92 SL2 engine cooling fan

Discussion in 'Saturn S-series' started by Andrew Stone via CarKB.com, Apr 20, 2005.

  1. Here's the deal...I just bought a used 92 SL2 and have already had to
    replace the radiator. I was driving home from work earlier today and I
    noticed that the temp gauge was almost in the red. I checked the engine
    coolant and the radiator, they were fine, then noticed that the cooling fan
    wasn't kicking on. The relay is ok. I turned on the a/c thinking the fan
    would come on, but no. Everything seems to be hooked up right, and the fan
    isn't binding up at all.

    Could it be possible that the fan motor is blown?

    Does anyone have an estimate on how much a new fan would cost?

    Anything is appreciated.
    Andrew Stone via CarKB.com, Apr 20, 2005
  2. Andrew Stone via CarKB.com

    Lane Guest


    On your '92, you can read the codes from the computer with a paperclip.
    When you do this process, the PCM turns on and runs the fan. Even though it
    sounds like you've already determined yours is bad, it's a 2 minute process
    that may help to further troubleshoot it. You can see instructions on how
    read the codes yourself here:

    Refer to Diagnostic Trouble Code Information, and Diagnostic Trouble Code
    Chart for 1st Gen Saturns. Or, I've heard that you can stop
    by any Auto Zone and have them read the codes for no charge.

    Any Haynes or Chilton manual will give additional info on what each code

    I have no idea what a dealer's parts department charges for a replacement
    fan motor, but it surely would be more than a salvage yard or eBay.

    Lane [ lane (at) evilplastic.com ]
    Lane, Apr 20, 2005
  3. Andrew Stone via CarKB.com

    Mike Guest

    Sounds like the typical CTS (coolant temp sensor) problem. Not the one for
    the gauge, the one for the PCM. This signals the PCM for control of the fuel
    injector pulse width, based on engine temp. The problem is more noticeable
    when it is cold outside by making the car hard to start. This same PCM
    signal turns the rad fan relay on and off.

    If you check codes there is a code for both hi and lo CTS output. (Code 14
    and 15)

    You can also apply 12V to the Black/Pink wire at the fan connector. If the
    fan runs, suspect the CTS as this is known to be a common failure. Very
    cheap and easy to replace.

    Mike, Apr 21, 2005
  4. Andrew Stone via CarKB.com

    Mike Guest

    The fan motor is easy to replace. I had a winding fail on my 92 SC.
    It cost $25 to get a new one form the local parts store.

    Mike, Apr 22, 2005
  5. Andrew Stone via CarKB.com

    B. Peg Guest

    My fan failed as determined by the pink wire jump. Took it to the dealer.
    Bill was for $175 as I recall, parts and labor.
    No doubt parts store will be less than dealer parts. When I tried to get the
    thing out I couldn't figure out the puzzle well enough (seemed too large for
    the opening) so I turned it over to them. It was a simple "Wait right here
    and we'll have it right back to you" project.
    B. Peg, Apr 22, 2005
  6. Andrew Stone via CarKB.com

    Kirk Kohnen Guest

    The fan motors are wear items. They have non-replacable brushes in them.
    When those wear out, it's time for a new motor.

    A 92? I'd bet that it's time for a new motor.

    About $80 from the dealer if I recall correctly. I've had good luck with
    dealer fan motors. I've had bad luck with "lifetime" warranty motors.
    (Lifetime - yeah. Lifetime of a fruit-fly!)

    My 2ยข
    Kirk Kohnen, Apr 26, 2005
  7. OK. I've got it figured out for now. The ground cable is fried somewhere,
    can't figure out where, but that's all it was. I replaced the motor for
    about $30. Fan still did not work. Took it to a buddy of mine and together
    we got the fan hooked up to where I turn it on manually through an on/off
    switch on the dash. it's a fix for now, haven't had any problems with the
    fan since. I just thought I'd post the results.
    Andrew Stone via CarKB.com, Apr 27, 2005
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