Question about Chevrolet Silverado 1500

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Problem with idle run ruff rich smell . gas milage is good 13 mile to the gallon last tank.

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  • j_melanson Oct 08, 2010

    1995 chev silverado 5.7

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Please provide model and year of your vehicle. Thanks

Posted on Oct 08, 2010

  • Rene J Solis Oct 08, 2010

    Hi!!



    Unplug the electrical connector to the IAC Idle Air Control Solenoid #21 on the graphic and unscrew it off. Using a piece of cloth wet with carb or fuel injector cleaner, wipe IAC solenoid body, then wrap cloth on a pencil or similar object, spray cleaner on the piece of cloth and insert it in the solenoid's housing, make sure the far end of the housing is clean. Reinstall solenoid and electrical plug. DO NOT SPRAY CARB/FUEL INJECTOR CLEANER STRAIGHT TO THE SOLENOID OR HOUSING.



    If a tune up has not been performed recently, it is time for one. Fuel filter, Air filter, Motor Oil and Oil filter, PCV valve and spark plugs must be replaced. Check vacuum hoses for cracks or loose fittings.



    Keep me posted!!






  • Rene J Solis Oct 08, 2010

    This site do not allow images larger than 150k, if you need better quality diagram, please provide and email address to send it to.

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