Question about 1994 Cadillac Seville
The engine idle goes up and down all by itself ,can be a problem at red lites an stop signs
Have a 1994 Cadi Seville has idle problems when I stop, Does anyone know where are the air sensors
Posted on Aug 17, 2011
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Posted on Jan 02, 2017
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Sep 19, 2013 | 1998 Cadillac Seville
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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