CHEVY A/C

1997 Chevrolet Tahoe

Tiny

Kimmiepoo22

August, 16, 2010 AT 4:15 PM

Air Conditioning problem
1997 Chevy Tahoe V8 Two Wheel Drive Automatic 200000 miles

i got my a/c charge about 2or3 months ago it was working find intill 2 week ago it not getting cool what do I do now

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Tiny

Wrenchtech

August, 16, 2010 AT 4:36 PM

The fact that you had to recharge it once indicates it has a leak. The time span until it happened again indicates it's a pretty good size leak. It needs to be leak tested to find the leak and repair it.

Tiny

Kimmiepoo22

August, 16, 2010 AT 4:53 PM

When I was at the shop and I told them I have a leak they said they do not see it leaking. I want to know is it something I can do to stop the leak myself

Tiny

Wrenchtech

August, 16, 2010 AT 5:00 PM

You need to just find a different shop. This is a clear, colorless, odorless, pressurized gas. You need either a very high grade electronic leak detector or add U/V dye to the system and look for a leak with a U/V light and glasses. This requires a real talent and a lot of experience but there is no question the leak is there, they just aren't smart enough to find it. This is a sealed system. A leak is the only way for the refrigerant to come out. Some components are very hard to access and leak check also so you need someone that specializes in or does a real lot of A/C work to find it. DO NOT use any of those snake oil sealers sold. All they do is plug up the system and everybodies equipment.

Tiny

Kimmiepoo22

August, 16, 2010 AT 5:07 PM

I when to 3 shop over the past 2years and they said the same thing they do not see no leak what to do now

Tiny

Wrenchtech

August, 16, 2010 AT 5:09 PM

You find a different shop. It obviously IS leaking and you just need someone that has experience in finding them. It should be that difficult. It's a good size leak.

Tiny

dwb812

September, 2, 2010 AT 6:29 PM

You say they don't see a leak. Has anyone offered to pump down the system and check it for leaks? This is a common problem and is usually the connection under the air box in my experience. I don't know what it is about the location of this junction, but the O-rings in this connection are proned to failure and leaking. It is the number one leak I find in these vehicles including my own 1999. The system still needs to be pumped down and emptied of refrigerant before opening the system and it would pay to have a complete O-ring/seal kit installed if the budget allows it. I agree tho', no snake oil leak sealers. They don't work and gum up expensive equipment.

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