5.4L cold engine temp

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Jan 15, 2014 | 12:03 PM

#16

ashleyroachclip

Laughing Gas

Joined: Oct 2007

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Wd40 is a known method of drying electrical connections.
With your description , I believe your problem lies with either a bad boot or coil.

Jan 25, 2014 | 07:02 PM

#17

Barret88

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Joined: Jan 2014

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The problem went away for about 3 days and now its back and about as worse as ever. I replaced the coil I thought was bad , no change. Things I did when the problem started, I changed my thermostat got coolant all over the engine, and I changed my oil pressure switch. I had to move my air box to get to the oil pressure switch. Could a different coil be bad? Spark plugs? Mass airflow sensor? Fuel injector? Some other sensor? Vacuum line? Im puzzled and I need to get this fixed ASAP. No check engine light