# AC quirk - 05 Caravan **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [June 20, 2011, 12:56pm UTC](https://community.cartalk.com/t/ac-quirk-05-caravan/65573 "2011-06-20T12:56:25Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![jkn](https://avatars.discourse-cdn.com/v4/letter/j/ba9def/32.png) [@jkn](https://community.cartalk.com/u/jkn)\ **Post date:** [June 20, 2011, 12:56pm UTC](https://community.cartalk.com/t/ac-quirk-05-caravan/65573/1 "2011-06-20T12:56:25Z")
I have 05 Caravan, 4 cyl, 115k. Runs fine (just got back from a 2000 mile trip) that seems to have a quirk or something with the AC. When I have the AC on and stop at a light, it feels like it hesitates several times. I almost think it’ll stall (never has). I usually end up turning off the AC while we’re at the light, and start it back up when I accelerate. When the AC is off, there is no hesitation. Also, If I put it in park, and we have the AC on, no problem. I rarely, if ever, have the recirculation going. One thing of note: I usually wait until I’m out of our neighborhood and on the main street before turning it on. That means the windows are down until I turn it on. When I do, occasionally I hear a sound that best can be described as similar to the sound of loosening a tight lug nut. Still, as long as I’m driving, there is no hesitation and it cools fine. ---
**Author:** ![chaissos](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/chaissos/32/2347_2.png) [@chaissos](https://community.cartalk.com/u/chaissos)\ **Post date:** [June 20, 2011, 1:00pm UTC](https://community.cartalk.com/t/ac-quirk-05-caravan/65573/2 "2011-06-20T13:00:56Z")
> "When I do, occasionally I hear a sound that best can be described as similar to the sound of loosening a tight lug nut." Could this be a squealing belt? When was the last time the serpentine belt was replaced? ---
**Author:** ![jkn](https://avatars.discourse-cdn.com/v4/letter/j/ba9def/32.png) [@jkn](https://community.cartalk.com/u/jkn)\ **Post date:** [June 20, 2011, 2:09pm UTC](https://community.cartalk.com/t/ac-quirk-05-caravan/65573/3 "2011-06-20T14:09:10Z")
I don’t think it’s the belt. Granted, it’s probably close to the time to change it, but I don’t have any other belt issues. No squealing, chirping, etc. at all. The sound is very brief, just the time it takes me to turn the AC on. ---
**Author:** ![chaissos](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/chaissos/32/2347_2.png) [@chaissos](https://community.cartalk.com/u/chaissos)\ **Post date:** [June 20, 2011, 2:30pm UTC](https://community.cartalk.com/t/ac-quirk-05-caravan/65573/4 "2011-06-20T14:30:49Z")
To me, not an A/C guy, it sounds like the compressor clutch is on it’s way out and/or the compressor is binding, but I’d have to have someone more familiar with this than me verify it. There could also be a problem with the idle air control, causing it to almost die at low RPM’s. ---
**Author:** ![jkn](https://avatars.discourse-cdn.com/v4/letter/j/ba9def/32.png) [@jkn](https://community.cartalk.com/u/jkn)\ **Post date:** [June 20, 2011, 2:53pm UTC](https://community.cartalk.com/t/ac-quirk-05-caravan/65573/5 "2011-06-20T14:53:59Z")
Thanks! I was thinking it may be the clutch. It doesn’t have any other idle issues. There is no problem at all when the AC is off. ---
**Author:** ![knfenimore](https://avatars.discourse-cdn.com/v4/letter/k/9fc348/32.png) [@knfenimore](https://community.cartalk.com/u/knfenimore)\ **Post date:** [June 20, 2011, 6:25pm UTC](https://community.cartalk.com/t/ac-quirk-05-caravan/65573/6 "2011-06-20T18:25:21Z")
Have the plugs been changed. I had a guy bring me a Honda that would not idle with the AC on. His plugs were very worn. Replaced them and the wires and it ran like a top. ---
**Author:** ![jkn](https://avatars.discourse-cdn.com/v4/letter/j/ba9def/32.png) [@jkn](https://community.cartalk.com/u/jkn)\ **Post date:** [June 20, 2011, 6:45pm UTC](https://community.cartalk.com/t/ac-quirk-05-caravan/65573/7 "2011-06-20T18:45:57Z")
Plugs and wires are sitting in a bag in the house. Maybe I’ll get a chance this weekend. Thanks.