Search found 1671 matches

by JohnHere
Tue Jul 15, 2025 6:18 pm
Forum: Automotive Air Conditioning Forum
Topic: Re: 1999 Toyota Camry
Replies: 1
Views: 114

Re: 1999 Toyota Camry

Wow! How did you charge it that you managed to blow the HPRV? Typically, the trinary switch in your Camry will shut-down the compressor before it reaches that critical high-pressure point.

The HPRV is a one-time valve, so you'll need to replace it.

The only place I'm aware of to purchase a new ...
by JohnHere
Tue Jul 15, 2025 12:26 pm
Forum: Automotive Air Conditioning Forum
Topic: 2004 F-150 Heritage AC
Replies: 43
Views: 58938

Re: 2004 F-150 Heritage AC

I agree with Tim. Adding dye to the TXV side or the suction side of the evaporator, I don't believe it makes any difference.
by JohnHere
Tue Jul 15, 2025 7:40 am
Forum: Automotive Air Conditioning Forum
Topic: 2004 F-150 Heritage AC
Replies: 43
Views: 58938

Re: 2004 F-150 Heritage AC

In addition to what Cusser said, I would add no more than three-quarters of an ounce of UV dye to the evaporator. Again, a little goes a long way. Special tools are also available to inject the dye into the low-side service port after the system is charged.

Add about one ounce of PAG oil, then add ...
by JohnHere
Mon Jul 14, 2025 11:58 am
Forum: Automotive Air Conditioning Forum
Topic: 97 Chevy c1500 a/c help needed…
Replies: 1
Views: 91

Re: 97 Chevy c1500 a/c help needed…

If you haven't already done so, pull out the Orifice Tube (OT) and examine it. It might be partially blocked with gunk and metal particles. If it is, I'm afraid the system will need a lot more work.

How many miles are on the clock?
by JohnHere
Mon Jul 14, 2025 10:20 am
Forum: Automotive Air Conditioning Forum
Topic: 2004 F-150 Heritage AC
Replies: 43
Views: 58938

Re: 2004 F-150 Heritage AC

That's good. No, it wouldn't circulate the solvent.
by JohnHere
Mon Jul 14, 2025 9:14 am
Forum: Automotive Air Conditioning Forum
Topic: High pressure side never drops, even when car is off
Replies: 3
Views: 189

Re: High pressure side never drops, even when car is off


I evacuated the system before I recharged it, and the part I purchased claimed to have the R/D already in it. I did measure the refrigerant by weight.
Regarding the amount of PAG oil I put in, I don't recall the exact amount, but it was in the neighborhood of 1.25-1.5 ounces. I did get it from the ...
by JohnHere
Mon Jul 14, 2025 8:12 am
Forum: Automotive Air Conditioning Forum
Topic: Keihin CN150L 1984 Honda CRX
Replies: 1
Views: 85

Re: Keihin CN150L 1984 Honda CRX

I don't have a diagram for your compressor. But ACKits.com, this Forum's sponsor, can have your existing compressor rebuilt as long as the mainshaft still rotates smoothly.
by JohnHere
Mon Jul 14, 2025 8:01 am
Forum: Automotive Air Conditioning Forum
Topic: 2004 F-150 Heritage AC
Replies: 43
Views: 58938

Re: 2004 F-150 Heritage AC


Well, it looks like I could not keep my mind on what I was doing:
I proceeded to flush the evaporator, and when I was done, I hooked the lines back up and realized afterwards that I forgot to dry it out with air and I also forgot to add one and a half ounces of pag to it.

Is it possible that if I ...
by JohnHere
Sun Jul 13, 2025 8:32 am
Forum: Automotive Air Conditioning Forum
Topic: AC Leaks - O-Rings vs Lines
Replies: 5
Views: 394

Re: AC Leaks - O-Rings vs Lines


I appreciate that feedback, especially since it looks like I still have a small leak at one of the connections to the receiver.
Even though the o-rings were replaced, it could be possible that one or more were a bit too small in diameter, and therefore, leak under pressure.

When you get back ...
by JohnHere
Sat Jul 12, 2025 2:09 pm
Forum: Automotive Air Conditioning Forum
Topic: AC Leaks - O-Rings vs Lines
Replies: 5
Views: 394

Re: AC Leaks - O-Rings vs Lines

I would not replace the lines—especially at that price—unless there's some kind of obvious mechanical damage. (There isn't, at least in your photos.)

To ensure a leak-free system, always use a dab of Nylog Blue on each connection point, threaded joint, and o-ring that were disassembled and ...