Prospective buyers beware

[danielspivey]

Just trying to be consistent based on your posts. Calling me a bully, is just a way to tell me to shut up. I don’t.

Denial

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[elarse1]

I have noted one thing so far, maybe two, unsure of that though. One thing I DO note for sure - I leave it on auto most of the time. And it does a good job getting to temp. But once it's been running for a while, say I've driven over 30 minutes and it's warm in there, it kicks down and then you feel cold air blowing in and it doesn't warm back up again. Say it's set at 70 degrees, it does a good job of getting there, then settles down and maintains, then after a while it's like it kicks off and my wife even commented, I feel cold air now - and we checked the temp setting and it was at 71 at that time - yet you could tell it was cooling off in the cabin.
Choose defrost like I had to this am because the windshield was getting iced over fast and it kicks the fan on high, air gets really hot out the middle of the defrost, then you put it back to auto - and it doesn't get up to the temp you had it set at. Seems auto works fine at first, then kicks out and doesn't maintain that temp once it reaches it. When I hit defrost on part of our trip this am and then set it back to auto, it didn't stay at the 71 she had it set at and we both looked at it like what the heck? Why are we feeling cold air - the heat isn't even really on.
In short, auto works best, works fine until you change something and go back or until it's been on a while, then it drops back and doesn't maintain. You can manually manipulate it and get it warmer in there like she did, but auto did not maintain temp today.
Short runs under about 30 minutes it works great.
I originally thought it was working great, but after today and after realizing - hey she's right - it's not KEEPING it warm once it gets there... like it ramps up and kicks out hot air until it reaches temp, then back off and can't heat up again, like something sticking.

Hard to go to dealer with it because so far it's "just a gut feeling" that something isn't right. I need to actually track it better.

Since the temps here have been winter since I picked it up, never a need for AC and have run heat every time I've driven it I can't say how it would act outside of a cold day.

I think that's just how climate control works, because it's very similar to my Camry. The sensor/computer isn't nearly as bright as a human, so it initially sees that the temperature difference is 20 degrees or more and it goes full-bore on the heat and the fan. So you boil for a bit. Then, once the preset temperature is reached, it backs off. Since people generate heat, the system actually starts putting out cooler air to compensate,

What I do is aim the vents on my hands when it's in bananas-hot mode (my hands get cold) so it's not blasting on my face. Then when it switches to cool mode, I aim the vents way up so the cool air goes up nearer my head (we all need cool heads on the road anyway!).

-Erik

 

[drBassman]

I have a Sport-S.

The only thing about the HVAC that bothers me is the fact that, when I start the truck first thing in the morning and it is COLD outside, the fan comes on almost immediately, and blows COLD air on my feet. Ideally, the HVAC should wait until it knows the engine coolant temperature has warmed up before kicking the fan on...Even if HVAC would wait 2-3 minutes before the fan coming on so that the air at least has a chance of not being the same temperature as the outside air, it would be an improvement...

That being said, I haven't had the need for the A/C yet, so I can't comment on that side of the system...

 

[Gvsukids]

I have a Sport-S.

The only thing about the HVAC that bothers me is the fact that, when I start the truck first thing in the morning and it is COLD outside, the fan comes on almost immediately, and blows COLD air on my feet. Ideally, the HVAC should wait until it knows the engine coolant temperature has warmed up before kicking the fan on...Even if HVAC would wait 2-3 minutes before the fan coming on so that the air at least has a chance of not being the same temperature as the outside air, it would be an improvement...

That being said, I haven't had the need for the A/C yet, so I can't comment on that side of the system...

Do you have the automatic/up down arrows, or manual/dial HVAC?

 

[drBassman]

Do you have the automatic/up down arrows, or manual/dial HVAC?

Automatic.

 

[Gvsukids]

Automatic.

might want to get that checked out, unless its a "jeep thing"

 

[ACAD_Cowboy]

320 posts on how auto climate control works?

Sinusoidal rhythm typically spread across four degrees, two on either side of requested temperature which maximizes the amount of time the unit is providing "target" temperature. As it reaches upper set point it will stop providing heat and start blending cooled or outside ambient air to temper, as it reaches lower set point it will start providing heated air or outside ambient to temper.

You don't set it to x degrees and expect an unmodulated flow of x degrees air to maintain x degrees in the cabin, not with your 100w body(s) and 1000w sun. Plus dog breath, its a mystery why their breath is hotter then them.

I feel like the OP should go to the library or use the internet and read up on ASHRAE standards etc before complaining that the variable and dynamic air handling system keeps providing variable and dynamic air and warning us its a problem!

 

[danielspivey]

320 posts on how auto climate control works?

Sinusoidal rhythm typically spread across four degrees, two on either side of requested temperature which maximizes the amount of time the unit is providing "target" temperature. As it reaches upper set point it will stop providing heat and start blending cooled or outside ambient air to temper, as it reaches lower set point it will start providing heated air or outside ambient to temper.

You don't set it to x degrees and expect an unmodulated flow of x degrees air to maintain x degrees in the cabin, not with your 100w body(s) and 1000w sun. Plus dog breath, its a mystery why their breath is hotter then them.

I feel like the OP should go to the library or use the internet and read up on ASHRAE standards etc before complaining that the variable and dynamic air handling system keeps providing variable and dynamic air and warning us its a problem!

The main take away ftom this thread is the system is not explained very well by Jeep, The functionally sucks in a lot of people’s eyes. It doesn’t matter how in depth you explain the system it doesn’t change that people think it sucks.

 

[ACAD_Cowboy]

But this is how every modern automatic climate control works, should jeep also explain that night is dark, fire is hot and rain is wet? How much hand holding and ass wiping is enough?

 

[danielspivey]

But this is how every modern automatic climate control works, should jeep also explain that night is dark, fire is hot and rain is wet? How much hand holding and ass wiping is enough?

A lot of people think the system sucks (which it does) and your in love with it and think it’s more innovative than hot pockets... we get it.

Your comments with cuss words won’t change our minds... but nice, bold, manly try. A+ for your effort champ.

 

[ACAD_Cowboy]

Well I am sorry that what i said makes you feel the way you do.

The problem I'm sure lies directly with the truck itself. Mostly the percieved linear relationship between the price you paid and the perceived level of amenities you entitled to.

For arguments sake we can say you paid between 56k and 64k and when you look at other vehicles in this price bracket they have wonderful plush and quiet interiors with auto climate control that is nearly not there in terms of sound and air flow and it always feels the perfect temperature.

Which is how it should be.

But then you wanted very capable offroad abilities and fording depth and then you want to take the roof and doors off and then you don't want it to be too big on the outside or too small on the inside and all of this adds up to no hvac ducting in the floors or in the rear or venting in the roof structure. Packaging limits give you a single heater core, a single evaporator, a single fan and you are expecting big boy comfort based on what you paid and aren't getting it.

I get it, I do. I'm just at a loss for why its so controversial. When do we decry road noise as a design flaw, will climate control become the next death wobble? Why don't we all just accept jeep things for what they are because honestly if they were that big of a problem you would have bought something else by now.

 

[danielspivey]

Well I am sorry that what i said makes you feel the way you do.

The problem I'm sure lies directly with the truck itself. Mostly the percieved linear relationship between the price you paid and the perceived level of amenities you entitled to.

For arguments sake we can say you paid between 56k and 64k and when you look at other vehicles in this price bracket they have wonderful plush and quiet interiors with auto climate control that is nearly not there in terms of sound and air flow and it always feels the perfect temperature.

Which is how it should be.

But then you wanted very capable offroad abilities and fording depth and then you want to take the roof and doors off and then you don't want it to be too big on the outside or too small on the inside and all of this adds up to no hvac ducting in the floors or in the rear or venting in the roof structure. Packaging limits give you a single heater core, a single evaporator, a single fan and you are expecting big boy comfort based on what you paid and aren't getting it.

I get it, I do. I'm just at a loss for why its so controversial. When do we decry road noise as a design flaw, will climate control become the next death wobble? Why don't we all just accept jeep things for what they are because honestly if they were that big of a problem you would have bought something else by now.

My HVAC on my wagoneer when I was in high school in the 90s has a better system and was easier to get what I wanted out of it.

It is 2020 and they should be able to make a system that is easy to get what you want out of it. This system once again sucks.

My 2005 Wrangler had a great heating and cooling system. I could easily get what I wanted out of it with the top on and OFF. This system... nope it sucks.

so tell me how good of an idea is it to have a system that is AUTO with no true manual mode when the top comes completely off? Oh wait.. the system sucks.

for a 40-60k vehicle it should at least perform as well as my 2019 accord because that was only 29k right? Because with your logic paying 40-60k isn’t enough To have a vehicle with a decent HVAC system.

 

[ACAD_Cowboy]

Its not what you pay, its what you buy. In this case you are buying a collection of compromises that allow you to go where you want to go and do what you want, with or without doors or a roof, in deep water or shallow while being as light and compact as possible.

 

[danielspivey]

Its not what you pay, its what you buy. In this case you are buying a collection of compromises that allow you to go where you want to go and do what you want, with or without doors or a roof, in deep water or shallow while being as light and compact as possible.

If it’s “not what you pay” then why did you discuss price range in post above?

Compromise .... that’s BS. Every older Jeep I’ve owned has had an HVAC I could easily get what I want out of it. This thing is a struggle every time I get in the thing.

The entry level sport even has a true manual mode and all others Models should too. That auto climate doesn’t work so well with the top off does it?

the main point is yes, most of us love our Jeeps or JT. But, with all that innovation and attention to detail, couldn’t they have figured out a way to get the HVAC system to get what you wanted out of it and make a door frame that didn’t make a waterfall into the cabin every time you opened the door when it’s raining? They could have, but in your opinion not for 50k. They were too busy trying to find where they put “Easter eggs” I guess.

 

[Factoid]

I’ve never used the auto function as the manual set up works just like the older systems everyone keeps saying worked better.

I’m much more interested in where to store my doors and tops as the weather warms up so I can run around topless.

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