stock 90 integra ls sedan

its my gf's car, she just bought it a couple months ago. the problem is when the car is off, sometimes the radiator fan would turn on and off and it would keep doing it until the battery dies. anyclue to what can be causing the fan to run when the car is off?

 

bump 4 help

 

Bump . Help for a HT hommie. i had the exact problem with my 90 LS. couldn't figure it though. hope u get the help u need.
im pretty sure that its indication that the Rad is dying off.

 

it's a bad fan switch.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by skunked &raquo;</TD></TR><TR><TD CLASS="quote">it's a bad fan switch.</TD></TR></TABLE>

wouldn't the fan not be running at all w/ a bad fan switch?

 

bump 4 help

 

it could be a bad sw, relay, wire. u have to get the wiring diagram and check the whole fan circuit. Or try unplugging the fan sw ( the one that's in the thermostat housing ) when it starts acting up! good luck!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Terrible One &raquo;</TD></TR><TR><TD CLASS="quote">

wouldn't the fan not be running at all w/ a bad fan switch?</TD></TR></TABLE>

Bad being it's fritzy, just unhook the fans until you figure out the exact problem,
you need to be in Hot heat to actually need them.

 

I have a 93 Integra with the same problem.
The fan keeps running after the engine is turned off. (I can't remember if I took out the key or not).
I already changed the fan switch with a new one and it still does it. Not all the time though which is the weird thing.

Now here's my question.
Is the radiator fan circuit connected to a + source that only comes on when the ignition is turned on ? If so, how can the fan even be running if the car is turned off ?

If I short the circuit across the fan relay while the car is turned off, will the fan start to run ?