Question about 1997 Buick LeSabre

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No heat thermostat location

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If you have no heat in your vehicle then it is probably the heater core which is just a small radiator that sits behind the glove box. The thermostat itself is probably located where your top radiator hose connects to your engine. It is an easy and cheap fix, just pull the hose away after undoing the clamp and you should see it. If it is not there, then it will be in the bottom hose. Hope that helps you out.

Posted on Apr 20, 2013

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In order to determine why there is no heat, you will need to look at a number of different factors, since there are a number of reasons that could be why you have no heat. The thermostat might not be opening correctly, or the hose to the heater core might be plugged/blocked not allowing hot coolant to enter it and provide heat, or your heater blower motor might not be working, which blows the heat off the heater core into your vehicle. This could be attributed to a bad motor or a bad heater blower motor relay switch, which allows the motor to activate. Or you might have a bunch of debris that's clogging up the air tubes that the blower shoots air through. Before you just start replacing parts one by one hoping to get lucky, analyze the situation as best you can to eliminate false possibilities. You can google stuff like "symptoms of bad thermostat" "symptoms of clogged heater core", etc. and match up all of these symptoms, figure out which ones match your situation, and pare down to the likely culprit.

Posted on Apr 20, 2013


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