ive replaced heater care water pump all heater hoses thermostat three times flushes the system intake gasket and still have no heat switches work blower works thermostat opens at 210 no over heating

Asked by Nov 19, 2016 at 06:01 PM about the 1996 GMC Sierra 1500 K1500 SLE 4WD Extended Cab Stepside SB

Question type: Maintenance & Repair

does anyone have any ideal what could be going on

1 Answer

10

Try to locate the highest point in the cooling system and while its running try and bleed any trapped air out of the system that would be the first thing I would do if you still have a problem after that post more info on the problem like does blow bubbles into the recovery tank? what temp is it running at? does it build pressure in the system very quick? engine warm rad cap off look in the rad and see if water is moving thu the system when you slowly rev the motor a little good luck TheDynoGuy 5 x master ASE tech

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