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c0n13oX
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Fans.

Post by c0n13oX »

Edit:

After about 30mns of driving my car starts to get warm, goes to about 3/4s and then the fans kick in. Not sure why its heating up. Any odeas would be mich appreciated
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Shhtuart
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Re: Fans.

Post by Shhtuart »

Did you top up the coolant after we changed the sensor? Also if that connector has come out it could be causing it.
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Re: Fans.

Post by c0n13oX »

Coolants all good, and the sensors all good too.
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Re: Fans.

Post by Shhtuart »

Did you bleed any air out of the system? Air can cause issues, just pull the radiator cap off and run the car
If you can see air bubbles coming through then you have a leak somewhere. The only other thing I can think is that the new sensor is sending the correct values to the ECU and it's kicking the fans on. How old is the thermostat is the car?
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Re: Fans.

Post by c0n13oX »

Will try air bleed. The thrmostat is only 7 months old.
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Re: Fans.

Post by c0n13oX »

Do I just leave it running till I see no more air bubbles?
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Re: Fans.

Post by Shhtuart »

Yes but seeing air bubbles is bad. Give it 10 to 15 mins max. If that doesn't clear it then there's a leak. Try raising the revs to 2k for a bit to help clear it.
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Re: Fans.

Post by c0n13oX »

Orright cheers. Will let you know how I go
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Re: Fans.

Post by Shhtuart »

Also give the radiator hoses a squeeze along the length of them to encourage any air along
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Re: Fans.

Post by c0n13oX »

No air bubbles that I saw.
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Re: Fans.

Post by rock_it »

Maybe the gauge is not reading accurately..

So when it is reading at 3/4, maybe it is actually 1/2 ... I remember Dan having that problem with his Barina..
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Re: Fans.

Post by c0n13oX »

Didnt fix it stuart.

Wouldnt that mean when its at 1/2 it would be cold?
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Re: Fans.

Post by Shhtuart »

Halfway is normal operating temperature. Anything over that and you've got a cooling issue. Unless the dash sensor is playing silly buggers.
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Re: Fans.

Post by Shhtuart »

The dash sensor isn't related to the the thermostat or the CTS so if the fans are kicking in its not the dash sensor at fault. Was it doing it before we changed the CTS?
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Re: Fans.

Post by Shhtuart »

Image

Should sit there
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Re: Fans.

Post by c0n13oX »

It was doing before changing the cts, yeah.
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Re: Fans.

Post by Shhtuart »

Are the upper and lower hoses flowing properly? Check they're both pressurized when its at normal temp. You could have a blockage. I had the fans kicking in all the time before I got a new radiator and changed the CTS.
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Re: Fans.

Post by Shhtuart »

Could be an electrical fault. Dodgy wiring or a stuck thermostat.
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Re: Fans.

Post by c0n13oX »

Ill check all that out after work. Cheers
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Re: Fans.

Post by Daniel2019 »

rock_it wrote:Maybe the gauge is not reading accurately..

So when it is reading at 3/4, maybe it is actually 1/2 ... I remember Dan having that problem with his Barina..
Negative, barina was fine, gauge just went up and down with fan temp and gave accurate reading. I had it tested by local mechanic. Fans kicked in at around 98-100 deg and stayed on until 92 degrees, and gauge followed those temps.

Sounds like problem smurf had. Change temp sensor on gauge side, should do it.

Edit: but could also be blocked radiator/coolant sleeves/hoses, bad water pump, bad thermostat etc. And could also be ECU temp sensor.
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