how to test aux fan e34?

[jhonmagee]

How do u test the auzilery fan can anyone tell me how to test it wat wires go to wat if u hav to use jumper cables to the possitive terminal i mean i dont kno how to do this lol

[5mall5nail5]

Ideally you can just jumper the switch at the radiator. Its a thermal switch. If you jump the switch the fan should run.

[jhonmagee]

How do i jump it

[WERDNA1975]

Just turn on the A/C

[ishcan]

auzilery.... gonna have to use that one.

[dohcdoh]

How do i jump it

Google. Everyone, lets leave him to his own devices and see if he can figure it out. I used google and did it for my cars, let us see 'wat' he can figure out by himself.

[thatonedood]

But he could cheat and read post four though

OP, last week I came across some good info for methodically checking aux fan issues. My googler is pretty sweet though

[dohcdoh]

But he could cheat and read post four though

OP, last week I came across some good info for methodically checking aux fan issues. My googler is pretty sweet though

Bet he doesn't and asks someone to google it for him. Lol my googler is pretty sweet too. I type in stuff, press search and amazingly answers appear.

[thatonedood]

One thing I'll say: if you're like me and don't really know what you're doing, at times google can be a bit panic inducing and/or dangerous..

[bradbusa]

buy a power probe, isolate the component from the circuit and actuate it manually

[dohcdoh]

buy a power probe, isolate the component from the circuit and actuate it manually

Get piece of wire. Follow instructions on Internet to jump circuit. ???? Profit

[PiRX]

But he could cheat and read post four though

OP, last week I came across some good info for methodically checking aux fan issues. My googler is pretty sweet though

Care to share? I'll probably need to check mine, but most resources I have found seems quite vague about checking fan.

[Racerhoze]

Unplug plug from sensor on side of radiator, there are three terminals, use paper clip to jump a terminal to ground, there will be a low and high speed.

[ross1]

The first and easiest check is for a seized motor, poke a tool through the grill and check if the fan blades turn. It ought to spin freely, if not it's junk. To check a motor that spins free connect ground to the brown wire and apply 12v to the blu/blk wire for the low speed. If it does not operate apply 12v to the solid blue wire, if it operates the motor is good and low speed resistor is open(bad).

[Petrolheadpilot]

The first and easiest check is for a seized motor, poke a tool through the grill and check if the fan blades turn. It ought to spin freely, if not it's junk. To check a motor that spins free connect ground to the brown wire and apply 12v to the blu/blk wire for the low speed. If it does not operate apply 12v to the solid blue wire, if it operates the motor is good and low speed resistor is open(bad).

Yep the aux fan seems to be working fine. Spinning freely appears intact, and turns on and off with the AC.

[shogun]

http://www.nmia.com/~dgnrg/page_20.htm