rough idle

Asked by Apr 11, 2017 at 07:05 PM about the 2001 Buick LeSabre Custom Sedan FWD

Question type: Maintenance & Repair

rough idle at low rpm

2 Answers


Clean the Mass Air Flow Sensor with a spray MAF cleaner, and clean up the throttle body and the plate also, with some carburetor cleaner. Do not use the carburetor cleaner on the MAF. If there is still a problem the Idle Air Control Valve would need to be taken out and the port cleaned along with the IAC. If there is still a problem then replace the IAC.


Also check for vacuum leaks

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