Question about 1999 Dodge Grand Caravan

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Overheating fan not working for cooling system.what can i do on my own for it? to trouble shoot the prolems

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Check your fuse box were it says fan and switch that fuse you can buy fuses at a gas station

Posted on Jun 23, 2008

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Posted on Jan 02, 2017

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2 Answers

Its a 2000 chevy metro that overheated. there are no leaks and the coolant levels are full. its still overheating on short drive and smoking. is it a head gasket? cylinder? water pump? thermostat??


It could be a number of things. You need to have your cooling system trouble shoot. It could be something simple as a stuck thermostat or as extreme as a cracked head. You will need to find a mechanic that has a thorough understanding of cooling system operations.

Aug 22, 2017 | Cars & Trucks

1 Answer

92Escort. Cooling fan wont come on when temp goes up


Check cooling fan relays ! Or the fan it's self is binding up . Go on you tube an check out electric cooling not working . It will show you how to trouble shoot .

Nov 22, 2015 | Cars & Trucks

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Cooling fan is acting strange car is heating some when idling how can I trouble shoot or fix


It is normal for a temperature gauge to fluctuate when the car idles, you will notice 20 to 50 degrees bounce. As long as it is not going into the red or blowing steam don't worry about it.

Oct 26, 2015 | Cars & Trucks

1 Answer

Code P0481


Both radiator fan relay's ????? There are three relay's !
DTC P0481Cooling Fan Relay 2 Control Circuit
Circuit Description
Output Driver Modules (ODMs) are used by the PCM to turn on many of the current-driven devices that are needed to control various engine and Transaxle functions. Each ODM is capable of controlling up to 7 separate outputs by applying ground to the device which the PCM is commanding on. DTC P0481set indicates an improper voltage level has been detected, which controls the Cool Fan 2 and Cool Fan 3 Relays.

Check cooling fan maxifuse 15 amp. This fuse supply's B+ voltage too cool fan relay's 2 & 3 control side . The PCM supply's a ground to energize these two relay's , the PCM is not seeing the correct voltage that it should be . The fuse could be the problem , an open circuit , the transistor or driver as GM calls it output driver module . The number 1 relay is working fine , with A/C on # 1 relay is turned on or energized by the PCM for low speed operation .
There is a good video on youtube on how this three relay cooling fan system works an how to trouble shoot .
Relay Driven Dual Cooling Fan Diagnostics

Nov 03, 2017 | 1999 Buick Century

2 Answers

Car is overheating while idling.


Your radiator fan is probably failed. Pop open hood, watch temp rise, once past "normal " level teh fan should turn on. If not, you need to trouble shoot the rad fan. There should be heavy duty fuses and relays under the hood in an electrical distribution box. You should consult the owners manual or chart on the box lid. Of course the fan maybe bad itself. You can also try - turn on the AC, this will activate the 2nd (booster) fan, and should help prevent serious overheating but wont fix the underlying problem.
Good luck

Jul 13, 2011 | 2003 Chevrolet Blazer

1 Answer

2005 chevy equinox do my radiator and condensor


Hello: You may have a cooling fan(s) problem. Start the truck, turn the a/c on max, both fan and a/c control. Open hood the cooling fan(s) should be running. If not then you will need hands on trouble shooting. It could be fan(s) motor(s), relays, relay control, ie PCM, wiring, fuse etc. Systematic hands 0n trouble shooting will be needed with a upscale scan tool.

Jul 05, 2011 | 2005 Chevrolet Equinox

1 Answer

My car overheated the other day bc i was in stopped traffic for about 45 min to an hour i put anti freeze in it and hasent overheated since what could be the problem??


It sounds like you put your cooling system to the test.
If you have an older car, it may be that the cooling system needs to be flushed to improve the cooling. It could be worn impellers on your water pump which could make it hard to keep the coolant moving fast enough to keep things cool.
You could also have a Thermostat that stuck for a while.If your drive belt for your water pump is worn or the idler tension is low, then the water pump may not have spun efficiently. It could have also been a malfunction with your cooling fan operation....as you see cooling systems can be compex to trouble shoot.

I hope this has helped more than confused

Nov 30, 2010 | Hyundai Tiburon Cars & Trucks

2 Answers

How do I trouble shoot overheating on 1996 2.4 chevy cavalier The cooling fan does not turn when temp is above 195 degrees


check your fuses on your fan.the fuses are located on the drivers side of the dash you will need to open the door for you to access them. if there is a blown fuse replace it and see if this fixes your problem. if it does and you are still over heating turn the heat on full blast and see if the temp goes down if so than you need to replace the thermostat. if there are no fuses blown than you need to check the plug on the fan unit to make sure it has not come disconnected.

Aug 20, 2009 | 1996 Chevrolet Cavalier

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