Question about Oldsmobile Cutlass Supreme

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1990 oldsmobile cutlass supreme heater blend door replacement

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

beest921
  • 23 Answers

SOURCE: cutlass supreme oldsmobile 1990 running hot

Check to see if your electric radiator fan is turning on. These cars are known for the temperature switch that turns on the fan to go bad. Also, a highly overlooked problem, make sure the fins on your radiator and condenser aren't blocked with debris. Shine a flashlight on the opposite side and look through. Good luck!

Posted on Jul 07, 2009

  • 72 Answers

SOURCE: engine running rough

on the side of the valve cover

Posted on Aug 25, 2009

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  • 74 Answers

SOURCE: how do i replace the heater core in a 1983

the heater core is located under the dash board on the passenger side there is a few cap screws holding this black plastic box that hides the heater core loosen all the screws .take the plastic out of the way and u will see the heater core .there are two hoses to disconnect on the out side .under the hood on the passenger side .up near the fire wall .the re is a avaperation tank silver in color for the a/c under that there are two heater hoses to disconnect .when u remove the two hoses .they will leak antifreeze .bend the hoses over to kink them .tie some elec tape around them to keep them from leaking .go back in the car and loosen the four small screws that hold the heater core in place and remove .....in stall the new one the same way .taking care when putting the new one through the fire wall not to damage the brass tubing ...mount heater core first the place hoses on after the screws are holding the heater core in place then put plastic cover on start car and wait for thermostat to open .turn heater on hot .after water is circulating .refill radaitor ...job done...

Posted on Dec 03, 2009

  • 1 Answer

SOURCE: repair 1994 oldsmobile cutlass supreme thermostat

There's a slight anti freeze smell when you turn the heater on. All fuild r full just wander if the heater core leaking. nothing wet inside the car just a smell

Posted on Jan 03, 2010

arauzvictor1
  • 466 Answers

SOURCE: 1986 Oldsmobile Cutlass Supreme vacuum hose

Ok sent you this the engine you have to specify that engine has to help you. Thanks2c36ea6.jpg

Posted on Mar 24, 2010

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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

Where are the trap doors for heating & air conditioning for a 1995 olds cutlass ? I am told that is my problem to my no heat situtaion.I had heat before, I did have to change the heater core &...


Most GM vehicles uses a vacuum to control the hot/cold blend door selector on the AC/Heat. The vacuum line is usually tied to the cruise control .

One thing to check is test your cruise control to see if it still works or not.

I've fixed many ac/heat blend doors by tracing the vacuum hoses and found it to be detached or broken and connected them back and works

Dec 03, 2010 | 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

3 Answers

Type of freon used in 1990 olds cutlass supreme. new or old?


This car uses r12 freon that is the old stuff but you can have your system converted over to the 134a.

Jun 18, 2009 | 1990 Oldsmobile Cutlass Supreme Conv

1 Answer

The indoor handle of the door no longer unlatches the door.


1990 Sutlass supreme will not spark when trying to turn over

Mar 15, 2009 | 1990 Oldsmobile Cutlass Supreme Conv

1 Answer

Cutlass supreme oldsmobile 1990 running hot


Check to see if your electric radiator fan is turning on. These cars are known for the temperature switch that turns on the fan to go bad. Also, a highly overlooked problem, make sure the fins on your radiator and condenser aren't blocked with debris. Shine a flashlight on the opposite side and look through. Good luck!

Mar 14, 2009 | 1990 Oldsmobile Cutlass Supreme Conv

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