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rggerger
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If Cooling fans work on my 1999 grand am why when it overheats don't they turn on?
The cooling fans turn on utilizing a temperature sensor and a relay. When the engine gets to a certain temperature the temp sensor closes and the cooling fans come on. Check fuses first. If you have a 12 volt test light, hook up the test light to the connector that goes to the cooling fans once the engine is warmed up and see if the light comes on. If it doesn't, the problem is in the power to the fans, check fuse, sensor and relay. If the light comes on and the fans don't, check for a proper ground (usually a green or black wire attached to a lug and bolted to the car chassis.
How do you test fans on a 2000 Malibu?
on cooling fans disconnect wire at fans,runwire from fan side to positive on battery!!run another wire to ground. if they are ok they will run!!if not it can be bad fans or a bad fan sensor!!check for bad fuse!!first
97 Oldsmobile aurora cooling fans wont go on and fans test OK and fan relay OK and fans do not run with AC set on so what do you check next?
Fuses. If fuses OK, read PCM datastream.
What repair is needed on a 97 Plymouth Grand Voyager when it sounds like water boiling?
Are you loosing water and if so you will need to pressure test the cooling system. Repair any leaks and replace the thermostat. Then check your cooling fans for proper operation.
How do i get the cooling fan to work if it's not the fan motor fuse or cooling relay switch?
Make sure it is not the temperature sensor, somtimes when they fail it wil never turn on the fan. If you can test the fan to make sure it actually works. You can usally test the fan motor to see if it work by turning the ac on, which wil automatically turn the fans on by default.
Why would the cooling fans not work on a 94 Saturn sl1?
Saturn Shop Foreman here. Cooling fan relay, bad temp sensor, open in fan motor, if you jump last two terminals in the diagnostic connector you should hear the relay click, you can put a test light across the fan plug to test the circuit after you have done this, hope this helps
Why is your 1996 cadillac sedan deville keeps running hot when you sit in traffic or if you drive for a long period of time then stop what could it be?
check radiator cooling fans not working. Will turn on automatically when the proper temp is reached. Fans should go on IMMEDIATELY when the A/C is used. Set temp to 65 to test
What is nominal cooling capacity?
Nominal cooling capacity is the suppliers or manufactures equipment rated capacity based on the test conditions. Test conditions always varies to design conditions, therefor in most cases the Nominal cooling capacity is more than the design or actual cooling capacity.
2004 Chevy venture cooling fan will not come on?
Hi, The cooling fans in these vans are controlled by the engine computer, which controls 3 different relays to turn the fans on at low and high speeds. There are also a couple of fuses that supply power to the fans. So you have a few things to look at. The relays and fuses are all located in the fuse box that is under the hood. I would start there, using a multimeter to check for power at both sides of each fuse. There should be a label inside the fuse box that will help you locate which fuses to test and which relays are used for the fans. I have provided a link that describes the system and shows how the system is energized when the fans are on low and high speeds. Good Luck, Greg
Where can I find the crash test ratings for Mazda cars?
There are many great sources on the Internet where you can find the crash test ratings for Mazda cars. Here are two good ones, www.internetautoguide.com and www.motortrend.com.
How do you do a pressure test on a 1999 Sunfire?
Pressure test ?? Cooling system? A/C? Fuel Pressure? Compression?
How do you test cooling fan in a Mercury Mystique?
Perform a functional test with an automobile scanner is the easiest way.
