Question about 1997 Jeep Grand Cherokee

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A/c won't blow cold air. what type of freon should I use to recharge.

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  • Master
  • 3,533 Answers

Its 134-A and you need a charge hose and hook up to the low side try this website to see if they have your truck listed www.autozone.com

Posted on May 25, 2009

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  • Jeep Master
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R134a .. You can buy it almost anywhere, from Walmart to the dealer.

Posted on May 25, 2009

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  • Jeep Master
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R134 i believe, there should be a stick somewhere under the hood on what type and how much the system takes. Here is a link that may help you recharge you A/C system.
Good luck: http://www.cyberbright.com/autobin/air_conditioning.htm

Posted on May 25, 2009

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Posted on Jan 02, 2017

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SOURCE: AC is not blowing cold air. How do I add freon?

What you will be looking for (in your engine compartment) looks almost like a large valve stem that you would see on a tire. It will probably have some kind of plastic cap on it.

It shouldn't be that difficult to find. You may want to search for an engine compartment diagram for your make/model/year vehicle.

Posted on Mar 19, 2009

greg_margo
  • 1959 Answers

SOURCE: the ac only blows warm air, have recharged it with freon but it only cools minutes before blowing warm again, could find no leaks

There are special cans of R-134A with dye in them for detecting leaks. Most leaks occur around the fittings near the compressor. Recharge the system with the leak detector can or R-134A. There are also cans of R-134A with an additive to stop leaks. I would use these products to either detect your leak or to stop it. Best of luck.
Greg

Posted on May 24, 2009

  • 272 Answers

SOURCE: 1999 Chevy Cavalier A/C blows hot air

More likely the recharge blew a o-ring and you have a leak. When your Cavalier was blowing hot air and a recharge fixed it that means it was low on freon which lets o-rings dry out, go back to the shop and have them leak test it. They use a pressurized dye to find the problem. If it's blowing it's not the cooling fan relay, they may have meant compressor relay but I'd have a leak test done first it's not expensive and easier that chasing unknown possibilities.

Posted on Jun 03, 2009

  • 5495 Answers

SOURCE: 97 Olds Aurora AC blowing warm air a day after recharging system

Several- The system should hold freon for years without leaking. There are pressure switches and they cut off the compressor with an undercharge and an overcharge. You need guages to measure the charge. There are testers the A/C shops have called "sniffers" which can detect a leak. If you have no leak then you need a technician to add or remove freon to get the concentration right. Or you need guages.

Posted on Jun 12, 2009

  • 4 Answers

SOURCE: 2006 Chevy Equinox A/C freezes

Actually there is a evaporator tempature sensor that has gone bad that is causing it to freeze up like that because it cycles the compressor on and off to prevent this freezup and vwhen the sensor goes badf the compressor will continuasly run all the time. $4e0.00 part.

Posted on Jul 07, 2011

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Hello, There are a number of reasons that may cause your A/C to blow hot air. The compressor belt could be loose or broken, the A/C system could be low on freon, the A/C compressor clutch could be defective or the fuse could be blown, or the A/C mixing door could be stuck open just to name a few.

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