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P0300 Diagnostic Trouble Code Discussion for December 2015

Multiple Misfire Detected


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Trouble Ticket Help Requests for DTC P0300
Help Request Posted
2006 Ford Escape XLT 3.0L Misfire, MIL Lamp on VIN: 1FMYU03116
P0300: Random Misfire Detected. Normally these don't get me stumped but this one has. At idle, hot, this has a misfire on Cylinder 4. It is NOT felt, I can only see it on misfire counters. Swapped #4/5 coils, no change. Swapped plugs, no change. Static compression on all front three cyl...
December 02, 2015
2006 Ford Escape XLT 3.0L Misfire, MIL Lamp on VIN: 1FMYU03116
P0300: Random Misfire Detected. Normally these don't get me stumped but this one has. At idle, hot, this has a misfire on Cylinder 4. It is NOT felt, I can only see it on misfire counters. Swapped #4/5 coils, no change. Swapped plugs, no change. Static compression on all front three cyl...
December 03, 2015
2002 Chevrolet Astro LT 4.3L MIL Lamp on
P0300: Multiple Cylinder Misfire Detected. This has misfire counts on mainly cyl #4 but not at idle. It also has misfire counts on #1. Occasionally it counts #2. It runs perfect, no misfires can be detected. ac delco cap, ac delco crank sensor. Distributor, fuel injector,plugs,wires and even the cylind...
December 14, 2015
2010 Volkswagen Jetta SE 2.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3VWRX7AJ3A
P0300: misfire. vehicle just started to misfire on customer cylinder number 3 replaced all worn spark plugs also coils number 2,3,4 switched injectors multiple times voltage at coils and injectors with in spec cleaned valves with vw procedure compression and running compressi...
December 14, 2015
2010 GMC Terrain SLT 3.0L Excessive Emissions, No Start, Poor Idle Quality VIN: 2CTFLGEY6A
P0300: multiple cylinder misfire. can injectors be replaced without removing head??
December 15, 2015
2009 Jaguar XF Premium Luxury 4.2L Poor Idle Quality, Surge, Stall, Misfire VIN: SAJXA06B49
P0300: random multi misfire. only happens after a cold soak. Car starts and idle fluctuates. Sometimes stalls and then have to restart. Aft 15sec of running cannot duplicate. i suspect a vacuum leak but cannot prove it with smoke test or watching fuel trim reaction to inducing a rich cond...
December 15, 2015
2006 BMW 650i 4.8L No Start, Stall, Misfire VIN: WBAEK13436
Customer was coming in for a steering light on. On the way here car just died. When cranking the car will try to start if you give it gas I can keep it running for about 10-20 seconds, heavy misfiring and dies out. I have 50 psi for fuel pressure. Has anyone s...
December 16, 2015
2005 Nissan Altima SE-R 3.5L Excessive Emissions, Poor Idle Quality, Misfire VIN: 1N4BL11D05
P0300: Multiple Misfire Detected. Hello fellow techs. I have a problem with this altima. Vehicle originally came in for major service. I performed the service ( air filter, pollen filter, coolant, trans fluid, brake fluid, spark plugs, and oil change. I used ngk plfr5a spark plugs. Everything ...
December 16, 2015
2002 Dodge Dakota Sport 4.7L Hesitation, Cuts out, Misfire, Exhaust Backfire VIN: 1B7HG38NX2
P0300: Multiple Cylinder Misfire Detected. Real problem vehicle here. Vehicle came in with a bad misfire under load plus backfiring out of the exhaust with no power on acceleration. Always codes a misfire on cylinders 1, 3, and 5. Swapped injectors and coils, codes stayed. Replaced spark plugs (autol...
December 18, 2015
2002 Chevrolet Astro LT 4.3L MIL Lamp on
P0300: Multiple Cylinder Misfire Detected. This has misfire counts on mainly cyl #4 but not at idle. It also has misfire counts on #1. Occasionally it counts #2. It runs perfect, no misfires can be detected. ac delco cap, ac delco crank sensor. Distributor, fuel injector,plugs,wires and even the cylind...
December 23, 2015
2011 Dodge Nitro Heat 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1D4PU4GX2B
P0300: Misfire. P0300 code. Smoke tested for leaks.found leak at the egr valve,replaced valve and retested. Ok. Test ran truck still misfiring on cylinders 2, 4 and 6. Removed intake and replaced spark plugs. Re-tested, and still missing on cylilnders 2, 4 and 6 at idle. Remo...
December 26, 2015
2004 Chrysler PT Cruiser GT 2.4L Stall, MIL Lamp on VIN: 3C8FY78G74
P0300: Multiple Cylinder Misfire Detected. ... intermittently stalls out and keeps setting DTC's. This vehicle came in for an intermittent stalling concern and CEL on. First only had DTC P0038 and P0032 for 02 sensor heater circuits. Both sensors are new from another shop on a new Catalyst and appear c...
December 28, 2015