Question about 1997 GMC Safari

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Engine does not get to operating temperature

The only time we got the temperature gage to move was when we heated it up with a torch, or put a thermoste in the return line to the rad. Otherwise the engine stays at 70 and we get very little if any heat.

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  • Ben DeVries
    Ben DeVries Nov 18, 2008

    We have done that. There is two in the system and we changed them both. The Van is a 6.5 turdo deisel 3500



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  • 7 Answers

Check that you have a thermostat installed.
It may have been taken out at an earlier date.

Posted on Nov 18, 2008

  • rafferdc Nov 18, 2008

    Check the heater hoses.

    They may have collapsed internally.



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