Odd engine surge at idle right after start. - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 04-22-2006, 11:05 PM   #1
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Default Odd engine surge at idle right after start.

I was out running errands today, and twice, when I got back in my car and started it, (transmission in Park) after about a second or two the (normal) gargling noise from my K&N intake started to get louder and the engine RPM started to increase, getting up to about maybe 3000 over the course of a couple seconds, then it went back to normal idle and was fine. Next time I stopped for another errand, it did the same thing when I started it again.

Anyone ever have that happen before? Ideas?
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Old 04-24-2006, 07:35 AM   #2
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Possilby dirty IAC. When was the last time you cleaned the TB/IAC?
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Old 04-24-2006, 09:34 AM   #3
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If that'* the direction you choose, the article is waiting for you in Techinfo.
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Old 04-25-2006, 02:57 AM   #4
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Will I lose any coolant if I pull the throttle body to clean it? (I would need to pull it to clean it, right?)

Just need to know before I start taking things apart!
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Old 04-25-2006, 08:49 AM   #5
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Yes, a very small amount would be lost. Probably not enough to see in the radiator though.
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