What steps do I need to set my idle on 2002 Mercury Cougar V6 2.5 xr high output iac valve

SOURCE: Saturn SL 2002 High Idle

Intake manifold gasket. Leaking where intake meets head.

SOURCE: High engine idle 94 Mercury Cougar

replace throttle body gasket. first check to see if carbon has built up around the throttle valves in throttle body if so remove and clean it with throttle body cleaner.and a old tooth brush. besure to remove all electrical components or any thing that plastic or rubber the cleaner will destroy it.

Marvin

• 85242 Answers
• Posted on May 20, 2009

SOURCE: fast idle after warm up .already changed IAC valve

fast idle is many times caused by a engine intake vacuum leak, use a can of carb spray and spray the top of the engine for leaks, if u hit one u will hear the eng change idle speed, also look for split or leaking vacuum hoses.

Ronny Bennett Sr.

• 6988 Answers
• Posted on Jul 05, 2009

SOURCE: 1993 olds cutlass supreme twin cam v6 high idle

replace tps throttle posision sensor

SOURCE: IAC control valve. Locato\ion 2002 ford escape

If it's not idling and has problems starting, it's probably the IAC motor. It's located on the throttle body. Follow the airfilter box all the way to the engine, where the rubber flex hose attaches. The throttle body should be the first aluminum part you come to. Attached to the side you'll find small little aluminum part with a small wire harness attached. Unplug it, take the IAC motor off and clean inside with carb cleaner. This should fix the problem with the idle.