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Old 04-05-2011, 09:26 PM   #1
mbyer005
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Default 2000 Saturn SL2 fan

Hey guys, just seeing if maybe I can get some help on here, I am a mechanic in the marines and have a bunch of mechanic buddies and we can't seem to figure out the problem. I'm tryin to figure out whats goin on with my sisters car, a 2000 SL2. It keeps blowing fan fuses and the temp gauge will show an overheat if she is sitting still. Once she starts moving again, the engine will cool off so I assume that she has good coolant flow, just not enough air is getting through the radiator since the fan isn't working. I had a 1994 SL1 and when it did the same thing, all I had to do was replace the fuse and it fixed the problem, but hers the fuse just blows again. The fan itself is good and isnt seized up or anything, I have been told to check the temp sensor on the back of the engine and see if it or the sending unit is malfunctioning. Any ideas? Thanks

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Old 04-05-2011, 09:55 PM   #2
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2003 L-Series 3.0L Sedan
Default Re: 2000 Saturn SL2 fan

Disconnect the fan harness and the fan relay. Replace the fuse.

1-Does the fuse blow? Yes, its a power short in the fuse box.

2-Fuse not blown? Replace the fan relay back into the fuse box.
a)Fuse blown? Yes, its a relay short. No? Its either a short in the wiring going to the fan or the fan is shorted internally.

You can try this but I'm not sure it will work; pull the coolant connector off and turn on the ignition. The temperature needle may move to the center position; this may indicate the pcm sensed the coolant disconnected and default by moving the needle to the 1/2 position and turn on the fan. Measure the fan connectors for 12v. If you see 12v on the fan connectors the fan is shorted. Replace it.

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