Questions tagged [r134a]

R134a, a refrigerant commonly used in vehicle air conditioners.

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Mini Cooper R56

After changing the compressor, the compressor no function, I have refuel the refrigerant R134a into the system, but the compressor coil is not working which mean there is Currant to the compressor ...
1 vote
2 answers
181 views

Recharging A/C - adding oil, UV dye, & stop leak

So my car broke down due to a transmission cooler line leak. Had it towed to a shop where they diagnosed the issue, replaced the cooler lines and at their recommendation replaced the radiator. I pick ...
0 votes
0 answers
153 views

A/C not cold on highway

Ac not blowing cold when driving on highway. 2006 scion XA with a fresh r134a recharge. Ac blows cold idling and around town, but when driving on highway (>50mph) ac blows totally warm. Cools down ...
1 vote
1 answer
75 views

Advice before recharging car's AC with DIY kit and additives

Following a very costly surgery, I'd love to save several hundred bucks with a DIY kit for the car's AC system. A recent shop diagnostic discharged the line and also determined a leak near the high ...
5 votes
3 answers
13k views

How do I convert a R12 to R134A for my AC system?

I have an older vehicle that has AC, but it needs a recharge. It uses the older R12 refrigerant and it is very expensive and can be difficult to locate as it is not made in the US anymore. How do I ...
-1 votes
1 answer
5k views

R134a added to car AC "upside down"

I had "help" from the manager at the auto parts store who added a full R134a can upside down "cause it's quicker" (and poured liquid into the system instead of allowing the gas to ...
6 votes
2 answers
8k views

Can I use empty refrigerant bottles to store used refrigerant?

Based on symptoms and measurements, I have reason to suspect that my neighbour's car's AC system has too much refrigerant in it. Some of the refrigerant has to go. To my knowledge, even if ...
1 vote
1 answer
72 views

Can an A/C system cool with just 20-30% charge?

So the A/C in my LR4 was never quite right since I bought it in fall. It worked, but on hotter days it barely cooled at all, but I never got round to it because I had other priorities. As fall turned ...
1 vote
0 answers
52 views

Adding Oil to A/C Compressor After Refrigerant Leak?

I recently retrofitted the A/C system on my 1987 Toyota 4Runner for R134a. This included: resealing original Denso 10P15C compressor, flushing the evaporator, condenser, and lines, installing a new ...
3 votes
2 answers
62k views

Can you use a vacuum pump on a charged A/C System?

I have a vehicle that is not currently running from which I am pulling the engine. To do so, I need to remove the A/C compressor and condensor, but it is currently charged. I have borrowed an A/C ...
1 vote
1 answer
6k views

Are R-134a quick-couple adapters compatible with R-1234yf systems?

In other words, do R-1234yf systems use the same charging port design as R-134a?
6 votes
1 answer
437 views

What exactly is R-1234yf?

I keep on reading about a new refrigerant, R-1234yf, that is being adopted by some automotive manufacturers. What is this refrigerant all about, why are manufacturers considering it and what makes it ...
8 votes
1 answer
6k views

AC: Fixing or Recharging?

I have Toyota Camry 2000. The problem is AC does not blow any cold air. So, I bought R134a and recharging it myself. It costs me about $12. However, it lasts for about a month. I checked with couple ...
8 votes
1 answer
17k views

How do A/C professionals dispose of refrigerant?

The ubiquitous advisories and legislations against releasing A/C refrigerant into the atmosphere are well known - if you need to discharge R-134a or R-22 from your A/C system, have the gas evacuated ...
7 votes
1 answer
19k views

Does R-134A refrigerant normally have oil (liquid at room temperature) in it?

Upon [legally] releasing some pressure from a car's (model year 2000) over-charged AC refrigerant loop that uses R-134A refrigerant, some of the released fluid surprisingly stayed liquid at room ...
6 votes
1 answer
6k views

Is it bad to mix different refrigerants?

I'm mainly wondering about different brands of refrigerants. In other words, mixing one brand of R134a with another brand, not mixing R12 and R134a (or anything like that).
3 votes
1 answer
105 views

Will using the AC accelerate refrigeration loss due to a leak?

I developed a leak in the lines of my AC system (verified). The system has been recharged so it is working for the time being, but I do not expect it to last indefinitely. I am due to buy a new car, ...
7 votes
3 answers
21k views

How to recharge AC using booster from auto parts store?

The AC on my 2002 Chevy Cavalier stopped blowing cold in the fall and I had planned on getting it checked out and recharged once the AC check specials started. I saw this for $30 and it seems too ...