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2001 Chevrolet Blazer Question: Could this be a Throttle position sensor problem? Or something else.

 

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CeeCee1, Sweet Grass, MT, April 25, 2013, 13:58
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idles rough, RPM fluctating , vehicle has stalled at stoplight but restarts right away.

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  • Answer #1

    ebans777 April 26, 2013, 08:24
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    it could be many things. but you can start by replacing fuel filter if over 2 yrs since last filter changed. need to check fuel pressure and check fuel pump.

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  • Answer #2

    innova92614 April 26, 2013, 15:16
     Rookie

    Check the EGR valve. I've seen carbon keep the valve open causing rough/surging idle and stalling

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