Question about 1997 Chevrolet Blazer

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My 1997 blazer idles real high all the time, costing me gas. what sensor would control this problem. Is this sensor inside the motor or on the block or manifold.

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Check your IAC (Idle Air Control) valve or MAF sensor.
CLICK HERE to read more.

MAF sensor is located Under hood, driver side, front engine area, behind air cleaner housing, mounted in air intake duct. $175 new $100 remanuf.

IAC is $84.99 and should be on top rear of engine - driver's side


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Posted on Jul 13, 2009

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Its an ODB 1 system but i would try replaceing the ICA idle air control sensor it controls the idle speed at higher speeds you wouldn't notice a problem and the sounds like the condution you seem to have

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Sounds like water/debris in the gas tank. Try adding dry gas to the tank. Changing the fuel filter also a good idea.

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