Question about 1994 Jeep Grand Cherokee

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Fan works, but ac does not. ac relay had 2 burnt

Fan works, but ac does not. ac relay had 2 burnt pins. replaced relay still will not work

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  • Jeep Master
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Check wiring going into the relay to make sure there's continuity beteween each wire and the spade connectors

Posted on Jun 25, 2009

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When i turned the car off the ac fan keeps running. Runs my battery down


Year make and model helps. On some fuse panels, corrosion causes this. They can be cleaned and start working properly, as long as you don't see any burnt/melted wires. Other panels get over heated and wiring on the inside starts to bend and eventually will touch other wires. These have to be replaced. On rare occasions, the fan relay will stick and keep the fans running. Swap it with another and see it if stops. If so replace the relay.

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Radiator fans randomly shut off


  • Relays carry high-amperage current controlled by a low-current switch
  • When a faulty relay is not replaced, the circuit will either be non-functional or remain engaged. here's your relay you need.
http://www.autozone.com/cooling-heating-and-climate-control/relay-radiator-cooling-fan-motor/duralast-relay-radiator-cooling-fan-motor/oldsmobile/alero/1999/4-cylinders-t-2-4l-sfi-dohc/221833_0_0

Aug 16, 2015 | 1999 Oldsmobile Alero

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Why won't my cooling fan turn on (swapped thermostat, thermoswitch, fan really)(fans work when hard wired to battery). Causes car to overheat in idle.


depending on the year, there should be 3 relays that control the fans.
There's a rad fan relay (4 pins), an a/c condensor fan relay (4 pins), and a fan control relay (5 pins). This allows them to be run at low speed or high speed. Check the grounds behind/under the righthand headlamp.
Check Fuses 57, 58 (30 Amps) and fuse 46 (15A) under the hood, and fuse 3 (7.5 Amps) in the driver's underdash fusebox.

May 18, 2014 | Honda Pilot Cars & Trucks

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The radiator fans arent working in my 1995 crysler LHS how can i fix this?


would say the fan temp switch needs replacing. its fitted to the radiator. blue or black. fan switch type 2 or 3 pin type depending on if you have other things on the engine.. ac etc.

Jan 22, 2014 | 1995 Chrysler LHS

1 Answer

Cooling fans not coming on


Just had this same issue. I checked the relay/fuse box under the hood (drivers side next to battery). There are 3 relays and two 20 Amp fuses that control the fans. My problem was with my Cooling Fan Low relay, however, it was not the relay at fault, rather it was one of the pins in the relay box. The pin had flared a little and was not making good contact, and when I had the car idling, I moved the relay and saw one of the pins arcing a little and my fans came on. I was able to take a small awl (you could use a really small flat blade screwdriver) to close the pins sides in so that good contact was restored and it is working fine now. I am especially happy that my AC is working again, since when the fans go out, it cuts the AC at idle. If you have any other questions about my fix, let me know.

Brian

Aug 18, 2013 | 2004 Suzuki Verona

2 Answers

AC/heating fans don't work


The relay center is under the hood, there should be several with the same #'s switch one that you know is working in place of the fan relay, if fans turn on replace relay. It is faster to turn on ac after switching relays for diagnostics as fan should run as long as ac is on...

Dec 10, 2009 | 2004 Honda Accord

2 Answers

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

Nov 02, 2009 | 1994 Buick Roadmaster

1 Answer

Fan not working for heat and ac?i checked the bar of four relays on the passenger side would it be something else? also checked fuses in car


can be couple of things, 1. motor burnt out 2. fan switch is faulty 3. fuse 4. relay. if you have a volt meter tester than you test them all and see if they all are working. if you think relay and fuse are good, more likely it will be the switch or the motor. they all are easy to fix and replace. if you have to replace the parts and want to save money, get it from the junk yard or ebay; dealer has 100% mark up.

Oct 02, 2009 | 1997 Buick Skylark

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Where is the cooling fan relay located in a 1994 ford mustang gt ?


is the same relay that works with the fuel pump it's call constant control relay module

Sep 04, 2009 | 1994 Ford Mustang

2 Answers

02 suburban heat/ac fan


Burnt relay or coil, listen for-and follow the clicking when you change fan speeds it'll lead you to your relays. Also look for burnt connectors.

Jun 29, 2008 | Chevrolet Suburban 1500 Cars & Trucks

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