COP Problems....Maybe???
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COP Problems....Maybe???
I run a 2001 F150 5.4L. I am having some problems and I need help. When I am driving my truck and RPMs are around 1000 – 1200 I get a miss under light acceleration. There is no check engine lights on but I think it’s a COP. I hope its not the trans. Any ideas?
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Joined: Aug 2002
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From: BC, Canada
Welcome to the forum Mike 
How many miles on the spark plugs?
Does the check engine light come on for a few seconds when you first start the truck?
How many miles on the spark plugs?
Does the check engine light come on for a few seconds when you first start the truck?
Last edited by Racerguy; May 23, 2007 at 08:23 AM.
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I got the truck 3 years ago and I have not changed the plugs. The truck has 120000 on it now. As far as the light never comes on. You think it could just be the plugs?
Last edited by emtmike; May 23, 2007 at 06:13 AM.
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Joined: Aug 2002
Posts: 12,679
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From: BC, Canada
The check engine light should self-test when you turn the ignition on. If it doesn't, due to a burned out bulb or whatever, then you'd never know if there was a problem that should have turned it on.
Since you're not sure how old the plugs are that's where I would start.
Has the fuel filter been changed?
Since you're not sure how old the plugs are that's where I would start.
Has the fuel filter been changed?
