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easy water pump check
Posted by Sjer (more from Sjer) on Sat, 6 Nov 2004 06:52:11
In Reply to: Need serious help with cooling system problem...PLEASE!, norm, Fri, 5 Nov 2004 22:48:49
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Disconnect one of the heater hoses. I bet you get lots of water coming out of the heater hose, which will confirm the water pump function is OK. Holding the radiator hose up is not a good way to test the water pump. You are adding static head backpressure, which will lower the water flowrate. Plus, you don't know if the thermostat is fully open.
Replacement of the thermostat should have been automatic based on your earlier problems. $15. It is not worth investigating considering the consequences of a stuck thermostat. They are wax filled. When the wax melts, the expansion compresses the spring and the thermostat opens. After repeated heat/cool cycles, eventually they leak wax out and don't open properly. Get an 82C thermostat Saab or OEM only.
posted by 4.239.183...
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