hello, ive got the 95atx . question is, there is 2 radiator fans, {driver side & passenger side}. the pass side is the only one that i have ever seen run. Should both be running at the same time or is the drivers side a backup incase of pass fan goes out? Or is my driverside fan just bad. thanks for anyone with info.
radiator cooling fans
- Thread starter jimsho95
- Start date
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AutoSHO
No SHO = Mo $$$
One of the fans should run with the air conditioning, the other should turn on when the car gets to a certain temperature, I believe.
You can check to see if both fans are working by running the KOEO diagnostic test.
You can check to see if both fans are working by running the KOEO diagnostic test.
Slo-Sho
It wasn't me!
On my car they run concurrently...at all modes of operation(lo/hi). FWIW, I had to replace the larger fan (driver side) with a unit from AZ. It came with a LT warranty and cost about ~$70. I hope the pass. side doesn't go b/c there is no replacement for it that I could find. Ford sells the fan assembly as a whole and you don't even want to know how much they want. 
fan never came on with koeo or koer . if i use jumper wires straight from battery pos and neg to driverside fan 2 wire plug shouldn't the fan run?? also does driver fan spin real free by-hand, {with engine off of course}? mine seems to be abit tight, but the pass fan spins real easy and it does run . im thinking driver fan is bad but want to make sure before i pull it.thanks for any info
Slo-Sho
It wasn't me!
Yes, it is supposed to spin freely. If both of them are toast, I'd just get another used assembly on ebay or place a WTB. It is a cake job as two bolts secure the fan assembly to the radiator.
changed the ect today didnt make the driver fan work, any idea if this is a 2 speed fan? i tried jumping it straight to the battery but it still didnt do anything. i used the 2 pin plug as pos and neg but if its 2 speed fan i may need to treat both wires as positive. not sure. thanks for your info
Slo-Sho
It wasn't me!
Yes, jumping the fans directly to the battery should make it run. It is probably fried...The lo speed circuit has a dropping resistor in line with it (looks like a white ceramic block). The CCRM may also be suspect.
Slo-Sho
It wasn't me!
The fan motor itself is limited in speed by the dropping resistor. Supplying full power to the fan runs it at maximum speed. It is located toward the top on the inner side of the fan assembly. The C.onstant C.ontrol R.elay M.odule is located on the radiator support and has a gazillion wires going to it. I do not believe it is serviceable. By supplying 12v to the fan I think you have pretty much pinpointed your problem.
AutoSHO
No SHO = Mo $$$
As he said, if you ran 12v to the fan and it didn't run, you've just found the problem.
Fan motor is on order from AZ 69.99 thanks for all your help! now if i can just find out whats causing my emmission fail of high NOx i can finally start driving this . i havent been able to without a temp tag since January. did a complete upper and front 120k incl valve seals beginning of April and am just finishing up a few things that might be causing it before i try again. jimsho95
Slo-Sho
It wasn't me!
Clean the maf filaments? O2 sensors? Fuel filter? High NOx means it's running lean IIRC...I'm probably wrong though.
yes i did clean maf couple days ago, im also going to change fuel pump and filter. o2's where changed a couple yrs ago,but i need to check them again, can they be cleaned somehow? my exhaust still gets pretty black/sooty.
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