Cooling Fan Troubleshooting - Saab 9000 Bulletin Board - Saabnet.com
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Cooling Fan Troubleshooting
Posted by Jacob [Email] (more from Jacob) on Sat, 15 Aug 2015 12:10:56
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Hi All,
I've been through many of the cooling fan posts here - I'm guessing I have a temp sensor or EDU problem - I've got a 1996 Aero.
Cooling fan is not coming on at all regardless of engine temp. Here's what I've done so far.
Fuse check is good.
Checked the relays - The fan turns on when I jumper the high speed relay. When I jumper the low speed relay, I get nada. Does this mean in addition to other problems the low speed resistor is likely shot too?
I unplugged the temperature sensor (the one coming from the drivers-side of the block. I though this was supposed to kick on the as default if it was unplugged, by I didn't get anything (this was on cold startup).
Thoughts on next steps here? Do I need to replace the resistor and temp sensor and then re-evaluate if the EDU is to blame?
Thanks for any thoughts.
posted by 73.15.160...
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