How to clean or replace idle air flow valve on A Chevy S10 262 carb?

Jim Stillwell

Asked by Apr 13, 2014 at 01:12 PM about the 1993 Chevrolet S-10

Question type: Maintenance & Repair

starts hard won't idle but runs fine at higher RPM's

1 Answer


Sorry buddy theres no such animal, if you have injection rather than a carb, theres an idle air control valve on the throttle body, but first try cleaning the throttle bore. you're going to need a tooth brush type brush that is carb cleaner proof, pull the big rubber hose off the T body, black sludge builds up on the bore at the plate.with the engine off, open the throttle, spray the bore with carb cleaner, scrub it out w/the brush and spray it again. It will run like crap for a second when you start it but should idle fine in a minute or 2

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