I have a high-mileage 99 chevy Tahoe and I've determined (mostly due to loud clanking noises) that the A/C compressor has failed and needs to be replaced.
Ok, so I've removed the compressor as well as the accumulator, the fr "Determ "Determine the amount of oil remaining in the compressor and add that amount."
Hmmm, confusing...
The problem is that there is no oil, at least none that I can find, in the accumulator or in the compressor. I do find "trace" amounts in that if I stick my finger in the accumulator there is a film of oil there as is to be expected.
So my question is HOW MUCH oil is to be added to this system prior to recharging with R134a? And where should it be added? One place in the service manual says add it to the compressor, another place says add it to the accumulator. Also, WHEN should it be added? Prior to evacuating the system or after evacuating but prior to adding the R134a?
I don't want to trash my new compressor before it even gets going...
Thanks, and any other tips on this particular system would be appreciated. BTW, this is the 4x4 4-door Tahoe w/ 5.7L V8. Has the rear A/C option as well.