Search found 179 matches

by JohnHere
Sun Mar 29, 2020 11:13 am
Forum: Automotive Air Conditioning Forum
Topic: R12 system on 79 Trans Am
Replies: 21
Views: 1380

Re: R12 system on 79 Trans Am

Ensure that you clean out any remaining metal particles. Metallic debris in the system that makes it back to the compressor will quickly ruin it.
by JohnHere
Sat Mar 28, 2020 8:56 am
Forum: Automotive Air Conditioning Forum
Topic: R12 system on 79 Trans Am
Replies: 21
Views: 1380

Re: R12 system on 79 Trans Am

I wonder where the metal particles came from, though. Usually, that means something inside the compressor is disintegrating, as mentioned earlier.
by JohnHere
Mon Mar 23, 2020 11:04 am
Forum: Automotive Air Conditioning Forum
Topic: R12 system on 79 Trans Am
Replies: 21
Views: 1380

Re: R12 system on 79 Trans Am

Offhand, I don't know what the specs are for your car. But if the rebuilt compressor was empty of oil when you received it, did you add the correct amount and type of oil?
by JohnHere
Mon Mar 16, 2020 10:26 am
Forum: Automotive Air Conditioning Forum
Topic: 2013 Escalade ESV Platinum - Replacing Evap Temp Sensor
Replies: 6
Views: 1797

Re: 2013 Escalade ESV Platinum - Replacing Evap Temp Sensor

So, yes, I think yours holds 40 ounces (or whatever the under-hood sticker says).
by JohnHere
Mon Mar 16, 2020 10:12 am
Forum: Automotive Air Conditioning Forum
Topic: 2013 Escalade ESV Platinum - Replacing Evap Temp Sensor
Replies: 6
Views: 1797

Re: 2013 Escalade ESV Platinum - Replacing Evap Temp Sensor

If your vehicle is the EXT model and has the 6.2L V8 with rear A/C, my source references say that the system capacity is 48 ounces (3 pounds) of R-134a and 11.0 ounces of PAG-46 oil. But as mentioned previously, the under-hood sticker takes precedence over any reference charts. The non-EXT model wit...
by JohnHere
Sat Mar 07, 2020 10:33 pm
Forum: Automotive Air Conditioning Forum
Topic: 2013 Escalade ESV Platinum - Replacing Evap Temp Sensor
Replies: 6
Views: 1797

Re: 2013 Escalade ESV Platinum - Replacing Evap Temp Sensor

It might be just a low charge. A small amount of refrigerant typically leaks from the compressor shaft seal over time. Since your wife's vehicle is now six to seven years old, enough refrigerant might have leaked out by now to begin affecting performance. Before taking the dash apart (a difficult, t...
by JohnHere
Sat Mar 07, 2020 9:59 pm
Forum: Automotive Air Conditioning Forum
Topic: 2006 Saturn Vue valve cores
Replies: 1
Views: 1166

Re: 2006 Saturn Vue valve cores

If your original hard-to-find Shrader valves are still in good condition, I would coat them with a little Nylog Blue, reinstall them, and just replace the dust caps, which do the actual sealing.
by JohnHere
Sat Mar 07, 2020 9:14 pm
Forum: Automotive Air Conditioning Forum
Topic: 1966 Oldsmobile A/C
Replies: 6
Views: 1691

Re: 1966 Oldsmobile A/C

I advise staying far away from the highly flammable refrigerants you mention: R-152a, propane, and isobutane. They're very dangerous to work with, present a fire hazard should the system leak, and they're just not worth the risk, in my opinion. As already suggested, R-12 would be best because your s...
by JohnHere
Sun Dec 01, 2019 10:34 am
Forum: Automotive Air Conditioning Forum
Topic: Ac not as cold when car warms up
Replies: 19
Views: 8309

Re: Ac not as cold when car warms up

With the HP in the 260's at around 31C (88F) ambient, I don't think it's the compressor. Chances are that the high side would be much lower if the compressor was getting weak.
by JohnHere
Sat Nov 30, 2019 7:30 pm
Forum: Automotive Air Conditioning Forum
Topic: Ac not as cold when car warms up
Replies: 19
Views: 8309

Re: Ac not as cold when car warms up

For a 27C (81F) ambient, the pressures look pretty good to me. Bear in mind that the pressures will vary depending on engine and vehicle speed and hence airflow through the condenser, compressor efficiency, ambient temperature, and so on. Your 1997 Sentra has a thermistor to prevent the evaporator f...

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