P0307 - Misfire Cylinder 7. Chevy Truck Forum Silverado Sierra GMC Truck Forums. P0307 - Misfire Cylinder 7. Jan 15 2018, 9:03pm. All, I appreciate this site. It's a great way to help me trouble-shoot problems with my truck. I have a 2009 Silverado 4x4. I purchased it new in 2011, and it had 25,000 miles. 02/02/2016 · Hey guys. Im new to to this forum. I will try my best to describe my situation as accurately as possible. Thanks in advance for your help! About 2 months ago i was driving home from work in my 2008 chevy silverado 1500 6L v8 when i started to hear a slight knocking sound coming from the engine about once every 20 times i tried to accelerate. P0307 CHEVROLET Tech Notes The P0307 code means that the cylinder 7 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 7.
Have 2008 chevy silverado 5.3 has a misfire number 2 cylinder. Have check spark plug, wire, coil pack, injector, spring valvle, had all injectors clean, pressure test dry and wet test.Do anyone have. 15/07/2016 · I have a 2008 Silverado that had a stabilitrac problem, and the service brakes came on. Then I got a code p0307, cylinder 7 misfire. After changing all of the plugs all of my engine faults went away. My engine purrs as it should and the transmission.
Misfire on 2008 chevy silverado 1500 changed all plugs and plug wires still missing on cylinder 6 put test light in each - Answered by a verified Chevy Mechanic. 17/07/2017 · After 137000 miles, I got luck and had no AFM issues until now as my 2009 Sierra is throwing a misfire code for cylinder 7 P0307. I swapped the coil/wire/plug with cylinder 3 and the fault followed, so I swapped the coil back to its original 7.
22/03/2017 · I did a search here for it but came up empty. Last week, my Check Engine Light came on briefly while on the highway. Just before and after that I noticed a reduced lack of response to giving it more throttle. I had a local guy pull the CEL code and said it came up as 7 Cylinder Misfire. I'm at 55,000 miles and am off warranty. We are working on a 2008 Chevy Silverado 5.3. I am getting a p0300 random misfire code and also a c0561-71, which I - Answered by a verified Auto Mechanic. Some customers may comment on an SES light, engine misfire on cylinder 1, 4, 6, or 7, and/or tick noise.
Cylinder 7 Misfire Detected. What the P0307 code means. When the P0307 diagnostic trouble code is stored by the Powertrain Control Module PCM, it is an indication that a misfire has been detected in cylinder 7. More specifically, the PCM detects an increase or decrease in crankshaft revolutions per minute RPM that exceeds 2%. The engine is also not firing all of the fuel, so raw fuel is also passing through Cylinder 4 into the exhaust. Mileage may suffer as well when your Silverado has P0304 as well. Chevy Silverado P0304 Definition. P0304 is a cylinder specific misfire code, which means that Cylinder 4. 28/02/2018 · My 2008 5.3L 4WD Avalanche with ~135K miles has recently been throwing a P0306 cylinder 6 misfire, along with a Stablitrak warning. It first happened a couple weeks ago but only lasted a day. I cleared the code and it was fine for another couple of weeks before it happened again today.
The engine is also not firing all of the fuel, so raw fuel is also passing through cylinder 3 into the exhaust. Mileage may suffer as well when your Silverado has P0303. Chevy Silverado P0303 Definition. P0303 is a cylinder specific misfire code, which means that Cylinder 3 is misfiring and causing the code. 2002 Chevy Silverado, Automatic, My truck, during cold weather only, gives me a cylinder misfire code. When I first start my truck it will rev high and then the rpms will drop, then it will begin surging. Sometimes the rpms will drop too low and the engine will turn off. After it.
P0307 Cylinder 7 Misfire Technical Description. Cylinder 7 Misfire Detected. What does that mean? This diagnostic trouble code DTC is a generic powertrain code, which means that it applies to OBD-II equipped vehicles. The 2008 Chevrolet Silverado has 13 problems reported for engine missing / hesitating. Average repair cost is $2,870 at 109,450 miles. Misfire in cyl 7 on 2007 Suburban 1500 4x4 with 5.3 L flex fuel LTZ. Ask Question. Browse other questions tagged chevrolet misfire suburban or ask your own question. Low compression in one cylinder with a misfire code, but no smoke in the exhaust. 03/06/2016 · Chevy Misfire cylinder 3. I'm looking at a 1997 Chevy 1500. Has a misfire in cylinder 7 he has already changed plugs wires cap rotor and fuel pump. Cylinder 5 misfire 1998 Chevrolet Silverado 5.7 4 Answers. Can someone ease tell me why I'm always getting a p0305 misfire what could cause 5 to keeping doing this.
Chevy Silverado P0305 Definition. P0305 is a cylinder specific misfire code, which means that Cylinder 5 is misfiring and causing it. An important thing to understand when finding the location of Cylinder 5 is that it’s going to be the fifth cylinder in the firing order. It won’t be the fifth cylinder that you might see when looking at the. 10/03/2013 · P0307, witch is Cylinder 7 misfiring. Ive changed all the lifters,coils,injectors and solnoids. Plugs and wires as well. Even turned off the AFM to see if that would help. cleaned the pushrods, made sure they worked. valley cover has been cleaned as well 2 Answers. I have a 2008 Chevy Silverado 5.3. Motor has the AFM system. Has a misfire on cylinder 7. Have replaced the lifters, coil, inj, plug and plug wire. Engine goes in and out of V4 mode with no problem and passes all wiring tests when it does so. The misfire only happens at lower speeds and seems to happen more after making a left hand turn. Not sure that has any relevance or not. P0304 CHEVROLET Tech Notes The P0304 code means that the cylinder 4 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 4. I have a 2008 Chevy Silverado w/ a 4.8 engine that has 85,700 to date. The summer of 2014 my engine check light came on with 78- 79k miles. took it to an auto parts store where they hooked up their little machine and gave me a code of PO 442, which tells me to replace the gas cap. Did that and within 7 days the light came back on.
P0303 CHEVROLET Tech Notes The P0303 code means that the cylinder 3 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 3. P0305 CHEVROLET Tech Notes The P0305 code means that the cylinder 5 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 5. P0307, witch is Cylinder 7 misfiring. Ive changed all the lifters,coils,injectors and solnoids. Plugs and wires as well. Even turned off the AFM to see if that would help. cleaned the pushrods, made sure they worked. valley cover has been cleaned as well 2 Answers. I have a 2008 Chevy Silverado 5.3.
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