engine stalls and battery light comes on when you stop at a corner if you do not maintain 500 RPM

2003 CHEVROLET SILVERADO
97,000 MILES
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MISFITSKID
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  • 1 POST
Had the alternator and the battery checked and they are OK. The orginal battery died so a battery charger was placed on the battery. Now the battery light will come on the engine will stall if the motor goes below 500 RPM at an idle.
Jan 3, 2012 at 5:44 PM
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WRENCHTECH
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  • 20,761 POSTS
First eliminate all vacuum or air leaks in the system. You may have a bad IAC ( idle air control) but try cleaning the throttle body first. Remove the intake snorkel, have someone hold the throttle wide open for you and scrub the back side of the throttle plate and surrounding bore with an old tooth brush and some carb cleaner. Be sure to spray some into the small holes next to the throttle plate. That should help stabilize the idle. If it still has a problem, replace the IAC.
Jan 3, 2012 at 6:00 PM