pkn
Well-Known Member
- Joined
- May 16, 2011
- Messages
- 147
- Reaction score
- 4
- City, State
- Houston, TX
- Year, Model & Trim Level
- '92 '05 '10 2WDstockXLTs
Googling high and low brings, essentially, two reasons:
1. Compressor (FX15 model) shaving its internal teflon rings (which are black in color) into powder.
-- Engineer in me quietly, but confidently whispers that this is B.S..
2. Moisture gets into the system thru crack/hole/etc and refrigerant/oil decay*, forming acid. Acid eats aluminum, solder flux, etc, producing the "black death goo".
-- This sounded a bit more convincing - the more so that I know for sure that it is, indeed, acidic... until I realized that, in pressurized system, something could readily go out thru a hole, but never inside.
So I'm looking for other possible reasons ...and opinions.
________________________
* -- Great. Just great. 21-st century, and they still couldn't come up with refrigerant/oil which wouldn't react with water, producing - of all things! - acid.
1. Compressor (FX15 model) shaving its internal teflon rings (which are black in color) into powder.
-- Engineer in me quietly, but confidently whispers that this is B.S..
2. Moisture gets into the system thru crack/hole/etc and refrigerant/oil decay*, forming acid. Acid eats aluminum, solder flux, etc, producing the "black death goo".
-- This sounded a bit more convincing - the more so that I know for sure that it is, indeed, acidic... until I realized that, in pressurized system, something could readily go out thru a hole, but never inside.
So I'm looking for other possible reasons ...and opinions.
________________________
* -- Great. Just great. 21-st century, and they still couldn't come up with refrigerant/oil which wouldn't react with water, producing - of all things! - acid.