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Cooling fan will not come on no matter what I do turned the a/c on nothing new etc nothing if I unplug the etc it will come on for about 5-10 sec then turns off and doesn't come back on the tstat is working and gauge is right fan does work both high and low speed I have it hooked up through a switch right now so I don't overheat but I'd like it back to normal so I don't have to worry about it

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  • 87 Answers

Check the lower radiator hose to see if it is the same temp as the upper hose if it is cooler than you could have a stuck thermostat or blocked radiator what year make and is the car

Posted on Mar 30, 2014

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Posted on Jan 02, 2017

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SOURCE: wipers do not work in intermittent position. They do work in low and high speeds but do not automatically return to the park position. They stop wherever you turn the switch off.

i belive that your wiper switch has gone out on the intermittent side. this is a very common problem.
I hope this helps you
Thanks
Please leave rating

Posted on Apr 21, 2009

  • 1 Answer

SOURCE: 04 Wrangler AC fan only works on high speed (position4).

Its the switch behind the fan nob thats not making contact, you have to pop the cover off the dash where the radio fan and other gizmos are. Then remove the fan nobs by pulling them straight off after that unscrew the housing unit inside is the switch. You must carefully pry this open so as not to break the plastic clips holding it together the switch thats fryed should just pop out easy replacement fan switch! If my mind serves me right it costs 40$ to replace if you order from chrysler.

Posted on Aug 28, 2009

  • 1509 Answers

SOURCE: Both radiator cooling fans won't turn on vehicle overheats

The fans come on only when hot or the AC is on. There are many fuses that have to be good for it to work. The fan relay should have 2 pins hot with the key on, The other 2 should be ground. with the key off one should be hot and the other can then be ground the other pins that are ground one of them is the fan. the other becomes ground when the computer turns the fans on. If you don't have a pin thats hot at the relay all the time then theres a blown fuse or even the power wire from the battery at the battery

Posted on Nov 02, 2009

  • 2841 Answers

SOURCE: Toyota 2000 camry fan only working on high speed

The blower motor resistor pack is defective and must be replaced. The resistor pack controls the variable speeds.

Posted on May 01, 2010

  • 1 Answer

SOURCE: 2001 Chevy Venture Cooling Fans always running on high

Check ur temp sensor the plug it's not plug to it or its bad

Posted on Feb 13, 2013

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1 Answer

Cooling fan stays on after turning off car


Taken from other previous solution (but it's right): the cooling fans are switched off and on by a relay. either this relay bad and staying on all the time, or something else is bad and telling it to stay on all the time. you might unplug the engine coolant temp sensor and see if the fans switch off. if they do you have a bad temp sensor, if they don't you probably have a bad relay. they will test either for you at most car parts stores. the relay will be in the underhood power distribution box, it plugs in like a fuse. disconnect the battery negative terminal before you start unplugging things from the power distribution box. hope that helps

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My cooling fan does not come on--I saw the temp gauge show a rapid increase yesterday. When I got the vehicle home I realized the fan was not running. It usually does for a short while after I turn the...


If I remember correctly, there are two separate fan relays for your car, one for low speed and one for high. If they fans are not turning on at all, even for high speed, then it is likely the motor. The easy way to check is to unplug the wire harness the fan and check for voltage at the harness when you know the engine is hot and calling for the cooling fan. Or, turn the AC on. This will command the fan on no matter what. CAUTION: do not leave the AC running for longer than about a minute if the fans aren't working. This could build up excessive head pressure in the AC system.

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The car runs hot. the only way i can help the problem is by turning on the heat in the car, and this is the only way the fans kick on. i have replaced the thermostate, radiator cap, drain and refill...


Sounds like you may have a blown head gasket. Is your coolant level low and have you had to add coolant. Still sounds like you may have a cooling fan issue or maybe even a clogged radiator. what is the temperature difference from the inlet and the oulet of the radiatoe hoses? Anything less than 20 degrees and I would say the radiator is toast and you need a new one. And fix the cooling fan issue. But still dont rule out the blown head gasket especially if it over heated...

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2003 Chevy Impala, running hot. Changed fan shroud because cooling fan wouldn't turn on, switched out fan relays, no check engine light. Cooling fan still will not turn on.


Would turn the key on no need to start it and unplug the ect engine coolant temp sensor. If fans come on then suspect a faulty etc which may not turn on the engine light. Which engine is in the vehicle so I can help locate the ect which is usually by the thermostat housing.

Jun 12, 2011 | 2003 Chevrolet Impala

1 Answer

Dodge caravan 2000 3.3 L. 40 amp. cooling fan fuse blows in 5 sec appox. new fan relay , new fan motors ,new heat senor. thanks tom war


My 96 Caravan had this problem as well as the passenger headlight would not come on. It turned out to be pinched and shorted wires under the battery box where the wires plug into the power box and computer. It happened the first time driving away from the dealer the day I bought it! It got worse from there.

Jun 07, 2011 | 2000 Dodge Caravan

1 Answer

I have a 1997 Ford Thunderbird. Upon turning the ignition key the cooling fan turns on and the car will not start. There is nothing you can do to make the car start until the cooling fan turns off which...


I would hate to tell to replace any parts without doing some testing , The cooling fan is controlled the PCM - engine computer through the CCRM - constant control relay module . The only thing i can would suggest is you have it hooked up to factory scan tool to check for DTC'S - diagnostic trouble codes an have scan data looked at . Different sensor inputs to the PCM , ECT - engine coolant temp sensor, IAT - intake air temp etc.... If there are no codes ,check power an ground circuits of the PCM . If the cooling fan stayed on all the time i would say the CCRM was bad , still could be , but with out testing this is just a guess . Do you know how to do automotive electrical testing using a test light , volt meter ? How to read an use a wiring diagram ? You can find free wiring diagrams here
http://www.bbbind.com/free_tsb.html Enter vehicle info . year , make , model an engine ! Then under system click on engine , then under subsystem click on cooling fans . Good luck !

Apr 10, 2017 | 1997 Ford Thunderbird LX

2 Answers

The car over heats in a matter of minutes. We put a new water pump on but we need to know where the fans sensors are? Cn you help?


If it's overheating in a matter of minutes from cold, it is probably not the fan or fan switches. If the gauge goes up that fast, it is often because of air in the system. When hot air hits a water sensor, the gauge will skyrocket. make sure the radiator is full and open any bleeders in the cooling system (if it has any) to purge all of the air out. Also, try turning on the air conditioner -- that should start the cooling fan -- to see if that makes a difference. One more thing: just because a part is new, don't assume it's good. I once saw a car overheating with no heat and a full radiator (classic water pump) with a new water pump on it. We took it off and realized the impellor (blades) was loose on the shaft! Good luck.

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2 Answers

Cooling Fans Wont Kick In


Temp sending unit has gone out it tells the fans through the relays to come on. Those units are usually found on th block where the radiator hose couples to the motor.

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