Another HVAC thread... - Jeep Garage - Jeep Forum

Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WK2 - > Trouble Shooting/Problems/Service

Join Jeep Garage Today
Thread Tools Display Modes
Old 10-17-2015, 03:56 AM
Join Date: Aug 2015
Posts: 13
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 630
Cyberium is on a distinguished road
Another HVAC thread...

Bought my 2015 Grand Cherokee Altitude 2 months ago and seem to keep having HVAC issues. When I start the vehicle, the HVAC unit makes a cracking sound, which IMO you shouldn't hear in a brand new 2015 vehicle. The other issue is the A/C compressor sounds like it cycles on and off every 5 seconds which causes the "Darth Vader" hiss inside the cabin. Maybe related... the A/C was never that cold to begin with.

But something else I just noticed... when I have the air selected for Front Defrost and Feet, air is also blowing out of the driver side vent.

I already brought the Jeep to the dealer to check into the A/C compressor / hissing sound and the tech said "Normal operation".

I've owned many cars, and I KNOW no brand new vehicle should have these types of issues.

Can anyone suggest DIY fixes... or is another trip to the stealership in order?

Reply With Quote
Sponsored Links
Old 10-17-2015, 08:56 AM
MDBones's Avatar
My Jeep: 2016 3.6L WK2
Join Date: Mar 2014
Location: Wisconsin's West Coast
Posts: 3,834
Thanks: 717
Thanked 673 Times in 555 Posts
Rep Power: 10949
MDBones has a reputation beyond reputeMDBones has a reputation beyond reputeMDBones has a reputation beyond reputeMDBones has a reputation beyond reputeMDBones has a reputation beyond reputeMDBones has a reputation beyond reputeMDBones has a reputation beyond reputeMDBones has a reputation beyond reputeMDBones has a reputation beyond reputeMDBones has a reputation beyond reputeMDBones has a reputation beyond repute
Re: Another HVAC thread...

LOL... I don't care what year you're talking about, Jeep will never be remembered for its stellar HVAC performance on either the heating or cooling side.

Every vehicle I've ever owned (including non-Jeep) has had one performance quirk or operating peculiarity covering everything you mention above and more.

That cracking sound you hear is most likely the blend doors opening/closing to match what you have the HVAC set to do.

It's not unusual for the compressor to cycle on/off like that under certain conditions. My Accord does that... and what is most irritating about it is that it also kicks the overly loud electric cooling fan on/off at the same time.

Anytime you have a defrost setting on you're going to get a little air out of the driver/passenger side vents... even though there are dedicated side window vents in the pillars.

Other than the compressor cycling, my 8 year old Accord's HVAC system still cranks out cold air and heat when and where you want it... and it does it better than any Jeep I've ever owned.

I don't know if there are any DIY fixes for your complaints. And having the dealer mess with it may create more problems than will be solved.
Reply With Quote
Old 10-17-2015, 06:52 PM
eugene3524's Avatar
Join Date: Sep 2013
Posts: 92
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 1418
eugene3524 is on a distinguished road
Re: Another HVAC thread...

it may be your blend door actuator going...jeeps are terrible with that, I had 3 actuators fail in one month, 1 for the blend door under driver side dash, and both driver side doors lock actuators, all out of warranty
Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Can't control HVAC - Looking for part number for HVAC Circuit Control Board GoldenBear03 Trouble Shooting/Problems/Service 8 05-03-2014 10:51 AM
Another day - another 2k14 Summit issue jeepman917 Trouble Shooting/Problems/Service 24 06-24-2013 06:09 AM
Another day another Mod CatMan879 Interior/Exterior/Visual/Lighting 7 05-10-2012 09:07 PM

» Premium Vendor Showcase
Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 05:04 PM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community is in no way associated with or endorsed by FCA US LLC. Chrysler, Dodge, Jeep, Ram, Mopar and SRT are registered trademarks of FCA US LLC.