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92 SL2 engine cooling fan
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CarGuru > Saturn > 92 SL2 engine cooling fan 27 April 2005 09:22:59

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92 SL2 engine cooling fan

Andrew Stone via CarKB.com 20 April 2005 08:13:38
 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.
Add comment
Lane 20 April 2005 16:41:50 permanent link ]
 Hi,

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
to
read the codes yourself here:

http://www.differen­tracing.com/tech_art­icles/index.html
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
means.

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 ]
---
Visit my Saturn Car Audio and Performance Page at http://www.evilplas­tic.com



"Andrew Stone via CarKB.com" <forum@nospam.CarKB­.com> wrote in message
news:70ac9536d67e40­24bdd3b36f4bba002f@C­arKB.com...> 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
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.


Add comment
Mike 21 April 2005 04:10:04 permanent link ]
 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.

"Lane" <lane@NOSPAMevilpla­stic.com> wrote in message
news:M5s9e.4984$Ah5­.2285@fe05.lga...> Hi,>
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> to> read the codes yourself here:>
http://www.differen­tracing.com/tech_art­icles/index.html> 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> means.>
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 ]> ---> Visit my Saturn Car Audio and Performance Page at > http://www.evilplas­tic.com>
"Andrew Stone via CarKB.com" <forum@nospam.CarKB­.com> wrote in message> news:70ac9536d67e40­24bdd3b36f4bba002f@C­arKB.com...>> 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.>


Add comment
Mike 22 April 2005 03:35:42 permanent link ]
 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" <mikemartin123@nosp­am.sympatico.ca> wrote in message
news:qbC9e.11192$Jg­5.781739@news20.bell­global.com...> Sounds like the typical CTS (coolant temp sensor) problem. Not the one for > the gauge, the one for the PCM. This signals the PCM for control of the > fuel injector pulse width, based on engine temp. The problem is more > noticeable when it is cold outside by making the car hard to start. This > same PCM signal turns the rad fan relay on and off.>
If you check codes there is a code for both hi and lo CTS output. (Code 14 > and 15)>
You can also apply 12V to the Black/Pink wire at the fan connector. If the > fan runs, suspect the CTS as this is known to be a common failure. Very > cheap and easy to replace.>
"Lane" <lane@NOSPAMevilpla­stic.com> wrote in message > news:M5s9e.4984$Ah5­.2285@fe05.lga...>> Hi,>>
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>> to>> read the codes yourself here:>>
http://www.differen­tracing.com/tech_art­icles/index.html>> 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>> means.>>
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 ]>> --->> Visit my Saturn Car Audio and Performance Page at >> http://www.evilplas­tic.com>>
"Andrew Stone via CarKB.com" <forum@nospam.CarKB­.com> wrote in message>> news:70ac9536d67e40­24bdd3b36f4bba002f@C­arKB.com...>>> 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.>>


Add comment
B. Peg 22 April 2005 05:18:33 permanent link ]
 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~


Add comment
Kirk Kohnen 26 April 2005 04:52:03 permanent link ]
 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 2¢

"Andrew Stone via CarKB.com" <forum@nospam.CarKB­.com> wrote in message
news:70ac9536d67e40­24bdd3b36f4bba002f@C­arKB.com...> 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.


Add comment
Andrew Stone via CarKB.com 27 April 2005 09:22:59 permanent link ]
 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.

--
Message posted via http://www.carkb.co­m
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CarGuru > Saturn > 92 SL2 engine cooling fan 27 April 2005 09:22:59

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