COP rebiuling or testing

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Jun 24, 2009 | 01:06 AM

racoonbandit

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Senior User

Joined: Dec 2005

Posts: 154

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COP rebiuling or testing

I thinking my 05 exp has a bad COP, but dont know which one. There is no error codes. I checked Autozone and they want $50 each for them. Is there a way to test them or rebuild them myself?

Thanks

Matt

Jun 24, 2009 | 08:00 AM

bumparker

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Joined: Jun 2005

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You can buy a set of 8 on e-bay for about $100, I think they are selling individuals as well. I know there are ways to test, if you search the forum you'll find lots of info on cops and some posts contain testing diagnostics.

Jun 24, 2009 | 06:10 PM

totalrecall

Senior User

Joined: Oct 2001

Posts: 167

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From: Maryland

While one of mine was going bad - didn't know at the time the slightly rough idle was the symptom, it got worse one day and started to stumble on acceleration. I pushed the pedal more to merge into traffic and the code set. I didn't stomp on the gas, just caused it to downshift one gear and that set the code. Code gave me the cylinder number and I then replaced the one COP - now the idle and power is better.

Hope this gives you an idea

Mike

Jun 25, 2009 | 12:37 PM

rattosh51

Mountain Pass

Joined: Apr 2007

Posts: 237

Likes: 2

From: St. Paul, MN

"pushed the pedal more"

This is the only way you'll get it to throw a code. The engine has to stumble for a certain period of time before it'll throw one.