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Discussion Starter · #1 ·
I noticed the temp gauge moves a lil north and south while driving and stopping in traffic. Also I noticed today when I backed it up to park it, the dash "HOT" light came on, and then it went off and quickly cooled down.. Thermostat?
 

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Maybe. Also, could be the coolant cap. Have the system pressure tested.
 

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What Grandpa said.
 

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Discussion Starter · #4 ·
Pressure test revealed....

That there is a small hairline crack on the top of the resevior, causiing the heating issue.. cwm6
 

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That will do it....pressure in the system allows for running higher temp's without boil over. Lower pressure = lower boiling point.
 
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