# Buick enclave air conditioning **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [May 7, 2023, 12:00pm UTC](https://community.cartalk.com/t/buick-enclave-air-conditioning/190472 "2023-05-07T12:00:56Z")\ **Posts on this page:** 14\ **Page:** 2
**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\ **Post date:** [May 7, 2023, 10:58pm UTC](https://community.cartalk.com/t/buick-enclave-air-conditioning/190472/21 "2023-05-07T22:58:17Z")
> [@George\_San\_Jose1](#): > > Instead the problem could be one of the hvac doors is sticking in the wrong position. Why should the blend door change position when the passenger compartment requires cold air? ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [May 7, 2023, 11:00pm UTC](https://community.cartalk.com/t/buick-enclave-air-conditioning/190472/22 "2023-05-07T23:00:39Z")
Why should a car fail to crank when the owner turns the key to “start”? ---
**Author:** ![Jenniferjeffreys\_185139](https://avatars.discourse-cdn.com/v4/letter/j/6f9a4e/32.png) [@Jenniferjeffreys\_185139](https://community.cartalk.com/u/Jenniferjeffreys_185139)\ **Post date:** [May 8, 2023, 12:53am UTC](https://community.cartalk.com/t/buick-enclave-air-conditioning/190472/23 "2023-05-08T00:53:58Z")
It’s not normal. It did not do that when I first bought the car. The AC light button turns off when the AC cuts out. I turn the car off. The engine fan continues to run. When it stops, I crank the car back up and the AC light, and this the AC comes back on. ---
**Author:** ![Jenniferjeffreys\_185139](https://avatars.discourse-cdn.com/v4/letter/j/6f9a4e/32.png) [@Jenniferjeffreys\_185139](https://community.cartalk.com/u/Jenniferjeffreys_185139)\ **Post date:** [May 8, 2023, 12:54am UTC](https://community.cartalk.com/t/buick-enclave-air-conditioning/190472/24 "2023-05-08T00:54:43Z")
It does not. ---
**Author:** ![davesmopar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/davesmopar/32/41750_2.png) [@davesmopar](https://community.cartalk.com/u/davesmopar)\ **Post date:** [May 8, 2023, 2:03am UTC](https://community.cartalk.com/t/buick-enclave-air-conditioning/190472/25 "2023-05-08T02:03:16Z")
> [@Jenniferjeffreys\_185139](#): > > This is exactly what is happening. Now that we know what is actually happening, you are having an overheating problem causing you to think you are having a A/C problem… Like Tester and Nevada said… Fixing the overheating issue will/should fix your A/C issues… ---
**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\ **Post date:** [May 8, 2023, 8:59am UTC](https://community.cartalk.com/t/buick-enclave-air-conditioning/190472/26 "2023-05-08T08:59:23Z")
quote=“davesmopar, post:25, topic:190472”] > [@Jenniferjeffreys\_185139](#): > > This is exactly what is happening. Now that we know what is actually happening, you are having an overheating problem causing you to think you are having a A/C problem… Like Tester and Nevada said… Fixing the overheating issue will/should fix your A/C issues [/quote] My **guess** , at the minimum, you need a new thermostat and a cooling system flush, then refill radiator with the specified coolant. You **might** need a new radiator. Or it could be the coolant sensor. What does the engine temperature show on your instrument display show when the AC turns off? What is the outside temperature display showing. > [@Jenniferjeffreys\_185139](#): > > Then I took it and they said the thermostat was registering extremely high and they did something else Would be helpful if a photo of the service report was uploaded. Bottom line, I my opinion, you need a better mechanic that has the correct diagnostic tools. “But to find out if this is what’s happening, a scanner needs to be connected to monitor live data from the computer. Tester” ---
**Author:** ![lion9car](https://avatars.discourse-cdn.com/v4/letter/l/59ef9b/32.png) [@lion9car](https://community.cartalk.com/u/lion9car)\ **Post date:** [May 8, 2023, 10:31am UTC](https://community.cartalk.com/t/buick-enclave-air-conditioning/190472/27 "2023-05-08T10:31:12Z")
> [@davesmopar](#): > > Now that we know what is actually happening, you are having an overheating problem causing you to think you are having a A/C problem… I’m not convinced that we’ve gotten the full story here. However, if this is what’s actually happening, I’d like to point out to the OP that repeated overheating can kill an engine quickly, so this needs to be solved immediately. ---
**Author:** ![TXdealer](https://avatars.discourse-cdn.com/v4/letter/t/50afbb/32.png) [@TXdealer](https://community.cartalk.com/u/TXdealer)\ **Post date:** [May 8, 2023, 2:23pm UTC](https://community.cartalk.com/t/buick-enclave-air-conditioning/190472/28 "2023-05-08T14:23:43Z")
Quick mention that the instrument cluster will actually display a specific warning if the engine is to hot and the AC is disabled. If error is not appearing, it is unlikely related to engine temperature. ---
**Author:** ![Jenniferjeffreys\_185139](https://avatars.discourse-cdn.com/v4/letter/j/6f9a4e/32.png) [@Jenniferjeffreys\_185139](https://community.cartalk.com/u/Jenniferjeffreys_185139)\ **Post date:** [May 8, 2023, 3:11pm UTC](https://community.cartalk.com/t/buick-enclave-air-conditioning/190472/29 "2023-05-08T15:11:23Z")
There is no warning that the engine is overheating. The AC cuts out randomly. There is no rhyme or reason. Some days it can be really hot outside (80’s) and sometimes lower temps. ---
**Author:** ![TwinTurbo](https://avatars.discourse-cdn.com/v4/letter/t/8baadc/32.png) [@TwinTurbo](https://community.cartalk.com/u/TwinTurbo)\ **Post date:** [May 8, 2023, 4:31pm UTC](https://community.cartalk.com/t/buick-enclave-air-conditioning/190472/30 "2023-05-08T16:31:43Z")
> [@Jenniferjeffreys\_185139](#): > > There is no warning that the engine is overheating. But the first shop said it was reading high: > [@Jenniferjeffreys\_185139](#): > > Then I took it and they said the thermostat was registering extremely high It doesn’t have to actually be overheating for the engine management computer to think it is- like a bad/intermittent signal from a flaky sensor. When it thinks it is higher than the trip point, it disables the A/C. Another potential indicator that this is what is happening is this: > [@Jenniferjeffreys\_185139](#): > > When I turn my car off, the engine fan is still going It does that when it thinks the engine needs to cool down. A decent mechanic (or friend) with an entry level scanner can read the engine temp (as the engine computer see it) and tell if that is what’s happening. Then it comes down to is it real or a bad sensor? ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [May 8, 2023, 9:22pm UTC](https://community.cartalk.com/t/buick-enclave-air-conditioning/190472/31 "2023-05-08T21:22:41Z")
> [@Jenniferjeffreys\_185139](#): > > [the engine fan continuing to run after engine is turned off is] not normal. It did not do that when I first bought the car. My Corolla’s engine fan always turns off when engine is turned off. But my prior VW Rabbit’s engine fan routinely would continue to run after engine turned off. The engine fan behavior varies car vs car. Since you aren’t seeing any dashboard overheating warnings, suggest to ask shop to display the coolant temperature using their scan tool. This will display the temperature the drivetrain computer measures, which may or may not be the actual coolant temperature. If I had this problem, that’s what I’d do as the next step. > [@George\_San\_Jose1](#): > > Why should a car fail to crank when the owner turns the key to “start”? > [@Jenniferjeffreys\_185139](#): > > It does not. That question was rhetorical, doesn’t apply to your car. I was attempting to address the poster above asking why an hvac door would behave that way? ; i.e. it behaves that way because something is broken, ---
**Author:** ![Jenniferjeffreys\_185139](https://avatars.discourse-cdn.com/v4/letter/j/6f9a4e/32.png) [@Jenniferjeffreys\_185139](https://community.cartalk.com/u/Jenniferjeffreys_185139)\ **Post date:** [May 13, 2023, 11:07am UTC](https://community.cartalk.com/t/buick-enclave-air-conditioning/190472/32 "2023-05-13T11:07:19Z")
The sensor was replaced last summer. It has been replaced again because evidently it was faulty. Hopefully this resolves the problem. ---
**Author:** ![davesmopar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/davesmopar/32/41750_2.png) [@davesmopar](https://community.cartalk.com/u/davesmopar)\ **Post date:** [May 13, 2023, 6:52pm UTC](https://community.cartalk.com/t/buick-enclave-air-conditioning/190472/33 "2023-05-13T18:52:53Z")
> [@Jenniferjeffreys\_185139](#): > > The sensor was replaced last summer. It has been replaced again because evidently it was faulty. Hopefully this resolves the problem. Hopefully whoever is using quality parts and not AutoZone junk, or the cheaper option at a given parts store… lol ---
**Author:** ![Jenniferjeffreys\_185139](https://avatars.discourse-cdn.com/v4/letter/j/6f9a4e/32.png) [@Jenniferjeffreys\_185139](https://community.cartalk.com/u/Jenniferjeffreys_185139)\ **Post date:** [May 13, 2023, 7:35pm UTC](https://community.cartalk.com/t/buick-enclave-air-conditioning/190472/34 "2023-05-13T19:35:38Z")
They used OEM parts (at least this time). It was under warranty. [Previous page](https://community.cartalk.com/t/buick-enclave-air-conditioning/190472.md?page=1)