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Old 09-07-2002, 11:49 AM
Kestas Kestas is offline
I told you so!
Join Date: Jun 2002
Location: Motor City, MI
Posts: 2,804
Check the coolant level. If the temp sending unit isn't bathed in coolant, it'll shoot up when steam hits it. Same thing with a blown head gasket... if combustion gases hit the sending unit it'll behave erratically. Do you notice any overpressure conditions in the cooling system or bubbling in the radiator?
95 E320 Cabriolet, 140K
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