...cold immediately) Check the magnetic clutch is engaged on front of a/c pump, have the motor running, a/c on and fan on high, if the centre hub is static the pump in not switched on, this can happen ...
...pump, No heat in 98 jimmy. Replaced water pump, radiator, hoses, thermostat, actuator door, and flushed heater core still no heat. Automatic ac when on heat does not blow out front vents at all and ...
heat on these models.The bulletin number is 05-01-37-002A.The part numbers are 89024885 for 4.2 engine and 89024886 for the v8 engine.It is an auxiliary pump the helps the coolant flow to the rear.The
Question about Air Conditioning and Heat for GMC Yukon
...blows heat but the rear blows cold. Sometimes the left is blowing the opposite temperature that the right side. Sometimes everything is correct. sometimes the snow falls down in june, sometimes the ...
pump, and radiator, flushed cooling system, still no heat from heater. I am confussed???? Flapper door inside duct work most likely stuck open not allowing heat to come thru the heater core. GMC? this
Question about 1997 Jimmy
...pump, rad cap, and thermostat but still getting gurgling in my heater core. i flushed the whole system out with flush kit. the next day it overheated and blow antifreeze everywhere. its on a 1997 bmc ...
Question about 2000 Sierra
when the heat is on it blows cold air and the heat stuck on one time in the summer sometimes it blows hot air and sometimes it blows cold air Behind the glove box
Question about 1989 Sierra
...the water pump is good, it should give heat this valve should be on the intake with a heater hose connected to it..and its vacuum operated but will jam shut with age and cold weather..good
Question about 2001 Jimmy
...the overflow and the temperature is still going above normal and turning the heat on will still only put out cold air. Any suggestions as to what the problem may be? sounds like water pump is ...
heat loss in my truck i gradually lost my heat.just blows cold air now SOUNDS LIKE HEATER CORE IS PLUGGED. SOMETIMES YOU CAN CLEAN BY FLUSHING COOLANT SYSTEM
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