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Old 08-05-2015, 04:19 PM   #6062
Join Date: Mar 2006
Location: Gilbert
Posts: 40,445
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Originally Posted by phatman View Post
Okay, so I'm ruling out the cat. Car can idle for twenty - thirty minutes just fine. It's bogging down hard at 4,000 RPMs. I've replaced the spark plugs. I'm wondering if I ruined my water temp sensor in the head when the gasket finally gave out and I overheated. From idle up to 3000 RPMs I'm fine. I hit 4000 and it goes nuts. Thoughts?
any check engine lights?
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