Radiator Fan Always on.

Radiator Fan Always on.

Postby StuartO on Tue, 25 Jun 2024 4:48 +0000

Hey guys my 2016 hilux with 220 000km has just developed a problem with the radiator fan staying on. I can't find a fan switch at first glance. I'm currently on the Gibb River Rd so maybe dust or rubbing has caused an issue.

Any guesses on what it could be? Or what I could look for?

Thanks for any suggestions.
StuartO
 
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Re: Radiator Fan Always on.

Postby Rob_Wood on Tue, 25 Jun 2024 6:51 +0000

StuartO wrote:Hey guys my 2016 hilux with 220 000km has just developed a problem with the radiator fan staying on. I can't find a fan switch at first glance. I'm currently on the Gibb River Rd so maybe dust or rubbing has caused an issue.

Any guesses on what it could be? Or what I could look for?

Thanks for any suggestions.


Much better permanently on than not on at all.
Have you got more than the "High / Low" temperature gauge?
Worst case scenario is to nurse it into the next available pit stop and get someone in the know to take a look.
Older vehicles the fan was run by a thermistor (or the like) somewhere on the block, but I think you'll find that the newer vehicles have everything going in and out of computers. Makes it a little harder to track down a basic fault. This is why I'd suggest getting someone to take a look.
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Re: Radiator Fan Always on.

Postby StuartO on Wed, 26 Jun 2024 7:02 +0000

Cheers Rob,

Yeah my coolant temps are 86°c with my torque app and everything else is normal. I'm guessing a fan or relay issue. I'll have it looked at in the next major town.

This doesn't appear to be a common problem, so my guess is a vibrations have caused an issue.
StuartO
 
Posts: 35
Joined: Sat, 16 Apr 2016 3:10 +0000
Location: Australia

Re: Radiator Fan Always on.

Postby Gipsy on Wed, 26 Jun 2024 8:14 +0000

Stuart, the fan also comes on with the AC so is it hot there?
Cheers Gipsy :D although I'm sure somebody will challenge that :lol: even Einstein wasn't certain of his theories.
My 2013 auto D4D DC SR5, prefilter, 3" exhaust and Chip with egt probe, stock SR5 rims with Toyo Open Country AT2 265/65R/17's
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Re: Radiator Fan Always on.

Postby Rob_Wood on Wed, 26 Jun 2024 9:31 +0000

Gipsy wrote:Stuart, the fan also comes on with the AC so is it hot there?


Nice pickup, that'll be one of those "computer ins and outs" I was referring to.
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Re: Radiator Fan Always on.

Postby StuartO on Wed, 26 Jun 2024 3:53 +0000

Thanks Gipsy,

The first time I noticed it was from a cold start and I could hear the fan, which is not normal.

In saying that I just checked and it's still running all of the time including without A/C.

Cheers.
StuartO
 
Posts: 35
Joined: Sat, 16 Apr 2016 3:10 +0000
Location: Australia

Re: Radiator Fan Always on.

Postby Gipsy on Thu, 27 Jun 2024 6:21 +0000

Then it sounds like a stuck relay or switch
Cheers Gipsy :D although I'm sure somebody will challenge that :lol: even Einstein wasn't certain of his theories.
My 2013 auto D4D DC SR5, prefilter, 3" exhaust and Chip with egt probe, stock SR5 rims with Toyo Open Country AT2 265/65R/17's
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Re: Radiator Fan Always on.

Postby StuartO on Wed, 10 Jul 2024 9:52 +0000

Sorry guys just an embarrassing update. My viscous fan is working fine.
StuartO
 
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Location: Australia

Re: Radiator Fan Always on.

Postby Rob_Wood on Wed, 10 Jul 2024 11:07 +0000

StuartO wrote:Sorry guys just an embarrassing update. My viscous fan is working fine.


Dunno why that's embarrassing (better safe than sorry, especially in remote areas) but it is good to hear all is well.
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