i have a vauxhall combo 2008 on 90.000 miles. its just started to stall when in idle.

2008 VAUXHALL COMBO
90,000 MILES
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DANTHESPAN
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when in idle it dips to 500 revs then stalls. there is no smoke and runs well when going. had a diognostic done which showed no faults. i also changed the fuel filter which seemed to help a bit for a day but its now stalling most of the time when in idle any suggestions?
Nov 7, 2011 at 10:35 AM
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WRENCHTECH
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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.
Nov 7, 2011 at 11:01 AM