rad fans stay on

Gamesy · #1 11-09-2011, 04:45 PM

i've noticed lately that my rad fans dont turn off at all now, what would cause this

Conn SVX · #2 11-09-2011, 04:48 PM

Your fan sensor . I believe it is near the bottom of the radiator . You don't have the climate control on or the defroster right

Green1995SVX · #3 11-09-2011, 04:48 PM

Coolant temp sensor is a possibility.

92snowmachine · #4 11-09-2011, 05:05 PM

Quote:

Originally Posted by Green1995SVX

Coolant temp sensor is a possibility.

i second that. after moving around stuff in the engine bay my fans were staying on and it turned out to be the coolant sensor connector had come off.

Gamesy · #5 11-09-2011, 05:07 PM

Quote:

Originally Posted by Green1995SVX

Coolant temp sensor is a possibility.

if thats the case couldnt the engine temp gauge on the dash not work either? mine still shows hot and cold

92snowmachine · #6 11-09-2011, 05:14 PM

it has two sensors, one for the gauge and one for the computer

1986nate · #7 11-09-2011, 05:15 PM

Quote:

Originally Posted by Gamesy

if thats the case couldnt the engine temp gauge on the dash not work either? mine still shows hot and cold

No, there is one for the ECU which controls the fans and the air/fuel mixture, etc. and there is one for the gauge cluster.

michael · #8 11-10-2011, 04:40 AM

Is your speedo functioning normally?

Green1995SVX · #9 11-10-2011, 08:46 PM

Quote:

Originally Posted by Conn SVX

Your fan sensor . I believe it is near the bottom of the radiator . You don't have the climate control on or the defroster right

Fan sensor? Really?

Conn SVX · #10 11-11-2011, 06:40 AM

My old 83 had one at the bottom of the radiator .

SVX92-97 · #11 11-11-2011, 01:28 PM

CONN 83 WHAT? In my case its always been the coolant temp sensor. Happened in my legacys and my prior svxs

Conn SVX · #12 11-11-2011, 03:02 PM

It was an 83 GL wagon. You call it a sensor or a what ever It is in the coolant and when it gets hot it turns the fan on . So chastise me for calling a FAN sensor .I stand corrected it is a coolant temp. sensor

Green1995SVX · #13 11-11-2011, 05:24 PM

Quote:

Originally Posted by Conn SVX

It was an 83 GL wagon. You call it a sensor or a what ever It is in the coolant and when it gets hot it turns the fan on . So chastise me for calling a FAN sensor .I stand corrected it is a coolant temp. sensor

It actually does quite a bit more than turn on the fan. It's also not in the radiator, but rather in the top of the engine block. Subaru did change one or two things between the 1983 GL wagon and the SVX.

Maxo · #14 11-15-2011, 08:14 AM

Would a bad temp sensor cause the fans to just come on more often? My fans aren't staying on but seem to be turning on and off more than usual, especially considering the high temps have only been in the 40's.
They both come on right away when the car is started and I've watched as they would turn on then off for a few moments then back on again.
I replaced the temp sensor probably 2 yrs ago. Seems kinda early for it to go bad again.

1986nate · #15 11-15-2011, 10:58 AM

Quote:

Originally Posted by Maxo

Would a bad temp sensor cause the fans to just come on more often? My fans aren't staying on but seem to be turning on and off more than usual, especially considering the high temps have only been in the 40's.
They both come on right away when the car is started and I've watched as they would turn on then off for a few moments then back on again.
I replaced the temp sensor probably 2 yrs ago. Seems kinda early for it to go bad again.

Did you replace with OEM, and you replaced the 2 wire sensor, correct?