fan not running

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01-04-2009, 03:53 AM

jacobness

Thread Starter

Join Date: Aug 2008

Location: Illinois

Posts: 6

fan not running

so basically when i start my car and let it warm up drive it etc. the electric fan never starts everything from the engine leading up to the fan is spinning i'm just wondering if anyone else has encountered this problem and if i need a new fan?

so far the car was overheating but i looked and replaced the thermostat it was broken the car idles fine and doesn't overheat i just don't want to drive it and get stuck in the middle of nowhere because my fan won't turn on

i own a 1991 gt

01-04-2009, 04:15 AM

Catchpole

2nd Gear Member

Join Date: Nov 2008

Location: Washington

Posts: 254

Have you checked whether or not the fan is getting power? If not then check all the wiring, fuse, and relays if you got one as well as the ground.

If all those work I'd have a hot wire go to the fan just to make sure the fan motor isn't fried.

I just run a fan with a fuse and a grey and black switch(to match my interior)

Check it out and LUK

01-04-2009, 12:22 PM

FORD TOUGH

4th Gear Member

Join Date: Oct 2008

Location: Virginia

Posts: 1,107

Quote:

Originally Posted by jacobness

When you are letting warm up and idle does it get hot enough for the fan to come on?

01-04-2009, 06:06 PM

mjr46

D.R. THE PATHETIC DORK

Join Date: Jun 2007

Location: West Virginia

Posts: 30,863

how is fan wired?? is there a relay controlling it??? where is the sending unit that should trigger fan operation through most likely a relay???

01-06-2009, 07:24 PM

jacobness

Thread Starter

Join Date: Aug 2008

Location: Illinois

Posts: 6

ok so we had the mustang checked out by a friend (mechanic) the car is still overheating but we think it's because of a broken water pump and the fan isn't spinning because of broken spindles i believe

i just hope we don't have to replace the heads because i'm not a skilled mechanic and i still want to do some stuff myself

01-06-2009, 07:48 PM

Jfsram

4th Gear Member

Join Date: Jan 2007

Location:

Posts: 1,999

Electric fans generally do not come on until the coolant is PAST it's normal operating temperature. If the thermostat is 190 deg, the fan should not come on until a much higher number like 220. Now it should run and turn off before it falls to 195 so typically it will go off at 195.

Beside running def on an ac car or running ac. The fans should never come on unless you are stopped or driving really slow. Normally speeds over 40 mph is enough to cool the water in a radiator.

This is for a properly functioning cooling system. If you have a plugged rad or a bad thermostat all above will not apply.