2002 4.6 Running poorly - FordTough.ca - Home of Canadian Ford Truck Enthusiasts
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post #1 of 3 (permalink) Old 05-24-2011, 01:06 PM Thread Starter
Join Date: Sep 2009
Location: renfrew
Posts: 27
2002 4.6 Running poorly

Truck has a miss on acceleration, like its running out of fuel. At wot it will accelerate hard then its like it it looses a cylinder or 2 then snaps right back and accelerates hard.
I tried 8 new plugs, 8 new coils, 8 new injectors, tested fuel pressure, new MAF, did a vacuum test and it was fine. At my wits end. Any ideas?
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post #2 of 3 (permalink) Old 05-24-2011, 08:44 PM
Join Date: Mar 2010
Location: kapuskasing ontario
Posts: 166
a new truck just a joke
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post #3 of 3 (permalink) Old 07-20-2011, 07:54 AM
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Join Date: Apr 2011
Location: Kingston, Ont
Posts: 22
Maybe a bad wire to the computer.

I know it's different but my vw was doing the exact same thing last spring. There is two computer on my model and one of them had a terminal all rusty. So I changed it and it fixed the problem.

I don't take any credit for this fix as I was looking for something else when I found that...

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