Join Now
International Automotive Technicians Network

P0307 Diagnostic Trouble Code Discussion for July 2010

Cylinder 7 Misfire Detected


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0307
Help Request Posted
1999 Chevrolet Tahoe LS 5.7L Misfire, MIL Lamp on VIN: 1GNEK13R9X
P0307: Cylinder 7 Misfire Detected. My own vehicle bought at 100k miles soon after developed a misfire cyl #8 which turned out to be a sticking ex. valve after research indicated this model has that history. Removed retainer/spring & cleaned guide with throttle body cleaner & problem sol...
July 14, 2010
1998 Lincoln Mark VIII 4.6L Misfire, MIL Lamp on VIN: 1LNF1V2WY6
P0307: misfire cyl 7. ... P0307, it also had a code P0411 storied. the customer knew about the P0411 and did not care, it has been on about eight month's. The flashing just started that morning, the tech replaced #7 coil and the spark plugs, they were badly worn. It still had the m...
July 22, 2010
1999 Mercury Grand Marquis GS 4.6L Misfire, MIL Lamp on, buck VIN: 2MEFM74W9X
P0307: cylinder 7 misfire. car started acting up three years ago. Would randomly buck under a steady load. If you accelerated or decelerated would smooth out. Did not act up every time car was driven. Did not set any codes. Made no difference in drive or overdrive. Didn't matter wet, dr...
July 23, 2010
2005 Chevrolet Silverado 2500 HD LT 6.6L Misfire VIN: 1GTHK232X5
P0307: Cylinder 7 Misfire Detected. [...]
July 29, 2010
1999 Chevrolet Tahoe LS 5.7L Misfire, MIL Lamp on VIN: 1GNEK13R9X
P0307: Cylinder 7 Misfire Detected. My own vehicle bought at 100k miles soon after developed a misfire cyl #8 which turned out to be a sticking ex. valve after research indicated this model has that history. Removed retainer/spring & cleaned guide with throttle body cleaner & problem sol...
July 14, 2010
1998 Lincoln Mark VIII 4.6L Misfire, MIL Lamp on VIN: 1LNF1V2WY6
P0307: misfire cyl 7. ... P0307, it also had a code P0411 storied. the customer knew about the P0411 and did not care, it has been on about eight month's. The flashing just started that morning, the tech replaced #7 coil and the spark plugs, they were badly worn. It still had the m...
July 22, 2010
1999 Mercury Grand Marquis GS 4.6L Misfire, MIL Lamp on, buck VIN: 2MEFM74W9X
P0307: cylinder 7 misfire. car started acting up three years ago. Would randomly buck under a steady load. If you accelerated or decelerated would smooth out. Did not act up every time car was driven. Did not set any codes. Made no difference in drive or overdrive. Didn't matter wet, dr...
July 23, 2010
2005 Chevrolet Silverado 2500 HD LT 6.6L Misfire VIN: 1GTHK232X5
P0307: Cylinder 7 Misfire Detected. [...]
July 29, 2010