red2010_2008

hey ive been having this problem for a while. Ill get the motor really hot and when i go to shut the car off the fans turn on as normal, but then they go on and then shut off, then after a min or two it will turn back on and off again......is that the relay? where would it be located if it is? Thanks

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el_baby

dont know if it is the problem... but it is located next to the ecu... in the passenger side in the floor, down of the dash

Windwalker

You sure about that? There's one in the fuse block in the engine compartment. Are there 2? Because I'm trying to track down why mine doesn't work

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granpappy said the three things in life you need are.
1. A hot beer
2. A cold woman
3. and, a Half-hour to fix em both

el_baby

i'm pretty sure that this is the fan relay but really dont know if there are other... a black box with 3 or 4 wires...
i have check them in the helms after i blow my rad...

when i was cleaning the car from the inside i remove it, need to go to the bank, just connect wut i know, ecu and abs...
summer, went to a mcdonals to buy a drink at the next light it blew... end up with a koyo....

red2010_2008

damn lol, well theres a black box in the engine bay and i pulled that relay and it shut the fans off......would i need to replace that one or the other one by the ecu, which i have never heard of a relay by the ecu lol.

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el_baby

I have check the manual... in the fusebox in the engine there is the fan relay... and the black box I said is the fan timer unit...

without that blackbox they wont start... so if they are working the relay must be good and probaby that box is probably getting damaged...

or maybe a thermostat is getting bad...which I will say that it could be the cause


I'm not a mechanic, I just look the wiring diagram...
the thermostat get's hot, send the signal (ground) to that black box and the black box activates (+12V) the relay and then the fans go on...

kingspade0311

Mine Does the same thing. it'll over heat then when i get on her she'll cool down. then when i shut the car down the fans kick on. They wont even turn on durin operation.

jomama3737

after i did my motor swap i had a problem with my fans too. they run normal, but everytime that i shut my car off the fan stay on for 5 mins afterwards. even if i let my car sit over night and i put the car to on without starting it and then take the key out the fan turn on. i never knew what the problem was, and i didnt really care cause they worked properly when i needed them too. but if there is a solution to this i would love to hear it

el_baby

im not a mechanic but lookng at the wire diagrams... that problably could be because a thermostat...

spin_r_g

The thermostat doesn't control the fans. The fan temp switches do and fan control module. The fan control module is next to the ecu. The fan relay is in the fuse box under the hood. I don't have the wiring diagram handy but you can check to see if the system is running by jumping ports in the fuse box where the relay goes.

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el_baby

there are two temp switches...

when they are activated (when engine is hot) they connect to ground...
try to check them... with the car cool... with a multi tester or 12v lamp tester... connet to the battery and chek the temp switches...

if they are good then the problem is in the fan timer unit... the one next to the ecu