# Black tahoe, air conditioning

**URL:** <https://community.cartalk.com/t/black-tahoe-air-conditioning/1215>\
**Category:** Maintenance/Repairs\
**Tags:** tahoe\
**Created:** [July 2, 2007, 5:30pm UTC](https://community.cartalk.com/t/black-tahoe-air-conditioning/1215 "2007-07-02T17:30:09Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Monique](https://avatars.discourse-cdn.com/v4/letter/m/7993a0/32.png) [@Monique](https://community.cartalk.com/u/Monique)\
**Post date:** [July 2, 2007, 5:30pm UTC](https://community.cartalk.com/t/black-tahoe-air-conditioning/1215/1 "2007-07-02T17:30:09Z")

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I have a '96 tahoe. Sometimes when I use the air conditioner after about 50-100 miles the ‘service engine soon’ light comes on and the rpm’s move to 2000 going at 65 mph, normally they run just 3 notches below the 2000 mark, then when i stop at a stop light or so and start off again, the kick out gear slips or makes a loud noise. After about a half hour or so, when i restart it, it shifts normally. I have asked almost everyone, and nobody really knows.

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**Author:** ![star882](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/star882/32/39_2.png) [@star882](https://community.cartalk.com/u/star882)\
**Post date:** [July 2, 2007, 8:18pm UTC](https://community.cartalk.com/t/black-tahoe-air-conditioning/1215/2 "2007-07-02T20:18:50Z")

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Go to Autozone when the light is on and have them scan the codes.  
Without more information, I think the problem could be a bad ground or intermittent short circuit, or maybe a loose connection in the wiring.