Question about 2005 Jeep Grand Cherokee

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Air conditioner only works while moving. The AC stops cooling when stopped and idleing. Anyone know what causes this?

2005 Jeep Grand Cherokee air conditioner only works while moving. The AC stops cooling when stopped and idleing. Anyone know what causes this?

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  • heloav8r May 25, 2009

    I charged the freon to no avail. Should have included thie info on first post.

  • heloav8r May 25, 2009

    Thank you. I did it myself. Now I'll try a shop.

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  • Master
  • 272 Answers

Your freon level is low, and not circulating on slow compressor speeds. Stop by any shop that has a sign stating they work on a/c and they can recharge it for you in a few minutes. Here where I live they charge about $20.00 labor plus a charge for the freon they put in, they sell it by the pound.

Posted on May 25, 2009

  • rjbeg123 May 25, 2009

    I always use a shop because they don't just top off the antifreeze. They pump out what's there, removing all of the moisture and air that might be in your system and then replace it. You get credited for the freon out and only pay for the extra they need to put in. It could be that your accumulator has too much moisture in it to work effectively at lower pressures that you have at idle, or that your compressor is having problems. Did you or a shop change the freon?

  • rjbeg123 May 25, 2009

    It's one of the very few things i don't do myself. I had a bad experience with topping off my freon with one of those do it yourself kits from NAPA. Ended up with a $300.00 plus repair job after blowing an O-ring. I have an a/c only shop near me and topping off is the most frequent reason they see for major failures.

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