0300 came up which is a multiple cylinder misfire but was told it can be due to many things so we have to rule out different things until. I took it in on 30 Dec and got it back this afternoon. 120k miles DSG I bought it cheap for it had this P0302 and the P0300. I would get an intermittent CEL which would produce a P0300 or P0308 code (random misfire or Cyl 8 misfire). It could be a bad coul. What Does Code P0300 Mean? OBD II fault code P0300 is a generic code that is defined as " Random/Multiple Cylinder Misfire Detected", and is set when the PCM (Powertrain Control Module) detects either randomly misfiring cylinders, or misfires on multiple cylinders. Code samples. Cyl 1, 5, 6 and 8 showed a misfire even though the engine ran smoothly. Time for a daily "What could cause this trouble code" thread: My car: 2006 300c 5. 3 l engine codes p0101 p0300 Post by richurbs » Sun Nov 23, 2008 6:29 pm i have a 02 chevy silverado 5. A P0302 code, for example, would tell you cylinder number two is misfiring. 2003 Chevy Silverado 1500 LS 4WD 5. Also, the stabilitrac light, traction off, service stabilizer messages pop on, possibly due to the p0300? we recently replaced the transmission. No codes, but we swapped with a known good spare and did a relearn, p0300 was gone. P0301, P0302, P0303, P0304, P0305 and P0306. I started experiencing a lower RPM misfire which was most prominent off of idle to 3k rpm. The car should be brought in for repair as soon as possible with the same day being ideal. Regarding a ticking noise or misfire on 2005-2014 GM V8 engines. Check for any signs of wear and heat damage in all of the components of Ignition System. You would normally start by checking your Chevy Silverado fuel trim with a scan tool. If the last digit is a number other than zero, it corresponds to the cylinder number that is misfiring. Code P0300 is simply a random/Multiple Cylinder Misfire. Chevy Silverado misfire Fix Chevy Silverado misfire. Random misfire P0300 code Discussion in '2013-14 Shelby GT500' started by crucianpilot, Dec 16, 2014. 2007 Silverado 2500HD Classic, 182,000 miles, 6. Start by checking for intake leaks, intake gaskets are common caused of multi-cylinder misfiring. The problem is with every thread I read, might even have multiple people with the problem, there is no conclusion or fix. No codes, but we swapped with a known good spare and did a relearn, p0300 was gone. 8 FWD 97k 2 Faults Found: 16684 - Shareware Version. ACNA Notice Board. It idles great and drives fine if I baby it but as soon as it gets any load on it it starts to miss. I read it and it was a P0300 Random/Multiple Misfire. 2003 Chevy Silverado 1500 LS 4WD 5. The misfire clears up and the car runs like normal above 2500 RPM or once the car starts making boost. 0L I've been reading for weeks on these humble forums about all the P0300 trouble codes. It seems to only be one cylinder, but I haven't verified this yet. Here we go. There could be a number of things that can cause the. If the last digit is a number other than zero, it corresponds to the cylinder number that is misfiring. Yesterday on the way to work my 2000 Chevrolet Silverado 1500 4WD with the 4. However, under certain conditions, the ECU is unable to isolate the misfire origin or it detects random misfires changing from one cylinder to another without a logic pattern. This Diagnostic Trouble Code (DTC P0300) is the Powertrain Control Module (PCM) way of telling us that it has found multiple misfires, but it can not identify which cylinders they are. If no leak are found the next step is to replace the spark plugs. Silverado & Fullsize Pick-ups - p0300 random misfire - I have a 2004 silverado 2500hd with the 6. P0300 Random Cylinder Misfire. But when the RPMs are <1000, I can feel the vibrations from a slight misfire, and the RPMs fluctuate. Unfortunately drove it the next day, ran good for a little bit then had the same problem and the car would not move, while stopped at a red light. I cleared the codes, but they returned within minutes of running the engine. If there were DTCs such as P0301 through P0310, that would identify a single cylinder that is the culprit and would narrow your focus of diagnostics. For example, if you have the P0300 code along with P0171 - System too lean, there is a good chance that the misfire is caused by the lean air/fuel mixture that initially triggered the code. b) The frequency of the engine speed within 440 - 6000 rpm (model with 2 sensors) and 440 - 4500 rpm (Models with 4 sensors). so i replaced all the plugs which where all black, i changed them @50000km before that. If the last digit is a number other than zero, it corresponds to the cylinder number that is misfiring. If you need to rely on a code section for any reason, you should contact the South Jordan City Recorder by either coming into city hall and requesting a copy of the code section(s) you are using, or calling the City Recorder at (801) 254. The P0300 code means that a cylinder (s) is misfiring or is randomly misfiring. checked egr valve, not bad. Im in the UK running FBO and Ecutek tune. I don't have the codes handy, but P0300 is random misfire and the rest are cylinder specific, right? It's interesting that the misfires are in order. one gm tech advised using techron fuel injector cleaner but the chevy site says to use only gm upper engine and injector cleaner. See here for a step-by-step guide on how to diagnose and fix Chevrolet check engine light code P0300. This condition is not permanent. Read the code and got the P0300 which I researched. It would run good cold but worse when warm or hot. If no leak is found the next step is to replace the spark plugs. Engine size = 350 5. Page 1 of 3: How to Troubleshoot a Misfire (GM 4. The second or third time it showed a misfire, the idle started to get worse. Most of the time a tune up will usually fix the issue. When diagnosing a P0300 code, it is important to record the freeze frame information and then duplicate the code setting conditions with a test drive. I have a 2003 Aurora that is throwing a P0300 random misfire. With and Without Misfire Codes. Pay close attention to the engine load, throttle position, RPM, and road speed because a P0300 (which is a specific misfire) can sometimes be difficult to detect. The deposits cause oxygen sensors to respond slowly to exhaust oxygen content, affecting fuel control and causing a misfire to be indicated at idle. NYC 2011 Electrical Code Administrative Provisions §27-3005 Jurisdiction, powers and duties of the commissioner. Some 2011-2013 F-150 vehicles built on or before 6/15/2013 and equipped with a 3. fault codes from P0000 to P0299 · Standard fault codes from P0300 to P0399 Chevrolet S10 (1995 - 2012) · Chevrolet Silverado Sierra (1999 - 2006). I have replaced the spark plug wires twice, switched out the spark plugs with the five year AZ Delco plugs, cleaned the throttle body, cleaned the mass air flow sensor, checked the air filter and housing for obstructions, checked the PCV valve, checked for vacuum leaks. Average cost if I have a mechanic do it? Average cost to have valves adjusted? So far after replacing the coil I now only get a misfire code on cylinder 3. With a code set for every cylinder plus a random misfire code P0300 I was pretty sure there would be …. I agree completely with Skippy. Silverado P0300 OBDII Code Symptoms. Chevrolet Code P0300: Random/Multiple Cylinder Misfire Detected. Doing so will display your browser's source code in a new window or at the bottom of the current window. Any ideas? FYI the vehicle had the right head replaced under warranty for the misfire recall issue a few years ago. I had posted in your previous post about the Cam and Crank sensors before you mentioned the misfire code. This is how to diagnose a code PO300 Random Misfire Code. Symptoms of a Misfire. This article will help you to understand some of the most common causes of misfires and misfire codes (P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308) on the GM 4. Pay close attention to the engine load, throttle position, RPM, and road speed because a P0300 (which is a specific misfire) can sometimes be difficult to detect. By monitoring variations in the crankshaft rotation speed for each cylinder, the PCM is able to detect individual misfire. Yesterday on the way to work my 2000 Chevrolet Silverado 1500 4WD with the 4. Learn to code by making apps and games on your iPhone or iPad. Can someone hwlp. A P0302 code, for example, would tell you cylinder number two is misfiring. It would run good cold but worse when warm or hot. P0300 Tech Notes The P0300 code means that a cylinder(s) is misfiring or is randomly misfiring. Gettin a P0300 code for Random Misfire Detected. b) The frequency of the engine speed within 440 - 6000 rpm (model with 2 sensors) and 440 - 4500 rpm (Models with 4 sensors). 3L z-71 V-8 4wd 70000plus kms my problem is i got a code which read P0300- misfire. Got it diagnosed and a code P0300 came up which is a multiple cylinder misfire but was told it can be due to many things so we have to rule out different things until. P0301 means misfire cylinder #1, p0302 cylinder #2 and so on. Performed chemical tune up for top end, swap ignition coils and injectors including tune up but bank 1 cylinders still showing code of misfire. Fuel trims and misfire count would be a big help if you have access to a scanner. I took it in on 30 Dec and got it back this afternoon. Check for any signs of wear and heat damage in all of the components of Ignition System. Regarding a ticking noise or misfire on 2005-2014 GM V8 engines. I replaced the Camshaft position sensor and the P0340 code went away, but the P0300 code remained and the truck still ran like crap. I have replaced the spark plug wires twice, switched out the spark plugs with the five year AZ Delco plugs, cleaned the throttle body, cleaned the mass air flow sensor, checked the air filter and housing for obstructions, checked the PCV valve, checked for vacuum leaks. Cause: No PCM codes set, CKP sensor "learn routine" completed, engine running under 3000 rpm, then test started and the PCM detected over a 10-30% misfire rate with 2 cylinders misfiring (using 1-trip detection), or it detected a 2% misfire rate with 2 cylinders misfiring (using 2-trip detection). Misfire will not always set diagnostic trouble code, so it is important to conduct a cylinder balance test to pin point which of the cylinder(s) is misfiring. Also verify the spark plugs are good. The Nissan Path : View topic - P0430, P0300 - 2007 Pathfinder - 113,000 miles. For some reason it seems like the truck is erasing the PCM when the truck is off for a while. Photo 1: The P0300 random misfire code might indicate a sympathetic cylinder misfire, which will disappear after the cylinder-specific P0304 code is ­repaired. 0 with 36,000 miles. P0300 is a diagnostic trouble code (DTC) for "Random/Multiple Cylinder Misfire Detected". I had a P0300 and P0171 code pop up last week and it was my O2 sensor on bank 2 sensor 1. However, that should show up as a code as well. Read what code P0300 - P0308 mean and possible causes and repair. 3L V6 that is throwing a code P0300 random misfire. I duct taped the gage to my windshield and drove around for a day or two. With and Without Misfire Codes. Technical Service Bulletin Transaction No: 2054613/3 01-19-01 Update Programming, DTCs P2440, P00FE, P0172, P0300 -. Afterwards, the check engine light came on and Torque found the trouble code P0302. A P0300 diagnostic code indicates a random or multiple misfire. If no leak are found the next step is to replace the spark plugs. Following is account of troubles: 1. A P0302 code, for example, would tell you cylinder number two is misfiring. It can be anywhere from two or more cylinders misfiring causing this P0300 code to appear in the computer. I have a 2005 silverado Z71. The AFM lifters tend to fail, and stick or collapse. Best to go back to basics. 3 motor p0300 codes misfire. I rev'd it a few times and idle smoothed out, missing stopped. Now P0300 being “Random” misfire, means that the control unit has not been able to pinpoint the exact cylinder or cylinders that is causing the problem, and if this is the only code this is also a general indication that the problem is intermittent. Multiple Cylinder Misfire Detected Conditions. 2008 Silverado, 4. The counts for #4 are significantly higher than the rest. car is not driven hard. You would normally start by checking your Chevy Silverado fuel trim with a scan tool. The 2009 Chevrolet Silverado has 1 problems reported for engine misfire, bucks, shuts off. I replaced the Camshaft position sensor and the P0340 code went away, but the P0300 code remained and the truck still ran like crap. Code: P0300 may also be accompanied by a 301-312. The problem can be given by a number of different faults. I started experiencing a lower RPM misfire which was most prominent off of idle to 3k rpm. In the past 2 years I have changed out all 8 plugs and wires, fuel pump, fuel filter, mass air flow sensor, clea. If no leak are found the next step is to replace the spark plugs. After that, I parked the truck for about 5 minutes, and when I started it, it threw a check engine light with the P0307 code. P0300 - Random Misfire. P0301 - Misfire on cylinder #1. ones at about 2000 miles and now at 4500. 4 Misfire Detected Note: DO NOT diagnose or replace any components for the above faults before performing the update function as explained in this bulletin. 1998 Chevy Silverado. Doing so will display your browser's source code in a new window or at the bottom of the current window. You would normally start by checking your Chevy Silverado fuel trim with a scan tool. the codes i was getting are these. Engine misfire codes are another common reason for check engine lights to come on. misfire on #3 cylinder very bad changed plugs, wires, fuel filter. A P0300 diagnostic code indicates a random or multiple misfire. 3 motor p0300 codes misfire. Hey, I have a 2000 GMC Sierra 5. It started again after reaching 65 mph on highway, then every time I stepped on gas. Here is a list of things I P0300 misfire. Brick Nation, Your expertise is appreciated. Mazda CX-7 P0300 OBD-II Diagnostic Powertrain (P) Trouble Code Information Page. It has over cracked piller about mid way up. Silverado 1500; Home › Forum › GMC › Code P0300 Multiple Misfires. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. The obd2 code showed a misfire in the #4 cylinder (P0304 I think). 8L may encounter an intermittent P0300 misfire trouble code, along with excessive emissions, poor idle quality, hesitation, and stalling. 2007 Silverado 2500HD Classic, 182,000 miles, 6. If the engine misfires at idle and it's not an ignition coil issue or a lean problem, it is common for the valve to get tight and cause a rough idle with misfire codes. well I spent the day installing new iridium Bosh plugs, FUEL FILTER :(, PVC, and cleaning the air filter and system, and no changeI can now make the misfire happen on demandjust stay at 2400RPM or higher for about 20 seconds, and the check engine light starts flashing for the P0300 code. Table Of ContentsCommon SymptomsCommon CausesPossible SolutionsSolution #1 (YouTube #1)Solution #2 (YouTube #2)Solution #3 How To Fix Cylinder Misfires (P0300, P0301, P0302, P0303, P0304, P0305, P0306) (YouTube #3)Solution #4: Trouble Shooting A Misfire Code (P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308) (YouTube #4)TroubleCodes Diagnostic IdentificationRelated Posts: If you. My light came on 2x times last week then went off. Start by checking for intake leaks, intake gaskets are common caused of multi-cylinder misfiring. Also switched the coil pack from 1st and 3rd cylinder and still got the check engine light along with codes P0300 and C1242. 3L V6 that is throwing a code P0300 random misfire. Silverado & Fullsize Pick-ups - p0300 random misfire - I have a 2004 silverado 2500hd with the 6. If there were DTCs such as P0301 through P0310, that would identify a single cylinder that is the culprit and would narrow your focus of diagnostics. Random misfire P0300 code Discussion in '2013-14 Shelby GT500' started by crucianpilot, Dec 16, 2014. Lean condition codes are causing your misfire codes. Kidblue, I spent several hours today following up on the Code p0300 on the Silverado. 7L equipped pick ups and SUVs. This is because another problem in the system may have caused the computer to throw a random misfire code. 3L Engine, PO300 Random Misfire Code A black 2008 Silverado rolled into the shop yesterday afternoon. The P0300 is a fault code which starts appearing when the car engine has a misfire which is not related to just one cylinder. Trouble Codes › P0300. It is always good to learn more. The deposits cause oxygen sensors to respond slowly to exhaust oxygen content, affecting fuel control and causing a misfire to be indicated at idle. Re: Fault Codes Explaination - P0300 & P0304 (hafa_adai) 07-14-2006 09:09 PM #2 Please use the copy codes button on the fault codes screen or post a complete Auto-Scan, I'd like to see some more data from the ECU. I get the same P0300 code occasionally. How To Fix P0300 random misfire codes in your car. Silverado & Fullsize Pick-ups - p0300 random misfire - I have a 2004 silverado 2500hd with the 6. You can also press Ctrl+U (PC) or ⌥ Option+ ⌘ Command+U (Mac) to display the source code. A P0302 code, for example, would tell you cylinder number two is misfiring. Got it diagnosed and a code P0300 came up which is a multiple cylinder misfire but was told it can be due to many things so we have to rule out different things until. P0300 is a general and random misfire code, which means that the code is not going to tell you which cylinder is causing the misfire. If the third digit in your VIN is a "1", your DTC means Infl Rest System Indicator Circuit Malf. Basics Causes of a Misfire Condition. Repair Information for P0300 Chevrolet code. I have a new to me 2006 Audi A3 2. Gettin a P0300 code for Random Misfire Detected. I am getting a p0300 random misfire code and also a c0561-71, which I heard may come on due to the p0300. The truck idles around 600? Seemingly low. The CEL came back on again after a couple dozen miles. I can start the truck fine, but it idles real shaky and tries to stall until i get about 15 miles on it when the pcm learns the tune. Possible cylinder head or valve damage on the GM 2. Code Request: If you are an external user and you are interested in using the FLASH code in your project, you can request access to the code. they have a call in to DODGE Tech Line and they are supposed to get back w/ dealer in the morning. While you are checking things it wouldn't hurt to do a compression. Interestingly enough I Had the same code and VERY similar symptoms (including the throttle hesitation) in that same Nissan (yeah she can be a b1tch like that). vacuum gauges they are a great and cheap diagnostic tool, they can help pinpoint all sorts of problems. i replaced the o2 sensor but still have the p0300 code. I have a check engine light on for over two years. 2003 Chevy Silverado 1500 LS 4WD 5. Also verify the spark plugs are good. A P0300 indicates a random or multiple misfire. SOURCE: my 2000 chevy silverado has Hi. (The term collective code ownership comes from Extreme Programming, although in the second edition the practice is called Shared Code. FIXD explains symptoms, causes, and severity of code P0300. You would normally start by checking your Chevy Silverado fuel trim with a scan tool. I just had the car tuned and I had them check the boots on the coils to. A P0302 code, for example, would tell you cylinder number two is misfiring. The shuddering also got worse, with some fairly violent shaking on startup. 2004 Chevrolet Silverado 2500HD , 6. Home › Forum › Chevrolet › 2012 Silverado misfire issues. one gm tech advised using techron fuel injector cleaner but the chevy site says to use only gm upper engine and injector cleaner. If no leak is found the next step is to replace the spark plugs. Kidblue, I spent several hours today following up on the Code p0300 on the Silverado. Hey, I have a 2000 GMC Sierra 5. Alrighty so I've replaced spark plugs twice, wires twice, coil, cap, rotor and distrubor, and have even gone as far as hollowing out the cat, It's a misfire code I can drive it for a hour and then all of sudden it runs like complete shit, it stalls(it's an automatic aswell) some times i don't know what else to do to it, any ideas on what it could be?. The truck idles around 600? Seemingly low. I would get an intermittent CEL which would produce a P0300 or P0308 code (random misfire or Cyl 8 misfire). Some Chevy Silverado owners with the 4. Engine size = 350 5. checked fuel pressure little low. My engine has a miss, but it would occasionally go away (and so would the engine light). For example:You have a General Motors vehicle and the Diagnostic Trouble Code is B0566. There could be a number of things that can cause the. P0300 sets when the control unit recognizes that one or more of the cylinders is not contributing, or working as hard as the others. We recommend Torque Pro. I purchased a 2009 Silverado two weeks ago from a guy I know pretty well, he was honest and told me all the issues with the truck and even offered to pay for parts to fix door locks, windows not working. Gage Data Out of Range. It has been two P0300 misfire codes. at sometimes 48lbs but then holds around 55 at idle which is fine the problem!!! my truck is hard to start, have to give it a little gas. Pay close attention to the engine load, throttle position, RPM, and road speed because a P0300 (which is a specific misfire) can sometimes be difficult to detect. Any ideas? FYI the vehicle had the right head replaced under warranty for the misfire recall issue a few years ago. Gettin a P0300 code for Random Misfire Detected. The poorly running. hi my punto started devoloping a misfire again, i took it to my local garage and they ran a system scan. See Also: P0300 Chevy OBDII Code. This is because another problem in the system may have caused the computer to throw a random misfire code. the codes i was getting are these. A tune-up might help but I doubt it. No experience required!. Chevy Silverado misfire Fix Chevy Silverado misfire. A P0302 code, for example, would tell you cylinder number two is misfiring. 8 liter engine. p0300 - Random/Multiple Cylinder Misfire Detected Truck is an 02 silverado with a 5. Pay close attention to the engine load, throttle position, RPM, and road speed because a P0300 (which is a specific misfire) can sometimes be difficult to detect. Or bad o2 sensor. This type of engine it is also a popular condition where the intake valve and the exhaust valve between those two valve develop a hair line crack on the number 2 cylinder. 1999 chevy silverado z71. Some Chevy Silverado owners with the 4. I agree completely with Skippy. The code sections on this internet site may not be the most current versions of the South Jordan City Code. I checked codes and found a misfire code for everyone of the six cylinders. What Does Code P0300 Mean? OBD II fault code P0300 is a generic code that is defined as " Random/Multiple Cylinder Misfire Detected", and is set when the PCM (Powertrain Control Module) detects either randomly misfiring cylinders, or misfires on multiple cylinders. 16684/P0300/000768 - Random/Multiple Cylinder Misfire Detected To Reset Misfire Adaptions: Clear the 01-Engine fault codes three times in a row in less than 29. Engine Code P0300 Multiple Misfire Hey guys, I am getting this code on my 2005 magnum R/T. A P0302 code, for example, would tell you cylinder number two is misfiring. P0300 - Cylinder Misfire Detected Random Cylinders. We recommend Torque Pro. Silverado & Fullsize Pick-ups - p0300 random misfire - I have a 2004 silverado 2500hd with the 6. It started back up and ran fine. With a code set for every cylinder plus a random misfire code P0300 I was pretty sure there would be …. It has been two P0300 misfire codes. FIXD explains symptoms, causes, and severity of code P0300. A random misfire means your engine is misfiring, but that the problem is not isolated to one or two cylinders. check engine light came on, flashed a few times, then steady. Edited February 8, 2014 by farago2r. If there is no CK ENG. The fact-checkers, whose work is more and more important for those who prefer facts over lies, police the line between fact and falsehood on a day-to-day basis, and do a great job. Today, my small contribution is to pass along a very good overview that reflects on one of Trump’s favorite overarching falsehoods. Namely: Trump describes an America in which everything was going down the tubes under  Obama, which is why we needed Trump to make America great again. And he claims that this project has come to fruition, with America setting records for prosperity under his leadership and guidance. “Obama bad; Trump good” is pretty much his analysis in all areas and measurement of U.S. activity, especially economically. Even if this were true, it would reflect poorly on Trump’s character, but it has the added problem of being false, a big lie made up of many small ones. Personally, I don’t assume that all economic measurements directly reflect the leadership of whoever occupies the Oval Office, nor am I smart enough to figure out what causes what in the economy. But the idea that presidents get the credit or the blame for the economy during their tenure is a political fact of life. Trump, in his adorable, immodest mendacity, not only claims credit for everything good that happens in the economy, but tells people, literally and specifically, that they have to vote for him even if they hate him, because without his guidance, their 401(k) accounts “will go down the tubes.” That would be offensive even if it were true, but it is utterly false. The stock market has been on a 10-year run of steady gains that began in 2009, the year Barack Obama was inaugurated. But why would anyone care about that? It’s only an unarguable, stubborn fact. Still, speaking of facts, there are so many measurements and indicators of how the economy is doing, that those not committed to an honest investigation can find evidence for whatever they want to believe. Trump and his most committed followers want to believe that everything was terrible under Barack Obama and great under Trump. That’s baloney. Anyone who believes that believes something false. And a series of charts and graphs published Monday in the Washington Post and explained by Economics Correspondent Heather Long provides the data that tells the tale. The details are complicated. Click through to the link above and you’ll learn much. But the overview is pretty simply this: The U.S. economy had a major meltdown in the last year of the George W. Bush presidency. Again, I’m not smart enough to know how much of this was Bush’s “fault.” But he had been in office for six years when the trouble started. So, if it’s ever reasonable to hold a president accountable for the performance of the economy, the timeline is bad for Bush. GDP growth went negative. Job growth fell sharply and then went negative. Median household income shrank. The Dow Jones Industrial Average dropped by more than 5,000 points! U.S. manufacturing output plunged, as did average home values, as did average hourly wages, as did measures of consumer confidence and most other indicators of economic health. (Backup for that is contained in the Post piece I linked to above.) Barack Obama inherited that mess of falling numbers, which continued during his first year in office, 2009, as he put in place policies designed to turn it around. By 2010, Obama’s second year, pretty much all of the negative numbers had turned positive. By the time Obama was up for reelection in 2012, all of them were headed in the right direction, which is certainly among the reasons voters gave him a second term by a solid (not landslide) margin. Basically, all of those good numbers continued throughout the second Obama term. The U.S. GDP, probably the single best measure of how the economy is doing, grew by 2.9 percent in 2015, which was Obama’s seventh year in office and was the best GDP growth number since before the crash of the late Bush years. GDP growth slowed to 1.6 percent in 2016, which may have been among the indicators that supported Trump’s campaign-year argument that everything was going to hell and only he could fix it. During the first year of Trump, GDP growth grew to 2.4 percent, which is decent but not great and anyway, a reasonable person would acknowledge that — to the degree that economic performance is to the credit or blame of the president — the performance in the first year of a new president is a mixture of the old and new policies. In Trump’s second year, 2018, the GDP grew 2.9 percent, equaling Obama’s best year, and so far in 2019, the growth rate has fallen to 2.1 percent, a mediocre number and a decline for which Trump presumably accepts no responsibility and blames either Nancy Pelosi, Ilhan Omar or, if he can swing it, Barack Obama. I suppose it’s natural for a president to want to take credit for everything good that happens on his (or someday her) watch, but not the blame for anything bad. Trump is more blatant about this than most. If we judge by his bad but remarkably steady approval ratings (today, according to the average maintained by 538.com, it’s 41.9 approval/ 53.7 disapproval) the pretty-good economy is not winning him new supporters, nor is his constant exaggeration of his accomplishments costing him many old ones). I already offered it above, but the full Washington Post workup of these numbers, and commentary/explanation by economics correspondent Heather Long, are here. On a related matter, if you care about what used to be called fiscal conservatism, which is the belief that federal debt and deficit matter, here’s a New York Times analysis, based on Congressional Budget Office data, suggesting that the annual budget deficit (that’s the amount the government borrows every year reflecting that amount by which federal spending exceeds revenues) which fell steadily during the Obama years, from a peak of $1.4 trillion at the beginning of the Obama administration, to $585 billion in 2016 (Obama’s last year in office), will be back up to $960 billion this fiscal year, and back over $1 trillion in 2020. (Here’s the New York Times piece detailing those numbers.) Trump is currently floating various tax cuts for the rich and the poor that will presumably worsen those projections, if passed. As the Times piece reported: