Automotive Air Conditioning Information Forum

As mentioned in another topic, a company called Cold Hose in Ocala, Florida, could probably custom-fabricate it.

A few questions: Did you achieve a vacuum of 29.9 inHg or thereabouts depending on your elevation? The higher the elevation, the lower the achievable vacuum level.

Is your vacuum pump in good condition (fresh vacuum-pump oil of the correct type, all connections air-tight)?

Are you charging the ...

What is the year, make, and model of your vehicle? And what's wrong with the old line?

The photo of the old line connector is called a peanut fitting . The photo of the new line connector is called "who knows?"

I've never seen a flared fitting with an o-ring, such as that one, used on any vehicle ...

So if I accidentally pulled the vacuum from just the low side and only for an hour but it maintained a constant vacuum for 4 hours do you think the system was not fully vacuumed? It would make sense to me if I only got to 28 in Hg or if it started at 29 in Hg but dropped to 28 in Hg that the ...

A lot to discuss here.

Let's start with the specs for your 2002 Tundra: 22 ounces net weight of R-134a, and 7.75 fluid ounces of PAG-46 oil.


I recently replaced the ac system in my 2002 Tundra. I had a shop evacuate the R-134a and then I replaced the compressor, condenser, expansion valve, and ...

Double-check the shaft seal by placing a shower cap over the front of the compressor or taping a leak-free, well fitting plastic bag around the same location. Give it an hour or two, then slip the leak-detector probe underneath the shower cap or bag. If the detector sounds off, you'll know for sure ...

Today, we raise The Colors to honor all U. S. Service Members who made the Ultimate Sacrifice in defense of freedom. Let us also commemorate their Gold Star Families.

Okay, no front seal leakage or corrosion.

Next on my list would be the condenser. It tends to take a beating from road debris given its vulnerable location behind the grille.

The only specification that I have for the 2016 Chevy Impala is R-134a. I'm sure that Chevrolet switched over to using R-1234yf exclusively several years ago. The Impala switched to R-1234yf during the 2018 model year for the V6 engine.

The vacuum oil was not replaced but was clean in the sight lense. I have only used this vacuum pump one other time, a few years ago.
The oil might look clean in the sight glass, but it could still have moisture in it, picked up over time, reducing the efficiency of the vacuum pump.


Or even ...