Question about 1990 Ford F150
Starts up fine every time, 4.9 litre 4speed under 100,000 miles.runs great until it warms up. 10 minutes or so, then sputters badly during acceleration. it never stalls, just sputters badly. I changed spark plugs, wires, cap and rotor. no change. What do you think. Thanks.
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Posted on Jan 02, 2017
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