Does anyone in hot weather notice this?

jeepsterchris · Sep 15, 2016

So I've searched around, and never found the right combinations of words...but...

Does anyone have a problem with serious power or acceleration loss with your A/C on? Ever since I traded in my 13 for my 14 (and moved to the desert) I've noticed my acceleration, hill climbing on the highway, and just general all-around power loss when my a/c is on. I have never had a car that has had such a noticeable lag with the ac on...not even my 13 JKU.

It's really annoying.

catahoula · Sep 15, 2016

You will notice or experience that with any vehicle. At least I have with mine

jeepsterchris · Sep 15, 2016

catahoula said:
You will notice or experience that with any vehicle. At least I have with mine

Grrr...I guess maybe its because I moved from Seattle to this god forsaken desert so I use it all the time now, but I swear its 10 times worse than my 2013.

Kilroy · Sep 16, 2016

jeepsterchris said:
Grrr...I guess maybe its because I moved from Seattle to this god forsaken desert so I use it all the time now, but I swear its 10 times worse than my 2013.

Where in Washington? Or Seattle what area

Jaimegomez8 · Sep 16, 2016

Here in California having the ac on is no problem being that traffic is ridiculously heavy all the time so we don't worry about losing power ::cheesy

Nicalife · Sep 16, 2016

Here in Carson City, NV, same issue! Sad and embarrassing

Napalm · Sep 16, 2016

I've always just thought it was gutless because it was a Jeep.. Hah.

Seriously though, I also experience this. Here in Texas you have to run your AC pretty much year round except for Christmas.

bigcale · Sep 16, 2016

Always, running the AC compressor is a power loss regardless of weather. As an aside, most vehicles also run the AC compressor when the defroster is selected.

bthomas · Sep 16, 2016

Hell, I don't run good when it's 115° either! Disclaimer: I'm not a scientist, or a race engine builder, I have no hard data to back myself up here, it's just something I've noticed in 40+ years of being a gear head in the desert. I've thought for years that it has as much to do with air density as it does drag from the compressor. When it's hot and humid, there's less oxygen in a given amount of air, cooler drier air contains more oxygen. It has always seemed that everything I ever owned ran better, AC or not, in the cooler weather. Noticed it with dirt bikes, nitro r/c cars, boats, and our vehicles. It's worse on a carbureted engine where there's no FI system to compensate for atmospheric change. I don't know what would have changed from your 13 to your 14, but I agree, I feel it to, and it sucks!

stormtroopedjk · Sep 16, 2016

I notice it. I live in Vegas so our summers are fairly intense too lol temp gauge goes up on mine as well

mudmobeeler · Sep 16, 2016

No, I don't use ac. I bought a jeep and run topless and doorless as much as possible.

Sessoms14X · Sep 16, 2016

mudmobeeler said:
No, I don't use ac. I bought a jeep and run topless and doorless as much as possible.

Same here, I bet I've used my AC maybe a handful of times. I just love that breeze much more on a summer day

TRLJNKY · Sep 16, 2016

Hell I turn mine on than when im ready turn it off and let her loose. Who needs a Ripp when you can Jedi Mind trick yourself into thinking you have one lol. Yeah its a dog with the AC on. Try to run without it as much as possible.

mudmobeeler · Sep 16, 2016

You should try a 4 cyl YJ on 35s with ac. That's a dog tryin to pull a train. Lol.

notnalc68 · Sep 16, 2016

Mines pretty much on high, from May to the first of October, in Mississippi. I've always noticed a power loss, over not running the AC.

jeeeep · Sep 16, 2016

I notice it after I've been up in higher cooler elevations and return to Texas.

Also lose noticeable mpg

Donner85 · Sep 16, 2016

I keep the top and doors off most of the summer but the few times I'm all closed up and have the ac on I definitely feel a little loss of power when going uphill on highways. Back roads it's not to bad.

cozdude · Sep 16, 2016

jeepsterchris said:
So I've searched around, and never found the right combinations of words...but...

Does anyone have a problem with serious power or acceleration loss with your A/C on? Ever since I traded in my 13 for my 14 (and moved to the desert) I've noticed my acceleration, hill climbing on the highway, and just general all-around power loss when my a/c is on. I have never had a car that has had such a noticeable lag with the ac on...not even my 13 JKU.

It's really annoying.

You should have been in my 95 geo prizm then with me and all 95 hp that motor had on a good day. If you turned the ac on and punched it the car didn't move lol.

In all seriousness tho, if your ac is blowing super cold than i wouldn't worry about it to much. If you are worried you can always bring it to the dealer and have them do what's called a performance check on it for you to just make sure the whole ac system is operating as it should

Goldeneagle1LC · Sep 16, 2016

Never noticed it, but then in Central Florida the A/C is always on. It may also have something to do with the programming as well. The computer may not be as adept as managing the fuel mixture. With the hot air the mixture has to be leaned to maintain power.

jeepsterchris · Sep 20, 2016

Thanks for the info / advice / validation folks! I guess I'll just have to tolerate it for a few more weeks..then its top off until May!

Does anyone in hot weather notice this?

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