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Old 25 Apr 2008, 01:56 am
sawdust123 sawdust123 is offline
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Join Date: Jan 2005
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Posts: 105
Default Re: Really? A/C Compressor Stumble Is Normal?

I had the same problem. It turns out the answer was a fouled spark plug caused by a leaking valve cover gasket.

The stumbling was more prominent with the AC on but as the problem got worse it happened with the AC off too. I replaced the wires but that didn't help. Then I pulled the plugs. The original plugs looked good but one was covered in oil. It turned out the oil was dripping into the spark plug well and down the plug threads until it fouled.
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