Automotive Air Conditioning Information Forum

Anyone know if it's possible to pull the orifice tube from under the front of the car on a Pontiac Grand AM GT? Neither the low or high side pressures seem to go high enough. I think it was 21.6 ounces according to the decal sticker. I managed to put two 12 ounce cans in. It never seemed to even try ...

Thanks for the link, I had already ordered one by the time I saw it.

I checked again, and it just states Pag Oil With Dye.

I'll have to look again at the sticker under the hood. I don't think it said but, I've been known to miss things while reading. Thanks!

I may wind up getting a HF Detector yet. Also, under my hood it says 1.35lbs R134a and Pag Oil with Dye. I wonder if the factory oil came with Dye. If so maybe, I could get the UV Flashlight and Glasses and spot the leak if there is one? Amazon has Elitech Leak detector for about $10.00 more than ...

That appears to be a lot of good info! Thank You

It was pure R-134a 156000 miles. Original system and compressor and never serviced except by me replacing factory high side service port that was leaking. I put a Dorman valve with the Schrader valve in it. Pulled a vacuum and charged it 2 years ago just by pressures not weight. My Grandson replaced ...

Test, having trouble replying? Readings were at idle icreasing made very little difference. The low side actually drops when increasing speed. Will see about getting recovered. Whats best for leak testing? Harbor Freight locally, has an electronic tester not sure about their quality though. I've ...

I also wanted to add there is a rattling noise with compressor running.

This is an 05 Pontiac Grand AM GT 3.4L. Vacuumed system down didn't appear to have a leak after sitting under vacuum for an hour. After charging, it was at least blowing between 40-45 degrees so I shut it down. Went to town a couple hours later. It was blowing nothing but hot air and the AC clutch ...