Mechanics

WHY OLDS CUTLASS STALLS AFTER RUNNING FOR 20MINUTES OR WHEN IN IDLE OR STOP. ON EXPRESSWAY RUNS FINE IF I DONT STOPCUTS OFF WHEN I SLOW DOWN

1987 Oldsmobile Ciera • 13,000 miles

Stalling when stop or idle
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Ronrsp
February 19, 2012.



You may have a bad IAC ( idle air control) but try eliminating any vacuum leaks and 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.

Wrenchtech
Feb 19, 2012.


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