Car surges when warm idling

2001 CHEVROLET MONTE CARLO
141,156 MILES • 3.8L • V6 • FWD • AUTOMATIC
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FRANK WAGNER
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  • 1 POST
Car runs great until it warms up. Then whenever I come to a complete stop it starts surging, to the point where I haft to power brake it and hold it at about 1000rpms to keep it from stalling.
I have replaced the maf sensor so far. I'm about to replace the fuel pressure regulator,to see if that helps. Doesn't feel like a fuel pump. Could replace filter?
Jan 5, 2016 at 8:50 AM
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HMAC300
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  • 48,601 POSTS
try cleaning the throttle plate on both sides and iac hole with choke cleaner
Jan 5, 2016 at 9:23 AM