97 SHO cooling fans are stuck on - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

jimsnorton · 10-01-2009, 18:39

I know I'm a day late here, & I'm new to this 4m. I've had a '97 SHO for a couple of years but I never drove it until this summer. I have too many cars, & I ride a motorcycle 98% of the time.
I need to chime in here, 'cause my fans are stuck on even with the key in my pocket! I have a '97, 3.4L V8 and last weekend I used the A/C & that's when it happened. I had to pull the fuse to turn them off. I read your post but it doesn't mention the 3.4L V8. Can you enlighten me?

**tbird100636** · 10-01-2009, 20:09

Quote:

Originally Posted by jimsnorton

I know I'm a day late here, & I'm new to this 4m. I've had a '97 SHO for a couple of years but I never drove it until this summer. I have too many cars, & I ride a motorcycle 98% of the time.
I need to chime in here, 'cause my fans are stuck on even with the key in my pocket! I have a '97, 3.4L V8 and last weekend I used the A/C & that's when it happened. I had to pull the fuse to turn them off. I read your post but it doesn't mention the 3.4L V8. Can you enlighten me?

The 1997 SHO is similar to the previous post. It still has a CCRM to control the fans, compared to 1998 and later models which used seperate relays. The CCRM is located next to the battery, next to the inner fender. Held by a metal strap. Disconnect the connector and check for corrosion on the pins.

jimsnorton · 10-01-2009, 21:25

Wow, thanks for the really quick response on this.

I'll check it in the a.m.
Thanks,
Jim

jimsnorton · 10-02-2009, 13:24

I have looked at that component & the contacts all look very good, on both sides, M&F.
The fans click on as soon as I reinstall the fuse. Could the temp sensor be responsible? Can you tell me where it's located?
I just ordered a service manual, from "Car Parts Wholesale", $28 & change.
Car Part Wholesale - Auto Parts and Accessories Catalog - Haynes Repair Manual - Paper
Jim

**jwko** · 10-02-2009, 13:50

The coolant switch should be mounted in front driver side of intake manifold

Here's a schematic that might be of some help.

jimsnorton · 10-02-2009, 15:10

You guys rock! I'm happy to have found this forum. Now I have more to look for. Thanks.

jimsnorton · 10-02-2009, 15:49

I can't find that sensor. I've pulled the plastic cover, but I don't see anything that looks like a sensor that is tapped into a water source. Do I need to pull the air intake?

jimsnorton · 10-02-2009, 16:06

I removed the air intake from the end of the engine & from the air filter & found the sensor. I unplugged it & the fans still run. I'm thinking it's the CCRM at this point. Can anyone shine any additional light on the subject?

**jwko** · 10-02-2009, 19:18

Moved post into its own thread.

**Bert** · 10-02-2009, 20:05

You could lightly tap the CCRM and see if the fans go off. The temp sensor wouldn't cause it to stay on with the key off.