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P0308 Diagnostic Trouble Code Discussion for March 2012

Cylinder 8 Misfire Detected

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Trouble Ticket Help Requests for DTC P0308
Help Request Posted
2002 Ford F-150 King Ranch 5.4L Cuts out, Misfire, MIL Lamp on VIN: 1FTRX18L02
P0308: Misfire cyl 8. ... misfire cyl # 8 and p0316 misfrire under 1000 rpm. Test drove and found bad misfire or more like cuts out under low rpm load, give agressive throttle and engine runs good. Checked coil with scope and found ramps look ok. Any one got any thoughts on this be...
March 15, 2012
2006 Ford F-150 XLT 5.4L Misfire, MIL Lamp on VIN: 1FTPX14556
P0308: cylinder 8 missfire. Problem only happens at speeds of 45mph and above, with torque converter locked. Cylinder 8 missfires and logs code when you lean into throttle easy, and wont stop until more throttle is applied or converter unlocks. Swapped coil and boot w/cyl 7, replaced plu...
March 27, 2012