Question about 1996 Oldsmobile Cutlass Ciera

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No heat 1995 cutlass ciera

I have no heat. My fan is not working. Is this the reason or would it be the thermostat? My car temp. gage shot up in the red then i put antifreeze in it and it stayed half way. any help??

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  • carendam Jan 26, 2009

    thanks guys! no the fan does not work at all. There are no leaks. The smoke is white like when the car is cold.

  • carendam Jan 27, 2009

    Hi everyone and thanks for the help. The blower fan was a fuse. I had to burp the radiator. Now the heat works fine. Thank you!!

  • Roberta Smith
    Roberta Smith May 11, 2010

    ok first the fan.... does it work on any speeds at all or not at all.

    any antifreeze leaks that you can see.. look on the ground where you park it as well

    What colour is the exhaust smoke ?



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White smoke tends to indicate a blown head gasket

Posted on Jan 26, 2009

  • Roberta Smith
    Roberta Smith Jan 26, 2009

    as for the fan... turn it on at the switch and tap it very gently with a hammer .... does it come on... if so you need to replace the fan... if not it is likely the resister block.

    As for no heat... feel the inlet and outlet hoses on the heater core... are they both hot ?. if not the core should be back flushed to see if it's just debris... if that still does not work the heater core needs to be replaced...



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Ok quick fix........
This is a common GM problem. The heater will stop operating when the plastic vacume line is broken under the hood. It is an 1/8 inch black plastic vacume line running fron the intake manifold to a vacume check valve under the hood to the heater/AC assy located to the passenger side. You may also want to check the fuses under the dash to the blower motor. If the fuse is good take a Digital multi meter and check for voltage at the motor. If there is no voltage check the reistat in the blower hosing. It is a small rectangle plastic piece on the blower housing with two small screws. Check for voltage at the input and output side. If there is voltage check for resistance at the motor by unpluging the blower motor and probing the terminals to the motor. Tap the motor and see what type of fluctuation you get. Lastly if all that checks out and you have no voltage to the motor or reistat check the switch input and all three fan speed outputs. It could be a simple switch issue.
Good luck and let me know if you need further guidence.


Posted on Jan 26, 2009

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