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P0307 Diagnostic Trouble Code Discussion for June 2014

Cylinder 7 Misfire Detected


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Trouble Ticket Help Requests for DTC P0307
Help Request Posted
2000 Chevrolet Express 3500 5.7L MIL Lamp on VIN: 1GCHG35R1Y
P0307: Cylinder 7 Misfire Detected. Van came in with a P0300 and P0307 With a scanner i get a Cly 7 missfire count along with some numbers on Cly 4. The counts will go up at 1000 RPM and above to around 2000 rpm The van runs smooth, Compression test is 150 on cly 7 along with Cly 5 being 150, In...
June 09, 2014
2007 Jaguar XK 4.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: SAJWA44B97
P0307: Cyl. 7 misfire. Month ago, had cel with evap and t-stat codes. Replaced parts as stated above. Customer complaint of misfire / rough idle on start up, for less than 30 seconds then will smooth out. No other driveability issues. Can only duplicate issue after car has been ...
June 27, 2014