Getting AC system ready for summer

Joined
Dec 31, 2017
Messages
17,973
Location
SE British Columbia, Canada
I picked up some Nylog Blue and vacuum pump oil in case I find any more leaks in my 2008 Burb. So far it held most of its charge over the winter. I loaded in 6 oz and it’s pretty good. I’m using Red Tek hydrocarbon refrigerant which is legal in Canada and Europe. Anyone else having fun with their old AC system?

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How often do you really need A/C in BC? Don't they still have snow in July up in the hills?
What’s your threshold? This is inland along the Rocky Mountain Trench. Yep, the tops of the mountains have snow in July but it has hit 100 F on occasion in the valley. Here are some temps from last summer.

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I’m generally a fan of blends, but if it list 6Oz so quickly, you need to pull it all and do it again after finding your leaks.

Blends will have operational pressures change as they leak as the more volatile components will escape first.

Good luck!
 
I’m generally a fan of blends, but if it list 6Oz so quickly, you need to pull it all and do it again after finding your leaks.

Blends will have operational pressures change as they leak as the more volatile components will escape first.

Good luck!
True. The nice thing about hydrocarbon refrigerant is that you don’t have to pull it out. You let it rip to the atmosphere ( but not in your garage). It’s not regulated in that sense in Canada and Europe. Sort of like that puff of propane that gets released to the atmosphere when filling a tank. That makes it easier for a shade tree mechanic to work on the system then pull a vacuum and refill it. Cost wise I can get it for about a dollar an ounce. Still, that’s $48 to fill my Burb with front and rear A/C. I have one connection that shows dye, but am looking into it more.
 
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I just recharged a '00 Cavalier for my neighbor and fixed a leak.

A couple years ago he said "he charged it" and it still didn't work, so the compressor was condemned. But when I got my hands on it there was ZERO charge, and charging it worked.

Fast forward several weeks and it's not cooling any longer. The compressor kicks on and runs full time but the high side doesn't climb at all (nor does the low side fall). So, I guess it does need a compressor......
 
I just recharged a '00 Cavalier for my neighbor and fixed a leak.

A couple years ago he said "he charged it" and it still didn't work, so the compressor was condemned. But when I got my hands on it there was ZERO charge, and charging it worked.

Fast forward several weeks and it's not cooling any longer. The compressor kicks on and runs full time but the high side doesn't climb at all (nor does the low side fall). So, I guess it does need a compressor......
Some compressors are a variale design. You can just replace the valve instead of the whole compressor. I don't know if that includes yours.
 
My ‘07 Sonata has a leak somewhere, I think the compressor. Needs recharged every spring and I just topped it off the other day with a 12oz can.

I’ll have it fixed correctly sometime. Though I’ll have to look closer, maybe I’ll do it myself.
 
Bring it here!
I bought the car for my little sister to drive as a first car. She’s been driving it for a year now and I’ll be honest, I didn’t fix it right initially because I wasn’t sure whether the car would be in 1 piece or not at this point. Somehow she hasn’t totaled it so maybe it’ll get a treat
 
I bought the car for my little sister to drive as a first car. She’s been driving it for a year now and I’ll be honest, I didn’t fix it right initially because I wasn’t sure whether the car would be in 1 piece or not at this point. Somehow she hasn’t totaled it so maybe it’ll get a treat
I make tons of high side ac hoses for those cars. Seems to be a common failure point.
 
My ‘07 Sonata has a leak somewhere, I think the compressor. Needs recharged every spring and I just topped it off the other day with a 12oz can.

I’ll have it fixed correctly sometime. Though I’ll have to look closer, maybe I’ll do it myself.

Nick, before searching for the freon refrigerant leak, do yourself a favor and buy this detector from Amazon. The $22 will be money well spent as it has never let me down in locating very small leaks where UV fluorescent dye does not show up.

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True. The nice thing about hydrocarbon refrigerant is that you don’t have to pull it out. You let it rip to the atmosphere ( but not in your garage). It’s not regulated in that sense in Canada and Europe. Sort of like that puff of propane that gets released to the atmosphere when filling a tank. That makes it easier for a shade tree mechanic to work on the system then pull a vacuum and refill it. Cost wise I can get it for about a dollar an ounce. Still, that’s $48 to fill my Burb with front and rear A/C. I have one connection that shows dye, but am looking into it more.
That’s why I use it for diagnosis in older cars before wasting valuable r-12. If it leaks a while I’m not concerned.
 
The good refrigerant detectors are more like $150 to $200.
That is what I thought since the ones we used professionally in industrial manufacturing (Bacharach H-10) costs >$1000. However, the $22 Elitech unit I purchased has found every small and large leak in the 5 vehicles I have serviced (for both R-12 and R134a refrigerant leaks) since 2019. It also located a microscopic R-22 evaporator leak in a York home HVAC unit.
 
My A/C tool is an thermometer that looks more like a meat thermometer. I can put it into the vent and it measures the temp a few inches into the vent. It works pretty well to tell me if my A/C is working properly.
 
My A/C tool is an thermometer that looks more like a meat thermometer. I can put it into the vent and it measures the temp a few inches into the vent. It works pretty well to tell me if my A/C is working properly.

Like this?

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The photo is from a Honda Odyssey after I located and repaired a pinhole corrosion leak in an aluminum high pressure refrigerant line which I found with the sniffer last weekend.
 
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