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That would make sense, but that is not what they did with this vehicle, at least on the gasser.
Prius, on the other hand...
That seems like that would be expecting a lot from a small battery, when the engine is shut off. It would need to power the turn signals, UConnect, headlights/tail lights(at night), etc. AND a compressor.
What system did they use on the Prius?
 

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My 2017 Pacifica has A/C problems. going from cool to hot. Put temperature gauge into vent and videoed it happening. Dealer agrees it happens. Taken to different dealers and contacted corporate, being told to take it to another dealer. Anyone have a suggestion?
 

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That seems like that would be expecting a lot from a small battery, when the engine is shut off. It would need to power the turn signals, UConnect, headlights/tail lights(at night), etc. AND a compressor.
What system did they use on the Prius?
It’s not possible to run an electric Ac compressor from a 12v battery, they require too much power. As a rough comparison, your home central ac compressor has a dedicated 220v 40amp circuit. That is 8,800 watts, almost 12HP. It doesn’t actually use 40 amps, and that’s enough power for 5 tons (60,000BTU). The Pacifica probably has more along the lines of 2 tons cooling capacity. But still, such a compressor might require 1,500 watts of energy - about 2HP - to operate. At 14 volts, it takes more than 100amps of current to deliver 1,500 watts. So not practical to do so. Hybrids use the high voltage battery pack to run the electric compressor - 360 volts in the case of the Pacifica. Only takes 5 amps to get to 1,500 watts with that kind of juice.
 

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I have a 2017 Pacifica, intermittently the air conditioner only blows hot air. it does not code for a sensor problem, and since its intermittent, they dont see a problem. Anyone else having issues?

Also having my driver side sliding door corrected. After closing it tends to open up one additional time requiring a second closing.
My air is ice cold, my wife complains about it being too cold
 

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Brenda I had what seems to be a very similar issue. Right off the gate the AC will start blowing not cooled air. I took it to 4 different dealers only to be told they couldn't reproduce and therefore nothing they could do.
Finally one dealer kept it a few days and their tech drove it home and experienced the issue. They then replaced the compressor under warranty...
The whole ordeal was long and frustrating...especially being treated like a person that loves to spend time at a mechanic making stuff up...
 

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My 2017 Pacifica has A/C problems. going from cool to hot. Put temperature gauge into vent and videoed it happening. Dealer agrees it happens. Taken to different dealers and contacted corporate, being told to take it to another dealer. Anyone have a suggestion?
First -- I assume you are not talking about warm air when stopped if you have ESS - although I thought if the cabin gets too warm the engine starts up again.

Post 6 in this thread talks about a TSB with intermittent shorts in the A/C compressor.

I had an A/C problem -- see https://www.pacificaforums.com/forum/474-chrysler-pacifica-minivan-issues-problems/40022-intermittent-air-conditioning-non-ess.html#post525762
The A/C did not come on initially -- came on halfway home. Then stayed off the next 2 days. On my trip to the dealer, it was off until I (literally) reached the traffic light on the dealer's corner -- then it came on. They kept the car almost 3 weeks before they discovered a problem with the compressor.

There is another thread at https://www.pacificaforums.com/forum/337-off-topic-discussion/40263-c.html#post528183

As others have attested, intermittent problems are h*ll to track down.

Good luck.
 

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I just registered to the forums to add a +1. 2017 Pacifica with just under 30,000 miles and the A/C stopped working 3 weeks ago. The dealership couldn't get it in until today and it has been cold outside ever since, so I haven't needed to use the Air conditioning. They say that the A/C is working fine. They are going to test again this afternoon. If they still can't replicate it, I am planning to ask them about the TSB and ultimately I will likely request a loaner so that they can keep testing until it is replicated. I can see both sides of the argument, but it would be helpful if they could accept some sort of proof that there is an issue without needing to replicate it.
 

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Unfortunately, I guess Chrysler won't let them replace parts as warranty work if they don't have a good clue which one is the culprit. The TSB might help. I had 4 witnesses to the failure, but because it started working again they just kept testing it -- it failed on the 19th day they had it.
 

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I may have lucked out. I mentioned TSB 24-009-16 and he didn't find that, but found an identical one. The VIN was not part of the Rapid Response Transmittal, but after I suggested that I would take a loaner if they wanted to hold onto it until they could replicate it, he spoke to a tech and seemed ready to replace the compressor. This seems widespread enough that hopefully it will become easier for others to get it resolved as well. Anybody know if they are replacing it with an identical compressor or if they're using something different? I didn't think to ask at the time.
 

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Hi Brenda4523,

At ~1000 miles my Pacifica (No ESS) began blowing hot air intermittently. Within a day it was blowing hot only.

It had a bad compressor for the A/C. A local dealer is replacing it under warranty.
Interestingly, they gave me a RAM1500 as a loaner. That is a big truck.

Best,
dogbus.

Hello,
I've had my 2017 Pacifica (No ESS) for 2+ years and no issues... until about 3 weeks ago... began blowing hot air intermittently and eventually, blowing hot only. I dropped it at local dealer last night... just called to tell me the A/C compressor is leaking and needs to be replaced.
Fortunately, it is under warranty, but make take up to 5 days to get the part(s) and make the repair... providing me with a loaner...

So, apparently the manufacturer for the A/C Compressor of our beloved Pacificas is producing a DEFECTIVE product/part??
Million $$ question is: Are they going to replace mine with the exact same compressor? in which case, the odds are this problem will happen again, right??
 

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We truly like our Pacifica but the Service expertise & parts availability are concerning. AC issues are not a good thing here in Phoenix, so far ours only has a condensate mold smell & requires deodorizing every couple weeks.

12-mos left on the 36mo warranty, after that too much risk & I think the Pacifica will be replaced with another Brand.

Fiat - Chrysler - Renault : can only wonder what that will bring?
 

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We truly like our Pacifica but the Service expertise & parts availability are concerning. AC issues are not a good thing here in Phoenix, so far ours only has a condensate mold smell & requires deodorizing every couple weeks.

12-mos left on the 36mo warranty, after that too much risk & I think the Pacifica will be replaced with another Brand.

Fiat - Chrysler - Renault : can only wonder what that will bring?
They make really nice perfume in France! :grin2:
 

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For those with intermittent A/C issues....

Did compressor replacement fix the intermittent A/C issue where it will randomly start blowing non-cooled air?
 

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Exact same issue with 2017

I have the exact same issue as described on this thread with my 2017 Pacifica. We have had ours for a little over 2 years with 60K miles and it just started happening. It intermittently just blows hot, humid non-conditioned air. Sometimes, it will happen for 5-10 minutes and eventually the A/C kicks on. I took it to the dealer and, of course, they couldn't replicate the issue.

Was anyone on this forum successful in convincing the dealer that something was wrong? I'm still under an extended warranty.
 

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I have the exact same issue as described on this thread with my 2017 Pacifica. We have had ours for a little over 2 years with 60K miles and it just started happening. It intermittently just blows hot, humid non-conditioned air. Sometimes, it will happen for 5-10 minutes and eventually the A/C kicks on. I took it to the dealer and, of course, they couldn't replicate the issue.

Was anyone on this forum successful in convincing the dealer that something was wrong? I'm still under an extended warranty.
Going back to my olden days when I taught mechanics how to use Sun Electric automotive shop equipment, I recall this as being a symptom of moisture in the refrigerant (Freon back then). It was a fairly common problem in the 60's and 70's. The solution was a thorough evacuation (two or more hours on a vacuum pump), and recharge with fresh Freon.

Moisture in the system clogs the expansion valve with ice, causing it to not get cold. Modern systems come with a finite amount of moisture absorbent (desiccant) built in, extending the time before it fails, but if that amount is exceeded, then it will fail anyway. Sometimes poor (lazy, cheap, crooked) service procedures lead to failure to replace the desiccant.
 

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I have the exact same issue as described on this thread with my 2017 Pacifica. We have had ours for a little over 2 years with 60K miles and it just started happening. It intermittently just blows hot, humid non-conditioned air. Sometimes, it will happen for 5-10 minutes and eventually the A/C kicks on. I took it to the dealer and, of course, they couldn't replicate the issue.

Was anyone on this forum successful in convincing the dealer that something was wrong? I'm still under an extended warranty.
Have been dealing with the same A/C symptoms as described ever since we purchased our 2018 Touring L in March 2018:

June 2018 -- R1234YF refrigerant low -- replaced Schrader valve and recharged
Sept 2018 -- R1234YF refrigerant low again -- introduced dye in system, could not identify source of the leak; recharged again
May 2019 -- A/C intermittently stopping again -- different dealer "could not replicate issue" <-- arrgh
July 2019 -- A/C intermittent operation gets worse -- failed completely. Dealer finally finds the cause -- a very slow leak at the lower part of the condenser -- now visible due to the dye introduced 10 months earlier.

This issue appears to have come from the factory.

I will say that contacting Chrysler Cares (the most recent dealer visit) did assign a case specialist who was very responsive and helpful.
 

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Just following up on my post...

It doesn't seem like there is a leak of refrigerant because when it blows, the air is cold as normal. It is more like the compressor just doesn't kick in sometimes so it just blows HOT air until (and if) it does. The dealer (AutoPark Chrysler and Jeep) told me to bring it in when the issue happens so they can test. So, I did and then they tell me they are TOO BUSY and can't look at it for days, but I'm welcome to leave it with them. Ok, sure, let me leave it with you for the third time so you can just say the issue doesn't happen and you do NOTHING about it and I'm out of a vehicle for multiple days. This place is a joke. If I didn't have an extended warranty through them, I wouldn't be coming back for sure.

Unrelated, they found a leak in the motor mounts on the car (to be replaced under warranty once they get the parts in) and the check engine light came on (due to leak in emissions evaporator). I've already had two other repairs under warranty and at least 3-4 recalls. I also have intermittent really hard shifting in the transmission that they can't reproduce as well. I sure am glad I got the extended warranty on this.
 

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Update...the AC finally died for good. The issue was a failed clutch that wasn't engaging the compressor. The compressor was replaced under my CNA extended warranty. That explains the intermittent nature of the issue.
 

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It would make sense for the Pacifica to have an electric AC compressor so that it could continue running when the engine turns off.
Mine has an electric A/C compressor. :grin2: It also does not have a starter, alternator, or power steering pump. :grin2:

The only items my belt runs around are the main crank, idler, tensioner, and water pump.:nerd:
 
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