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The o-ring that will not seal

70rustrunner on Wed September 02, 2009 6:44 PM User is offline

Year: 1995
Make: Pontiac
Model: Firebird
Engine Size: 5.7
Refrigerant Type: R134a
Ambient Temp: 90

Replaced the accumulator. Had to get a 1994 one because the fittings for the 1995 one were clocked wrong for the hose from the accumulator to condenser. Used the o-ring that came with the accumulator on the hose fitting on the condenser side. It leaked a lot. Found one with a larger cross section and tried it. Leaked a little less. Got a genuine GM one from the dealer. Now it leaks less but still leaks, The hose from the condenser to the accumulator does not look like a 1995 style. It did however seal to the old accumulator. What am I doing wrong that I cannot get it to seal?

HVargas on Wed September 02, 2009 7:07 PM User is offlineView users profile

I show all driers for 94-97 5.7L Firebirds as being the same. Are your fittings 90* from each other or more around 120*from each other. The 3.8L had a different drier and that is what might have happened. Same threads but the angle may put more stress on the lines while trying to seal.


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70rustrunner on Wed September 02, 2009 7:33 PM User is offline

The one I ended up using has the fittings about 120 degrees apart. The other one would not line up with the hose.

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