hot start problem 302 FI

135

Asked by jabo1of2 Jan 17, 2011 at 04:38 PM about the 1985 Ford F-150

Question type: Maintenance & Repair

runs/drives perfectly until you cut if off - 1 minute or 1 hour will not start -sit overnight - starts immediately and goes until you turn it off again.

6 Answers
1,595

Curtis answered 13 years ago

Any check engine lights? Is your starter draging, lights staying bright or dimming?

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papa answered 13 years ago

their is a gray box at AC ,ignition control modgle,that sounds like your problem.it was a comon problem on all 85 ford 302.

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135

jabo1of2 answered 13 years ago

I changed that earlier, but since I have found a large wiring harness, that lead to it, badly burned out. I wonder if all that has cratered the module. You are right that could be a problem. Those things are sensitive. Thanks, Jack

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135

jabo1of2 answered 13 years ago

All of those appear to be strong, but...I believe I am going back and start at the beginning and check everything. Thanks, Jack

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papa answered 13 years ago

that just may be your problem,u may have a wire that is shorting out the system,u also probly need another,ICM.

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135

jabo1of2 answered 13 years ago

I was afraid you were going to say that - they are very sensitive and a short or bad processor can blow one. I have replaced one before. Many thanks, Jack

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