Question about 1995 Buick LeSabre

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Fan no longer works for heating or cooling what could be wrong?

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Posted on May 05, 2010


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That is what it is supposed to do. There is a temperature switch that opens and closes as the coolant reaches certain temps. When it reads those temps it turns the fans on or off as needed. Your fan circuit is separate from your ignition to allow it to keep the engine cooled down after you shut the car off. This prevents possible damage to the engine due to heat. Today's engine have a lot more aluminum in them and it is affected by heat more so than the old cast iron engines. It is more noticable in warm weather because things heat faster and cool slower. Unless the fans run steady or not at all, you should be okay. Turning on the A/C will turn them on quicker and longer because it makes the engine work a lot harder. Hope this helps.

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I need to replace my thermostat and i can't find where it is I have a 93 Tercel. The car heats up while it's sitting but when I start driving down the road it cools down and doe's not heat up until I stop...

I think ur THERMOSTAT is fine! The prblem of heating up would be the RADiATOR FAN MOTOR, 'cause engine cool down when ur speeding u, means theres a cold RAM AiR flowing in front of ur car and its cooling down the radiator!
You have to go to ur garage mechanic and have them check wuts wrong w/ ur RADiATOR FAM MOTOR!
Nice to help somebody!

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93 Jetta is overheating. Changed the thermostat and the pump is working. On idle the temp stays down, but while driving rises fast.

Check to make sure there is no air in the cooling system,and make sure the cooling fans are working.The cooling fans should come on,on there own,and go off on there own,without the ac or defrost on,make sure they are off.

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How to replace the radiator

I own a 2003 impala had the same problem if your car is over heating first check to make sure the sensor that controls the cooling fans is working if not you should have the sensor replace first. i also had my radiator replace as well but the sensor was the main reason for my car overheating.the sensor controls the fans which cools the radiator which will cause the temp gauge to be in normal range and your car will no longer over heat unless the thermostat needs to be replace.

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You may need to replace your thermostat. This is normal for the fan to run after you turn your car off but if you say its running for 20 minutes or longer, it may mean your thermostat is stuck and causing the fan to run longer to cool off the radiator. Its a good thing for the fan to run. Heat is your enemy. I rather the fan run than no fan at all, if your car overheats, you could blow a gasket or warp your valves and its really pricey if that happens

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