Question about 1988 Chevrolet K1500
Posted by Anonymous on
Most auto parts stores will scan your on-board computer to see if there are any error codes stored there. Call them first; this service is normally free. That may tell you if a particular sensor or device is or has failed.
Posted on Nov 15, 2009
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Jul 26, 2014 | Cars & Trucks
Engine stalls or RPM
fluctuates at idle up and down or dies near idle.
This problem is commonly caused by a dirty automatic idle speed control valve and throttle valve but always run a OBD2 fault code as well as the cleaning procedure. 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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