High idle

KillerofRice · Post by **KillerofRice** » Wed Dec 28, 2005 7:51 pm

My quad seems to have an idle problem. I know it will idle high when first started to warm up quicker but it won't drop to at least a 1000 rpm when completely warm. Sometimes it will sit and fluctuate in the rpms. My service engine light has never come on. Could it be the idle air control valve? I have put NGK copper core spark plugs in and I just checked the coil packs and the coil pack cover all three look brand new. Any ideas would be appreciated.

Guest · Post by **Guest** » Wed Dec 28, 2005 8:28 pm

looks can be deceptive, autozone tests most electronics, they might help you out for free, they will scan it for free also. ask for a gm code key, its free and will fit nicely on your key chain, buy hanyes manual, chapter six will help you to fix it yourself.

1988GTU · Post by **1988GTU** » Thu Dec 29, 2005 4:57 am

Didn't you have the coolant in the oil? Or atleast some what on the dipstick?
Could be the head/head gasket is causing a leak and sucking in air, then when the engine gets to operating temp the gasket or head closes up allowing to run normal (Some what).

Guest · Post by **Guest** » Thu Dec 29, 2005 12:50 pm

Does your car have a TPS?

IsaacHayes · Post by **IsaacHayes** » Thu Dec 29, 2005 2:45 pm

IAC valve probaby, unless you have other more serius problems like bad headgasket as stated above.

KillerofRice · Post by **KillerofRice** » Fri Dec 30, 2005 10:33 am

I have put on a new fuel filter and that has helped some. It has at least dropped to 1000 rpms but what it the idle speed on a quad suppose to be?

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High idle

High idle

High idle

High idle

High idle

High idle

High idle