2003 Ford F-150 King Ranch 5.4L Misfire, MIL Lamp on
Hi all, this truck has been in and out of our shop with an intermittent cold start misfire on the #4 cylinder. We replaced the spark plug and coil on #4 thinking this was the reasonable cause. Truck came back in about a week later with the same problem. On col...
FIX posted 10/19/2012
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Message Closed w/FIX
Vehicle Data2003 Ford F-150 King Ranch
Trouble Codes
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Message Closed w/FIX
Vehicle Data
2003 Ford F-150 King Ranch
VIN | 1FTRW07L33 |
Engine | 5.4 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Misfire, MIL Lamp On |
Occurs | Cold |
Trouble Codes
P0304 | Cylinder 4 Misfire Detected |