Question about 1993 Buick Century
Vacuum Hoses for leaks, broken or loose fittings
IAC Sensor (remove sensor, clean housing and sensor, use a rag wet with carb. cleaner do not apply cleaner directly to the sensor or housing) to clean the housing use a flat screw driver and wrap the rag around it. Do not use excesive force, and make sure not to scratch the housing walls.
Check TPS make sure is not sticking, remove and clean using same procedure as for IAC sensor.
TPS - Trottle Position Sensor
IAC - Intake Air Control Selenoid
Posted on Jul 21, 2010
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Posted on Jan 02, 2017
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