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Old 06-17-2009, 10:53 PM
Bio300TDTdriver Bio300TDTdriver is offline
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Join Date: Dec 2005
Location: Ashland, MA
Posts: 2,602
Quote:
Originally Posted by VegStew View Post
Right, Its the 90 300d. Its the temp switch for the aux fan (on top of the engine where the upper radiator hose connects) to turn on when the car gets up to 105. A quick look at fastlane shows a 3 prong switch. Mine only has 2. I suppose they could have the wrong pic up.
The '87 with the OM603 uses the 3 prong. As you know your car uses the 2 prong. Have you confirmed that the temp send is working? Do you have a IR thermometer you can shoot the switch with?

Have you tried jumping the switch to confirm that the fan(s) work?
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