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P0306 Diagnostic Trouble Code Discussion for June 2004

Cylinder 6 Misfire Detected


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Trouble Ticket Help Requests for DTC P0306
Help Request Posted
1999 Dodge Ram 1500 Truck 5.9L Misfire, MIL Lamp on VIN: 3B7HF13Z0X
P0306: Cylinder 6 Misfire Detected. Hi Dodge techs, This truck came in several weeks ago with the MIL light on. Had several misfire codes in computer. #5 cylinder has constant misfire. Has had new spark plugs, igniton wires, cap, rotor, air cleaner and a new injector for #5. Injection cleaning a...
June 02, 2004
1999 Cadillac Catera 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: W06VR52R4X
P0306: Cylinder 6 Misfire Detected. vehicle has random misfires on start up,noticed as soon as completed warm up cycle vehicle smoothed out.replaced plugs & 246 coil pack.coil pack was rusted in housing & 246 was prominent missies at first then switched to 135 and now completly random.cl...
June 04, 2004
1998 Ford Ranger XL 3.0L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FYTR14UXW
P0306: Cyl. 6 misfire. ... cylinder is out. Replaced plugs, two showed pre-ignition. High (2X normal) resistance in all wires, replaced them. Code P0306 did not return. Low coil output in Cyl 6, 6-8KV, erratic in Cyl 1. Crank position sensor shows AC Voltage to be 4.34V @ idle. Acco...
June 11, 2004
1997 BMW 740iL 4.4L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: WBAGJ832XV
P0306: cylinder6. under load check engine light flashes and stays on. po300 ccode with po305, 306 and 308. notice cut off injector drive on these cylinders. number 5 and 6 cylinder no injector drive. power to injector but for some reason computer does not ground injector on the...
June 18, 2004
1995 Ford Windstar GL 3.8L Misfire, LOSS OF AC VIN: 2FMDA5141S
P0306: misfire 6. ce light comes on at cruise. misfire codes always set, sometimes cam sen. code. at the exact same time cel comes on, ac cuts off. scanner shows the wot relay in the integrated control module is cutting off. if you turn key off back on,ac works until cel comes ...
June 22, 2004
1998 Oldsmobile 88 Royale 3.8L Misfire, MIL Lamp on VIN: 1G3HN52K7W
P0306: Misfire Cyl6. ... MIL. Pressure tested coolant system, open throttle plate and watched Dexcool run out of intake. Changed upper plenum and plugs. Cleared p0306 and test drove vehicle. Ran great. Released vehicle to customer. The next day customer returned with flashing MIL....
June 30, 2004
1999 Dodge Ram 1500 Truck 5.9L Misfire, MIL Lamp on VIN: 3B7HF13Z0X
P0306: Cylinder 6 Misfire Detected. Hi Dodge techs, This truck came in several weeks ago with the MIL light on. Had several misfire codes in computer. #5 cylinder has constant misfire. Has had new spark plugs, igniton wires, cap, rotor, air cleaner and a new injector for #5. Injection cleaning a...
June 02, 2004
1999 Cadillac Catera 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: W06VR52R4X
P0306: Cylinder 6 Misfire Detected. vehicle has random misfires on start up,noticed as soon as completed warm up cycle vehicle smoothed out.replaced plugs & 246 coil pack.coil pack was rusted in housing & 246 was prominent missies at first then switched to 135 and now completly random.cl...
June 04, 2004
1998 Ford Ranger XL 3.0L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FYTR14UXW
P0306: Cyl. 6 misfire. ... cylinder is out. Replaced plugs, two showed pre-ignition. High (2X normal) resistance in all wires, replaced them. Code P0306 did not return. Low coil output in Cyl 6, 6-8KV, erratic in Cyl 1. Crank position sensor shows AC Voltage to be 4.34V @ idle. Acco...
June 11, 2004
1997 BMW 740iL 4.4L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: WBAGJ832XV
P0306: cylinder6. under load check engine light flashes and stays on. po300 ccode with po305, 306 and 308. notice cut off injector drive on these cylinders. number 5 and 6 cylinder no injector drive. power to injector but for some reason computer does not ground injector on the...
June 18, 2004
1995 Ford Windstar GL 3.8L Misfire, LOSS OF AC VIN: 2FMDA5141S
P0306: misfire 6. ce light comes on at cruise. misfire codes always set, sometimes cam sen. code. at the exact same time cel comes on, ac cuts off. scanner shows the wot relay in the integrated control module is cutting off. if you turn key off back on,ac works until cel comes ...
June 22, 2004
1998 Oldsmobile 88 Royale 3.8L Misfire, MIL Lamp on VIN: 1G3HN52K7W
P0306: Misfire Cyl6. ... MIL. Pressure tested coolant system, open throttle plate and watched Dexcool run out of intake. Changed upper plenum and plugs. Cleared p0306 and test drove vehicle. Ran great. Released vehicle to customer. The next day customer returned with flashing MIL....
June 30, 2004