Question about 1997 Buick LeSabre
The only reason the voltage light comes on is because it is stalling and the reason the rpm gauge goes up is that is races up and then dies down..Sounds either you have a vacuum leak or a fuel issue..
Posted on Mar 29, 2009
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Posted on Jan 02, 2017
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Oct 30, 2015 | Cars & Trucks
This problem is commonly caused by a dirty automatic idle speed control valve and throttle valve. Buy a can of throttle valve cleaner (do not use carburetor spray cleaner!) from NAPA or Carquest (made by CRC chemicals) and spray it into the air intake while the engine is running, use up about 1/2 the can, engine will try to stall hold the speed up, shut it down and let it soak for 30 minutes, restart and blow out the remaining fluid, shut it down and disconnect the negative battery cable for 5 Min's to reset the base idle control
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