Question about 1994 Oldsmobile Eighty Eight

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First check to see if the fuse and relay are ok. next run a wire from battery to connection on fans to see if fans are ok, positive on battery to positive wire on fan. you may have to ground it out. if fans do not work and all is ok, then the fans need replacing. could be a bad tempurature sensor not letting fans come on.

Posted on Apr 29, 2010

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Thermostatic senor no good.

Cheers, Timo.

Posted on Apr 29, 2010


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Cooling fans are not coming on, what could be the problem?

Either the temp sensor is bad, or the relay is bad. or the fan motor is bad. Or you have a blown fuse.
Look for fuse first.... To test if fan motor is bad disconnect the connector to the fan and jumper it to the battery.if it spins it's good. the other two. use a component locator to find their location and replace. they are inexpensive. Temp sensor is in the cooling circuit (radiator...maybe next to thermostat) the relay will be in a fuse box under the hood.

Oct 25, 2012 | 2003 Suzuki Aerio

1 Answer

I have bmw that is over heating i change water pump and radiator and still overheating so i'llgoing to put thecilinder head apart and i would like to know how to do it

I am not familiar with your specific car but before you pull the head consider the following: if it overheats the first thing to check is make sure the coolant level is full. Next check the thermostat. Next you should know some cars can hold quite a bit of air in the cooling system. With a cold engine open the radiator cap and slowly add a 50/50 water/coolant mixture until the radiator is full. With the heater level switched to hot, start the car and watch and see if the coolant level drops it may take a while for the air to move out. If the coolant level is full but it continues to overheat then I would suspect the water pump is not moving the coolant thru the system or the electrical cooling fans (assuming you have them) are not coming on. If the car has electrical cooling fans and they are not coming on when the car is over heating you may have a sensor problem or a power problem. If the electrical cooling fans turn on but the car overheats although the coolant level is full I'd suspect the water pump and/or a radiator that needs to be flushed. IF you are convinced it is the head gasket you should verify that before going to the trouble of replaceing it. Does you car produce lots of white smoke out the exhaust when running? Do you have water in your oil (oil looks milky white)? Do you have lots of air bubbles erupting out your radiator cap when the engine is running? These are all signs of a blown head gasket. If you are going to go this yorself go to autozone and see if they have a HAynes manual for yor car. It will save you endless hours of pain

Feb 21, 2010 | 1997 BMW 318

2 Answers

1997 polo overheats even after removing thermostat

On a water cooled engine... the impeller on the water pump is no longer working correctly. It has probably come loose from the input shaft and is no longer pumping water. You can prove this on a warm engine by filling the radiator to the top and then accelerating / decelerating the engine... if you don't get a change in the water level the water pump is shot.


Feb 21, 2010 | 2001 Volkswagen Golf

1 Answer

Soon as i turn on my heat my cooling fans come on first

It sounds like you do need a thermostat with your heat shut off and the gauge will raise a little then the car doesn't have that heat drawn from it indicating that you most likely do need a thermostat. As far as the fans coming on immediatly that could be a different problem it is most likely the coolant temperature sensor that tells the fan's when to come on. If this sensor says the coolant is hot the fans will come on immediatly. These are seperate problems as the coolant temperature sensor does not have anything to do with the cabin heating system. You should first check the level of your coolant is full, This could also cause your cabin heating system to perform poorly, and may have adverse effects to the engine cooling system. (fans)

Dec 31, 2009 | 1995 Nissan Maxima

1 Answer

Aztek over heating cooling fans not coming on the

temp gauge working proprely?turn on ac both fans should kick on after a few if not replace it

Jun 20, 2009 | 2001 Pontiac Aztek

3 Answers

Car overheatswhen it's in park

U may have a problem with the electric cooling fan for the engine cooling system, have it tested for proper operation. Have u had this car long? keep in mind that the cooling fan does not come on until about 230 Degree's Fahrenheit, that well on the way to hot on your engine temp guage.

Mar 04, 2009 | 2001 Chevrolet Cavalier

2 Answers

Cooling fan always comes on after the car is turned off

this is normal. The fans are thermostatic controled. When you park your car and the engine is not running and not circulating water the temp. will come up and the fans will come on and cool the water down. Make sure you check your water level in the radiator and expansion tank. AFTER the car has cooled down.

Nov 23, 2008 | 1993 Honda Accord

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