2004 Ford F-150 Repair Question
2004 Ford F150 sudden Rough Idle
2004 Ford F150 V8 Four Wheel Drive Automatic 95K miles
I have a 26 mile commute to work daily, as I neared my destination, my truck began to sound like a deisel, shaking and shuddering, with a squealing from under the hood, but it never fully stalled. I made it to a parking space where I let it sit for at least 2 hrs. checked the oil and water (both fine) started the truck,(started fine) but the squealing was there immediatley followed by the rough idle, (ac off). I had it towed home for fear of possible damage to the engine.
The next day I started it, with no squealing, just the idle going up and down, and nowhere near as rough as it was, but I did not let it get hot like the drive to work would have.
I figure the squealing could be a pulley possibly seizing up, but wasn't sure if that would cause such a crazy idle.
I purchased a code reader that did not work, so I returned it. I plan on getting another but I have to wait for a payday.
I bought this truck new, serviced regularly, and this is the first real problem I have ever had.
Thanks in adviace for any help and a truely fantastic site.
Engine running rough or misfiring can be cause by the following:
1.Defective spark plug
2.Inadequate spark/coil,defective spark plug wire.
3.Lack of compression
4.False air leakage.
5.Faulty fuel injectors.
6.Insufficient fuel pressure.
8.EGR valve that is leaking.
10.Throttle position sensor.
11.Idle air control valve.
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