Mechanics

CHEVROLET CHEYENNE HEATER PROBLEM

1995 Chevrolet Cheyenne • 90,000 miles

I changed my thermostat yesterday, because of the increase and decrease of temperature from the engine. Now the temperature will not rise and heat is very low. Is it a bad thermostat or water pump?



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Guest
February 17, 2013.



Id want to double check your temp gage. Do the heater hoses get hot? You may need to flush the heater core? Another possible issue is a temp door problem, under the dash.

Take the return heater hose loose from engine, bump the starter, any coolant flow? Don't start the vehicle.

JDL
Feb 17, 2013.