Question about 1997 Pontiac Trans Sport

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Engine over heating/ no inside heat

The engine temp. raises rapidly only two miles down the road. There is also no inside heat. It only blows ice cold. I did replace the thermostat in the engine. This did not make a difference. Any other suggestions?

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  • Anonymous Dec 15, 2008

    I have the same problem with my 1997 Trans Sport. The problem I have is the engine overheats. All the coolant drains into the reservoir leaving none in the engine. I did have the thermostat replace and the problem is still there. I had the rad flushed using a pressure pump which puts new fluid in the system while the old coolant gets is pumped out. Problem still there. I thought maybe its a faulty thermostat and was going to change it again, but I'm not sure if I will do this just yet. It seems like I keep dumping money into this van. Maybe just time to change.

  • rc4extreme Dec 30, 2008

    i have the same problem on my 97 pontiac transport, coolant have been flushed / refill twice, still have same problem.i even took the thermostat off the engine and tried it without it.

  • Anonymous Jan 14, 2009

    What happened when you took the thermostat out of the engine? I was thinking of doing that myself. Is it possible it might be the water pump?

    I was told by a mechanic that the head gasket needs to be replaced. I just don't know what to do now. I'm currently looking for another vehicle to buy.

  • shawnn44 Feb 01, 2009

    my heater blows hot and cold air off and on and my new thermostat temp is all over the place my temp gauge went all the way to overheat the other day and i pulled over to check, and my resovoir was really full.i had some leaks and i added some stop leak mabey this has blocked somthing?



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check hoses for leakage

Posted on Nov 27, 2008


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