Question about 1988 Ford F 150
1988 Ford F150 4.9 liter 6 cylinder with ported fuel injection, manual transmission. When I get to a steady speed the truck will surge. It will not do it when the engine is cold, but will do it when it is at normal operating temperature. I replaced the spark plugs, plug wires, cap & rotor, fuel filter, air filter, breather element, and changed the oil. No fix to the problem. Any idea what could be wrong?
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Posted on Jan 02, 2017
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