# Cold Start Noise **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** belts, noises, airconditioning, start\ **Created:** [June 18, 2008, 1:52pm UTC](https://community.cartalk.com/t/cold-start-noise/15511 "2008-06-18T13:52:09Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![cpblackb](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cpblackb/32/5619_2.png) [@cpblackb](https://community.cartalk.com/u/cpblackb)\ **Post date:** [June 18, 2008, 1:52pm UTC](https://community.cartalk.com/t/cold-start-noise/15511/1 "2008-06-18T13:52:09Z")
When I cold crank my car with my AC on my car emits a horrible squealing noise. It sounds like a belt slipping. When I turn the AC off the squealing stops. After about 15 seconds of driving I can turn the AC back on with no problems. ---
**Author:** ![cpblackb](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cpblackb/32/5619_2.png) [@cpblackb](https://community.cartalk.com/u/cpblackb)\ **Post date:** [June 18, 2008, 1:56pm UTC](https://community.cartalk.com/t/cold-start-noise/15511/2 "2008-06-18T13:56:54Z")
1997 Jeep Grand Cherokee straight 6 4.0L ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [June 18, 2008, 2:14pm UTC](https://community.cartalk.com/t/cold-start-noise/15511/3 "2008-06-18T14:14:02Z")
Your A/C should not be turned on when you are cranking the engine, as that is putting a heavier load on the starter motor. Also, it is a good idea to run the engine for a minute or so before you engage the A/C. Anyway, I would suggest that you check the belt tensioner. It sounds like the belt is slipping and the tensioner could be the problem. ---
**Author:** ![cpblackb](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cpblackb/32/5619_2.png) [@cpblackb](https://community.cartalk.com/u/cpblackb)\ **Post date:** [June 18, 2008, 5:14pm UTC](https://community.cartalk.com/t/cold-start-noise/15511/4 "2008-06-18T17:14:29Z")
Thank you! I will have this checked.