Idle RPM fluctuation
12-03-2009, 08:47 PM
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Join Date: Mar 2008
Location: Oklahoma City, Oklahoma U.S.A.
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Idle RPM fluctuation Tonight I was on the way to chili's on memorial and when i stopped for a red light the rpms fell to 750 as normal then after a few seconds they began to drop momentarily to 500 then jump to 1050 before returning to 750. The rpms did this 4 times over a few seconds then the light changed and the car drove fine. When I pulled into the restaurant, turned the climate control off, and stopped, the car idled normally. It's a 2000 SS 6spd few mods, stock cam, heads, and valvetrain. IAC motor or TPS maybe...?
