My 2002 Buick LeSabre idle fluctuates and dies when coming to a stop. I have changed the air/idle control valve, the MAP sensor and the MAF sensor was changed recently also but the problem still exists. What should I do next?

Asked by Nov 27, 2012 at 11:26 AM about the 2002 Buick LeSabre

Question type: Maintenance & Repair

My 2002 Buick LeSabre idle fluctuates and dies when coming to a stop. I have changed the air/idle control valve, the MAP sensor and the MAF sensor was changed recently also but the problem still exists. What should I do next?

1 Answer

36,235

Test the fuel pressure while idling and while driving. If the regulator goes bad it will cause high pressure in the system and the symptoms will disappear at higher rpms.

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