Question about 1988 Ford F 150

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During acceleration my truck seems to miss-fire. could it be my plugs or coils.

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  • gdanzaire Aug 14, 2008

    I have a 2001 F-150 XL with a 4.2 liter engine, 59,000 miles. 5 speed manual tranny. During acceleration it seems to miss-fire. Is it my plugs or coil?

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What engine do you have? How many miles are on it and when was the last time you had it tuned up?

Posted on Aug 11, 2008

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I had the same issue with my 88. i went thru the whole ignition system but it turns out there is just a bad ground in the harness what i did was just have a ground from the battery to the core support and that helped bring the ground back to the battery. if you have a distributor module give that a shot sounds crazy but its the hole ohms law B.S but it works

Posted on Sep 12, 2008

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I had the same problem with my 1988 F150 for a long time. Had several places look at it but no one could find the problem. Finally had a mechanic tell me to get a new set of spark plug wires. That took care of it for a while and then I noticed that the engine heat shield around the spark plug locations was missing on one side of the engine. It kept melting the same spark plug boot after only running a few miles. I had the shop who left it off replace the shield and the problem never happened again. Hope that helps you. It nearly drove me crazy.

Posted on Aug 14, 2008

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