1985 Chevrolet Truck Repair Question
1985 Chev K1500 idles slow
Clean out the idle air control valve and see what happens
68 questions asked
Check for an EGR valve not closing all the way at idle first.
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.
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I have replaced the egr valve.
1 question asked