Mechanics

2.5L ERATIC DASH TEMPERATURE GUAGE

1993 Plymouth Acclaim • 4 cylinder 2WD Automatic • 250,000 miles

I had a new rad (1 week old) put in and 2 new different rad caps. 2 new thermostats, new coolant, 8 month old water pump installed. After driving driving a distance the temp. Gauge starts fluctuating from to 1/4 to just below 1/8 mark on the cold side range. When I open up the hood and leave the car running, the rad cap is warm and it seems that there is no pressure build-up in the radiator because I am able to open it without the coolant squirting out. Some people tell me that it is a head gasket problem but I am not sure. Because I there is no external leak and no white, sweet smelling exhaust coming out of the muffler. Does anyone have any ideas? Any input would be very much appreciated.
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Wowie
December 30, 2010.




Use a cooling system pressure tester, Autozone will loan it to you, this will reveal any leaks quickly. You can also get a block test kit there, this will tell you if hydrocarbons are present in the antifreeze, this would indicate a head gasket problem.

Merlin2021
Dec 30, 2010.


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