idles rough, RPM fluctating , vehicle has stalled at stoplight but restarts right away.
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2001 Chevrolet Blazer Question: Could this be a Throttle position sensor problem? Or something else.
Answer #1ebans777 April 26, 2013, 08:24Journeyman
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.
Answer #2innova92614 April 26, 2013, 15:16Rookie
Check the EGR valve. I've seen carbon keep the valve open causing rough/surging idle and stalling