I AM HAVEING A ELECTRICAL ISSUE WITH MY FAN. IT CONTINUES TO RUN AFTER I SHUT THE CAR OFF (IT DOESN'T QUIT TILL THE BATERY DIES). I CHANGED THE RELAY AND THAT FIXED IT AT FIRST BUT IT IS STILL DOING THE SAME **** EVEN AFTER I REPLACED THE RELAY 3 TIMES.

DOES ANYONE KNOW WHAT COULD BE CAUSEING THIS??

 

When you plug in the new relay does the fans start to run?

 

yes! no matter if the relay is brand new or not as soon as i plug it back in the fan starts running again. the only time the fan stops is when i remove the relay

 

Then wether they are controlled by power or ground they are either shorted to a ground somewhere or shorted to a power somewhere.

Most likely they are shorted to ground. I can look at some wiring diagrams when I get to school tomorrow.

 

ok, i have no idea where to start to trouble shoot this problem. it just started doing this out of nowhere and i am completely clueless. any help you can give is greatly appreciated!!!

 

Sure thing man. Ill check out the diagrams tomorrow.

 

maybe the temp switch for your fans is bad and is giving your ecm a false reading

 

temp switch? where is it? never heard of that before

 

If that was the case the car wold have a hard time since that is one of the most important sensors on the car.

To check it just put an ohm meter across it. Its a thermistor, which is a resistor that varies resistance by temp. So check resistance on it cold and then start the car, let it run and then check resistance again.

 

what should nit read "cold" and while running? where is it located?

 

Im guessing you didnt build your car? Either way it doesnt matter.

The coolant temp sending unit is on the driver side head towards the front of the head.

Just relax for a bit until i can get you those digrams.

 

your right... TR did the engine mods, I know which one your talking about now, just wasn't thinking...lol! I'll wait for you to get those diagrams.... i'm just gonna continue to pull the relay out when its gonna be parked for a while.

 

Cool Ill get back to you tomorrow.

 

http://www.ls1fc.com/images/highspeedonlyvb1.gif

http://www.ls1fc.com/images/ls1coolingfansbu6.gif

 

LOOKING AT http://www.ls1fc.com/images/ls1coolingfansbu6.gif , I SEE THAT THERE ARE 3 RELAY'S FOR THE FANS.... I ONLY REPLACED THE ONE ON THE RIGHT ( LOOKING AT THE SCREEN). I DID NOT CHANGE OR CHECK ANY OF THE OTHER 2. I HAVE AFTER MARKET FUSE BOX COVERS SO NOTHING IS LABELED...LOL

 

Problem has been solved....... We narrowed it down to my fans are wearing out which is makeing them draw more power than need and messing up the relays. Thanks everyone for their help!!!!