Carb Cooling Fan/Missing Relay(s)?

[harrison60]

Since I bought my FJ60 approx 1 year ago my interior dome light has never worked. Bulb looked good so checked the fuse next and noticed it was missing completely.

This past weekend I put a 7.5A fuse in, Dome light works...great. Drive home to my folks place, all good. The next day when I was walking up to the truck I noticed a noise was on and it sounded like a fan. Opened the hood and realized (after searching on here!) it was the carb cooling fan. The motor was warm to touch so guess it had been on overnight.

For now I just unplugged the wiring harness so the fan doesn't run.

First thing I searched on here to read about the carb cooling fans and have seen others had issues, this thread was super helpful.

The infamous carb cooling fan

forum.ih8mud.com

So as I now understand, the carb cooling fan needs the dome light fuse in and working to run, hence why it's now working - but it's not turning off.

To troubleshoot after reading up on here I checked my relays behind the fuse panel as I understand there is a cooling fan relay here and it upon looking it looks like I am missing a couple of relays but I am struggling to figure out which ones are missing? I have attached an image to show you.

I have been trying to use the below image from the FSM as a comparison but it doesn't appear to match up. There are three spaces to the side of the turn signal flasher in my photo, but only 3 spaces in total for relays in the FSM image.

https://forum.ih8mud.com/attachments/switches-and-relays-jpg.1989343/

Any advice here would be great. Would the fan run but not turn off if the relay was missing?

I just want to rule out this before further investigating the temp sensor etc as I know that's most commonly the issue...

 

[Spike Strip]

It's more likely the carb fan timer that's under the passenger kick panel.

Also, make sure the wire that goes to the thermoswitch at the exhaust manifold hasn't burned thru and is touching a ground. But if the fan just continues to run, probably the timer.

 

[harrison60]

thanks, i'll investigate that first!

 

[Rustyj41]

I removed my fan (working). If you end up needing a timer or new fan I'll sell mine.

 

[Engineer8000]

I test and repair those carb cooling fan controllers at Cape Fear Electronics.

 

[Engineer8000]

This is a fan controller from a 40 series that I just finished.

 

[FJ60Seth]

This was my solution…

The infamous carb cooling fan

The wire should be visible from the top. Snoop around below your carb fan from there to the engine and sticking out of the wire harness near there will be a wire that's not connected to anything without a connector. That's going to be it. I don’t appear to have any unconnected words and not...

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