Idle rpm dropping below 500
Thread Starter
Intermediate
Joined: Apr 2007
Posts: 42
Likes: 0
From: Greenacres Florida
Idle rpm dropping below 500
Has anyone had this problem? My idle rpm will sometimes drop below 500 rpm when the engine is comming down off accelleration and stay there for a while. Most of the time it will correct itself after a few seconds but sometimes it will stall. It will do it in between shifts sometimes too almost like it's misfiring. I checked to make sure all the spark plug wires are connected and they're all on tight. I wonder if it's a faulty spark plug or a bad wire. Any advice on what this could be would be greatly appreciated. The car has about 65,000 miles on it with the only mods being a Corsa exhaust and a CAI from Corvette Concepts.
Safety Car
Joined: Aug 2000
Posts: 4,933
Likes: 30
From: San Rafael CA
First thing I'd check is for either an air leak in the intake stystem, or a leak in the vacumn system. Either will cause a fluctuating idle, with a leak in the air intake system being my more likely choice.
