F150 MISFIRE

1999 Ford F-150

Tiny

jesse brown

June, 13, 2009 AT 12:46 AM

Engine Performance problem
1999 Ford F150 V8 Two Wheel Drive Automatic 158000 miles

I changed the spark plugs I put motocraft plug in it.
But my truck is still shaking are you could say jumping when I push the trootle in it only does it when I go up a hill or get over 40 mph. I had a computer check my service engine light it said the number 4 cylinder was misfireing could it be the coil pak.

FOUND 2888 RELATED QUESTIONS

Engine Miss

52 ANSWERS
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1 Answer

Tiny

island_pride71

June, 13, 2009 AT 2:09 AM

You should check no.4 sparkplug, compression and injector

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