change the thermosta on 2004 chevrolet impala bc it was running hot..once i put in a new thermostat now when i cranked it up it is making a high idling noise which i'm scared to drive bc of the noise

5

Asked by Jernean Jun 23, 2015 at 03:33 PM about the 2004 Chevrolet Impala FWD

Question type: Maintenance & Repair

1 Answer

102,695

Sounds like you may have a bad Idle Air Control valve. Try unplugging your EGR. See if the high idle drops.

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