Question about 1997 GMC Safari

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97 GMC Safari - best type thermostat, location, temp?

Likely need to replace thermostat, please recommend types, the correct operating temp and location in engine for replacement?

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The owners manual will tell you the temp you should use, but you can also look at the old one when you pull it out as it will have the value stamped on it. As for the brand, most are all okay. I use stant brand since that's what the local parts store carries. To find the thermostat under the hood, follow the top radiator hose to the engine block and a domed housing. It's under the housing.

Posted on Jan 12, 2009


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What is the gmc safari 1997 engine typical temperature

That would depend on the thermostat it has in it. Typically full operating temperature should be 195 degrees.

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Hi, it is likely your thermostat is stuck open. I recommend replacing the thermostat. If you need instructions, please reply with model, year, and engine size.

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Top center behind the top pulley. Follow the upper radiator hose to where it connects to the engine. I've always called that piece that the hose connects to, the gooseneck. So you take the hose off, then you take the gooseneck off and there sits the thermostat. Make sure you scrape off the old gasket and replace it with a new one. Also, don't try to run your van without a thermostat, your gas mileage will drop off the charts. We used to do that back in the day before all the computer controlled stuff when I lived in Florida. If I've helpped you, please remember to rate me. Thanks.

Feb 22, 2009 | 2005 GMC Safari

1 Answer

97 GMC Safari heater takes forever to get warm.

It sounds like your thermostat is bad - it has become worn to the point that it will not close anymore, making the coolant circulate all the time- this is why it takes a long time to heat up, because it never builds heat before the thermostat opens.

Jan 03, 2009 | 1997 GMC Safari

1 Answer

97 GMC Safari Van - Heater takes forever to blow hot air. Could this be a thermostat problem?


Humm I make the assumption that you don't have overheating problems. Yes, sounds like a thermostat is stuck open. If you have a gage on the dash you may also notice that the engine temp takes a long time also. Sometimes when you sit a light for a while the temp edges up and starts to get warm....then when moving down the road a higher speeds the temp cools off again. this does this because the thermostat may be stuck open and it cools the heated water in the engine when moving. Also, check the coolant level in the radiator. (only do this when cold!!!!!!!!) ok????? NOT HOT! low coolant can affect how the heater performs. (low volume)

Hope this helped. :)

Jan 03, 2009 | 1997 GMC Safari

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