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Pontiac Master
4,977 Answers
- Posted on Apr 19, 2011
Re: My heater core was taken off and by passed with a...
Its possible its the thermostat.it could also be the cooling fan not working.these have a problem of seizing causing an over heat problem as well.check to see if the cooling fan is working when the motor gets to operating temperature.it can take longer than 20 minutes to work.
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