Questions & Answers for: gmc heater blowing cold

gmc jimmy heater problems Disconnect the heater hoses from the water pump and the intake manifold. Get a compressor and blow out the hose (put the air hose into the the hose that came off the mainfold

...GMC Yukon blows cold air from the front, rear works fine Front vents only blows cold air, rear vents operate correctly (blow hot and cold air based on setting). I have checked hoses running to heater ...

...heater 1995 GMC suburban 350 1500 4wd temp gauge pegs high, but heater blows cold. Sometimes the temp returns to normal, and heater blows hot. Thermostat? Blockage? Sounds like there may be an air ...

...heater blows cold in my 1989 GMC 350 engine. The thermostat has been changed, the fan blows. I can hear the door opening. The engine comes up to temp. Are the hoses to the heater core supposed to be ...

...heater blowing cold? http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html --------- Heat blows cold on drivers side and hot on passenger side? ...

my 2000 gmc jimmy blow cold air heater The heater blow cold air when you turn it on never get hot common for this vehicle to have clogged heater core

...GMC Envoy goes from blowing warm air to cold to warm to cold when on warm air setting. Loaded Envoy with climate control. Any ideas? heater core plugged. remove heater hoses, use tap water to flush ...

Heater blows only cool air...even w/ defroster on : Buick ... repairpal.com > Problems > Buick > LeSabre ... Cadillac, Chevrolet, Chrysler, Dodge, FIAT, Ford, Geo, GMC, Honda, Hummer,Hyundai, Infiniti

1992 GMC 5.7 4x4 k1500 hearted blows cold Warm truck up trun on heater blows cold air put in radiator Check flaps in heater box under dash.

...99 GMC Savana the blows cold in front but warm in back. DO you know what could be the problem Heater blows cold in the front an warm in the rear ????? What do you have it set on ???? A/C or heater