What is causing the freon leak in my 2006 Pontiac Grand Prix

Asked by Sep 10, 2014 at 11:08 AM about the 2006 Pontiac Grand Prix Base

Question type: Maintenance & Repair

It continues to leak freon. It lasts only 4-5 days. They have replaced the condensor which was leaking and the o-rings. Checked the hoses and can't find the leak. Any ideas?

6 Answers


Has the system been dyed? That will help in locating the leak if it is not obvious.

Yes, that is how they found the condenser was leaking and 1 o-ring leaking, but they replaced all o-rings just to be safe.


Evaporator maybe leaking, they are hard to check as you have to disassemble the dash, if the shop has an electronic 134a leak detector they can put the probe in the drain to see if it detects a leak inside.

That doesn't sound like it's going to be cheap to fix. Luckily the auto shop doesn't charge me each time I take it back, but eventually I know they are going to stop being so nice.

Well hope the 3rd time is a charm, they said it was a bad fitting on the new condenser. I guess I'll find out in 4-5 days if they are right.


That's a good garage, keep them! A/C leaks are a pain to track down, and evacuating and re-filling can be costly. Hope they got it nailed this time!

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