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SoCal Driver SoCal Driver is offline
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Join Date: Feb 2002
Location: Costa Mesa
Posts: 8,587
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The 944 heats up fairly quickly. The most common failure is the temp switch in the radiator. On the early 944's it's as much the wires coming lose and corroding as it is a switch failure. Next is the thermostat in the water pump. A loose timing belt will not drive the water pump at speed especially if there are oil leaks from the front seals.

Then toward the less common failures are the fans themselves. These are three blade units on the early 944's. They also have an unsealed front bearing that will seize up. This burns out the motors and blows the fuses. Fuses 3 and 5 on the 8 fuse board are for the cooling fans. The relays can fail. See http://www.clarks-garage.com/shop-manual/cool-01.htm or http://www.clarks-garage.com/shop-manual/cool-03.htm for more information
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Hugh - So Cal 83 944 Driver Person
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Old 07-25-2004, 03:20 PM
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