AC Quit

[TXNav]

2021 Navigator Reserve. Was driving this afternoon on the freeway and all a sudden we felt the temp getting warm. Lowered the temp only to realize the air coming out of all vents was warm and humid. It was like the AC compressor just all of a sudden quit…got off the freeway and it came back for a bit but within 5 min it faded again. Gonna call the dealer in the morning since it’s under warranty, but any ideas?

 

[Black Label]

Did I just see you post this on FB?

 

[TXNav]

Sure did! Started to type again and then got lazy and just did the ole copy paste! Figure I try a reach a wider brain trust!

 

[bbf2530]

2021 Navigator Reserve. Was driving this afternoon on the freeway and all a sudden we felt the temp getting warm. Lowered the temp only to realize the air coming out of all vents was warm and humid. It was like the AC compressor just all of a sudden quit…got off the freeway and it came back for a bit but within 5 min it faded again. Gonna call the dealer in the morning since it’s under warranty, but any ideas?

Hi TXNav. Here is my opinion: Assuming your 2021 Navigator is still within the 4 year/50,000 mile New Vehicle Warranty, bringing it to the Dealer is the best...and only thing you should do.

It could be any of a multitude of causes, and trying any self-help suggestions may wind up getting it working just long enough to run out of warranty. Although probably not, in the case of AC systems.

Other than curiosity, blind Internet guesses and suggestions for an issue like this are not worth much. And you want it to not be working when you bring it to the Dealership. They can't diagnose and fix what isn't broken.

Let us know how you make out and good luck.

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[TXNav]

Yes, it's obviously going into the dealer. With that being said, I'm asking here in case there's a weird nuance/quick fix that folks have come across before. taking it in is a pain with the lack of loaners and logistics. Vehicle has less than 10k miles on it and isn't even a year old, so even i found a quick fix now it'll still get looked at in the long run.

 

[Action]

If the compressor kicked off and then back on, usually that would mean the refrigerant level is good.
A sensor or input signal was the cause.
Not exactly a quick fix

Action

 

[bbf2530]

Yes, it's obviously going into the dealer. With that being said, I'm asking here in case there's a weird nuance/quick fix that folks have come across before. taking it in is a pain with the lack of loaners and logistics. Vehicle has less than 10k miles on it and isn't even a year old, so even i found a quick fix now it'll still get looked at in the long run.

Hi TXNav. Yes, I 100% understand why you asked here. For the same reason everyone else asks here and on other forums.

However, as I tried to explain...Since it is relatively safe to assume your vehicle is still within the 4 year/50,000 mile New Vehicle Warranty, it would be better not to try self-help "quick fixes".

Again, the reason for that is the following: Keep in mind once you try a quick fix/band-aid and it works, you will not be able to bring your vehicle in for a repair until the problem occurs again, since the Service Department can't diagnose and fix many/most problems if it is not happening right then.
In other words, you can't bring your vehicle in while it is working properly and say, "My air conditioning is working now, but would not work last week. Please find out what the problem is and fix it". If you do, they will tell you to "Bring it back again when it is not working." And your warranty may run out by then.

Far too many times, owners who find some online "quick fix" discover the "quick fix" (i.e. things like battery disconnects, system resets, etc.) only put a temporary band-aid on the problem. However, the underlying defect/problem/cause was still there. And the underlying cause will most often rear its ugly head later, and lead to it happening again. And Murphy's Law tells us that it will happen again. Usually at the worst time. Usually after the warranty has expired and we have to pay for the repair.

You are obviously free to do whatever you wish with your own vehicle. And my reply will not hinder anyone else from posting their "quick fix", if they know one.

I'm simply giving you advice learned from many years of being taught by others who knew what they were talking about, and subsequent experience.

Keep us updated and good luck.

 

[Mark-P]

I agree with taking to the dealer. But a lot of the times the dealer needs some hints as to what is the fix and it is way to easy for the tech to say cannot duplicate problem.

I had that with my pinion seal that i knew was dripping on my garage floor and investigated it myself to see wet seal and area below the seal.

Tech did not actually witness a drip and said there was no leak.

I had to take the service manager out to the bay. Made the tech put it back in the air and take the bottom cover off and show him the wet area. He still sided with his tech and said it was assembly fluid.

I did not buy that told him i wanted the seal replaced and they ordered one in and replaced it. Now no more drips.

Just sayin.

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[bbf2530]

I agree with taking to the dealer. But a lot of the times the dealer needs some hints as to what is the fix and it is way to easy for the tech to say cannot duplicate problem.

I had that with my pinion seal that i knew was dripping on my garage floor and investigated it myself to see wet seal and area below the seal.

Tech did not actually witness a drip and said there was no leak.

I had to take the service manager out to the bay. Made the tech put it back in the air and take the bottom cover off and show him the wet area. He still sided with his tech and said it was assembly fluid.

I did not buy that told him i wanted the seal replaced and they ordered one in and replaced it. Now no more drips.

Just sayin.

Hi MP. LOL...I agree with you 100% that demonstrating/showing an issue to the Service Advisor or Tech is the way to go (as opposed to, for example, just handing them the keys, saying "I have a leak", and leaving...lol). In fact, I recommend that all the time.

However, that is a lot different than looking for online "quick fixes" as band-aids for a problem, while the vehicle is still under warranty. Doing that can/will eventually cause a vehicle owner money, out of their own pocket, for the reasons already explained.

For example: If the OP temporarily cures his inoperative AC system issue with an online "quick fix", he will not be able to demonstrate to the Service Advisor or Tech that it is not working, as you did with your leaking seal.

Either way, we can only offer advice, then it is up to a vehicle owner to do what they feel is best or simply want to do.

Just sayin'.

Good luck.

 

[TXNav]

Just spoke to the dealer. Scratching my head on this one...apparently it's the entire PCM that needs to be replaced. He said there's something failing that's causing the computer to not let the clutch engage. I've never heard of this being the cause, but luckily they're able to get one (which i was terrified they wouldn't be able to). Guess we'll get it in and see! Good news is my seat memory module came in as well, so hopefully this will also fix the elusive steering wheel memory issue i've been battling!

 

[Action]

Interesting.

If it is covered under warranty.
If the process to get it in, repaired and get it back is not to painful
If the issue is resolved when you get the car back.

Then I would not really care.
Just seems a bit odd.

Action

 

[TXNav]

Interesting.

If it is covered under warranty.
If the process to get it in, repaired and get it back is not to painful
If the issue is resolved when you get the car back.

Then I would not really care.
Just seems a bit odd.

Action

I'm right there with you. I called Monday morning and they asked if i could bring it to them instead of the pickup/dropoff. I gladly drove in and drove out with a loaner (nautilus). Would I like an Aviator or Navigator? Sure, but I've got wheels so we're covered. They've worked me in and if it's fixed when i go pick it up.... I'll just keep driving it, but sure seems odd...

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