Intermittant A/C operation.

[Rhino]

An update on my A/C. After a few weeks of using it off and on it seems to be much better. Not exactly sure why, but it seems to. Pressures are still holding steady, with no spikes/increases.
The only thing that I'm not quite happy with is that the A/C warms up under moderate acceleration. Not a huge deal, but a little inconvenient.
Out of curiosity I cut open the orifice tube. It was clean, with no signs of obstruction. The compressor and lines looked good when I had everything apart. No shavings or foreign material. All signs are pointing to an over fill of oil or moisture in the refrigerant. Lee, I would absolutely agree that it was some sort of obstruction on the high side.



Over all I'd say it was a good investment in time. My A/C works better than it did, and I learned a little in the process. I'm going to try to continue tracking down the acceleration issue. If I do ever find it, I'll post up.

[kurtibm]

well looking at SI there are two bulletins that i would go with. both say to replace the low pressure switch. new GM part number 89040362.

here are the two bulletins #03-01-39-007 and this one is a PI #PI01046D

Hi,
I am having this same issue, but cannot seem to locate the details of "PI 01046D" - can anyone hlp in that regard?

Thanks,
kurt