Question about Cars & Trucks
Replaced idle air control valve,and checked throttle plate for sticking,and still have the problem.this only happens when temps are below 30 degrees.have replaced tps,iac valve,temp sensor and 180degree themostat.
The thermostat wont cause this... check the cold start injector. (in the throttle body).
Posted on Feb 08, 2014
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Posted on Jan 02, 2017
Intake gaskets will **** air when cold and cooler weather causing a skip when first start up. this sounds like your problem
Posted on Oct 12, 2010
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Jan 22, 2014 | Cars & Trucks
Sep 19, 2012 | 1999 Chevrolet Blazer
Engine stalling issue at low speeds
This problem is commonly caused by a dirty automatic idle speed control valve and throttle valve. Buy a can of throttle valve 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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