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Help with cooling fans.

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Old 10-29-2024 | 10:01 PM
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Unhappy Help with cooling fans.

2000 S here. Getting a new coolant tank and AOS installed as I type this. On the way to the shop, it was running hot. Coolant level was fine.
I have checked the fans with the Durametric software and they both run on low and high. Doesn't seem to come on with the A/C. Any idea why it's not kicking on the fans? Sensor? Switch?

Thanks!

Old 10-30-2024 | 08:25 AM
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Originally Posted by JSLong
2000 S here. Getting a new coolant tank and AOS installed as I type this. On the way to the shop, it was running hot. Coolant level was fine.
I have checked the fans with the Durametric software and they both run on low and high. Doesn't seem to come on with the A/C. Any idea why it's not kicking on the fans? Sensor? Switch?

Thanks!
What is your definition of hot? Was a light coming on? Flashing?

Why do you expect your fans to come on for just running the AC?
Old 10-30-2024 | 11:46 AM
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Originally Posted by Starter986
What is your definition of hot? Was a light coming on? Flashing?

Why do you expect your fans to come on for just running the AC?
Just about every car made with modern Ac all cooling fan s are programmed to come on when Ac is turned on , regardless of temp. I imagine he has a bad sensor somewhere..
Old 10-31-2024 | 10:06 AM
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Originally Posted by theiceman
Just about every car made with modern Ac all cooling fan s are programmed to come on when Ac is turned on , regardless of temp. I imagine he has a bad sensor somewhere..
My bad. I haven't run my AC in 6+ years... as the flap on the box under the cabin filter is inoperable... letting air in ovver the AC. Also, I'm certain my refridgerant (sp) is depled I'm certain.

Anyhow... I had problems with my fans about 6+ years ago replacing them both. I forgot that when I was testing them I throttled the AC switch. I recall the fans coming on when the AC button was activated.

I'm thinking, now... sensor not so much instead a bad relay... fuse... AC button connection.

Thank you for the correction.
Old 10-31-2024 | 02:16 PM
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Originally Posted by JSLong
2000 S here. Getting a new coolant tank and AOS installed as I type this. On the way to the shop, it was running hot. Coolant level was fine.
I have checked the fans with the Durametric software and they both run on low and high. Doesn't seem to come on with the A/C. Any idea why it's not kicking on the fans? Sensor? Switch?

Thanks!
It looks like you've covered the main points: coolant level and fan functionality. If the fans aren’t kicking on with the A/C, it could indeed be an issue with a sensor or relay. Often, the problem lies with the coolant temperature sensor or fan relay, which might not be sending the correct signal to activate the fans when the A/C is turned on. It could also be worth checking the A/C pressure switch, as it sometimes impacts fan operation in certain systems. A good shop, especially with diagnostic software like Durametric, should be able to quickly identify and fix any issues, whether it’s a sensor or relay problem.

Incidentally, in mobile development, creating apps for vehicle monitoring could add even more convenience for users. Features like remote diagnostics and real-time error notifications would make it easier to stay on top of your vehicle’s condition.
Old 11-01-2024 | 06:36 PM
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Originally Posted by Dicagand
It looks like you've covered the main points: coolant level and fan functionality. If the fans aren’t kicking on with the A/C, it could indeed be an issue with a sensor or relay. Often, the problem lies with the coolant temperature sensor or fan relay, which might not be sending the correct signal to activate the fans when the A/C is turned on. It could also be worth checking the A/C pressure switch, as it sometimes impacts fan operation in certain systems. A good shop, especially with diagnostic software like Durametric, should be able to quickly identify and fix any issues, whether it’s a sensor or relay problem.

Incidentally, in mobile development, creating apps for vehicle monitoring could add even more convenience for users. Features like remote diagnostics and real-time error notifications would make it easier to stay on top of your vehicle’s condition.

Remote diagnostics would imply changing operating characteristics of a vehicle from an App ( not just logging ). I am not conspiracy minded in any way but manipulation of an app of this kind could be inherently dangerous could it not ?

Secret agent making another car accelerate from your phone kind of stuff
Old 11-02-2024 | 11:13 AM
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Originally Posted by Dicagand
It looks like you've covered the main points: coolant level and fan functionality. If the fans aren’t kicking on with the A/C, it could indeed be an issue with a sensor or relay. Often, the problem lies with the coolant temperature sensor or fan relay, which might not be sending the correct signal to activate the fans when the A/C is turned on. It could also be worth checking the A/C pressure switch, as it sometimes impacts fan operation in certain systems. A good shop, especially with diagnostic software like Durametric, should be able to quickly identify and fix any issues, whether it’s a sensor or relay problem.

Incidentally, in mobile development, creating apps for vehicle monitoring could add even more convenience for users. Features like remote diagnostics and real-time error notifications would make it easier to stay on top of your vehicle’s condition.
****. ChatGPwhatever response? ****. No one talks like that.
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