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I have a 1978 oldsmobile cutlass supreme and when I turn on the heat it blows cold air what can I do

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Replace thermostat on upper radiator hose coupling/housing.

Posted on Nov 24, 2014

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1 Answer

Heater wont warm up on 93 cutlass supreme


If the heater hoses are getting hot, and the radiator is full of coolant, it could be a faulty blend door under the dash.

Jan 03, 2013 | 1993 Oldsmobile Cutlass Supreme

1 Answer

Motor over heats and heater blows cold air


there could be a couple things going on here -- the water pump could be bad and needs to be replaced,, and/or the thermostat is bad and needs to be replaced.

c...

Feb 06, 2011 | 1995 Oldsmobile Cutlass Supreme

1 Answer

My is heat is not work?My car is blowing cold air instead of hot air, I have a brand new heater core,the thermostat is not sticking,I got anti-freeze in it,It's getting cold in I need heat.Please help me


first feel the heater core hoses see if both are hot if so then your problem is in the blend air door must be stuck on cold. is your blower motor blowing cold air if not your blower motor might be the problem. the blend air door is down by the blower motor.

Nov 17, 2010 | 1995 Oldsmobile Cutlass Supreme

1 Answer

My heat is not working


If it is not blowing check your blower fuse first. If it is blowing cold air check your coolant level.

Nov 17, 2010 | 1995 Oldsmobile Cutlass Supreme

1 Answer

No heat heater core is warm fan blows cold


Have you check the vent shut off valve. It's behind the glove box and you may have to manually open it to get heat or air.

Jan 29, 2010 | 1994 Oldsmobile Cutlass Supreme

1 Answer

Air conditioner blows super hot air.


your ac is freezing up try replacing the expansion valve

Aug 17, 2009 | 1992 Oldsmobile Cutlass

1 Answer

No heat coming from heater


heater core is shot most of them are located under the dash board, look to make sure or call a garage they can tell u were its at

Feb 28, 2009 | 1993 Oldsmobile Cutlass Supreme

1 Answer

No heat


water pump has failed.

Jan 04, 2009 | 1993 Oldsmobile Cutlass Supreme

1 Answer

Replaced thermostat but


chances are that you may have a blown head gasket that causes the overheating. look for bubbles in your radiator with the cap off

Dec 12, 2008 | 1997 Oldsmobile Cutlass Supreme

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