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P0307 Diagnostic Trouble Code Discussion for July 2011

Cylinder 7 Misfire Detected

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Trouble Ticket Help Requests for DTC P0307
Help Request Posted
2007 Chevrolet Suburban 1500 LTZ 5.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3GNFK16317
P0307: Cylinder 7 Misfire Detected. ... thank all of you for your time in advance. Lets start off from the beginning. At about 85,000 miles this vehicle started to have issues with predetonation (pinging). At first this was only up hill or under relatively hard acceleration. At about 120,000 mil...
July 07, 2011
1997 Ford F-150 XL 5.4L Hesitation, Misfire, MIL Lamp on VIN: 1FTEX17LXV
P0307: Cyl7 misfire. Replace injector, coil, motorcraft spark plug, fuel filter, puel pressure good, compression good, pass the leak down test, and still has misfire in same cylinder,any help would be good, thanks
July 25, 2011