V8BoatBuilder
Transplanted Bostonian
- Joined
- November 4, 2002
- Messages
- 3,411
- Reaction score
- 8
- City, State
- East Brunswick, NJ
- Year, Model & Trim Level
- 97 Mountaineer V8 4x4
Bough my 2000 Ranger with a 2.5 4cyl over the winter, and the A/C was non-functional. The compressor spun fine by hand. Fast forward to now, it's 75 degrees ambient and I've hooked up my manifold gauges.
Initial Pressures:
Static: 75psi
Low: 20psi
High: 100psi
Vent Temp: 75 deg
Ok, so I'm thinking she HAS refrigerant in there due to the static pressure, but most of it has escaped. Where, I do not know.
So I connect a can of R134 and begin to charge. Intake is super slow, until I put the can into a bucket of hot tap water. :smoke:
After 12oz added:
Low: 30psi
High: 175psi
Vent Temp: 50 deg.
Added a bit more...
After 15 oz added:
Low: 30psi
High 185psi
Vent Temp: 48 deg
That's where I left it. But can I improve cooling on this system?? The sticker under the hood says the truck will take 1lb, 14oz of R134, meaning I added half of rated capacity.
1) What's the likelyhood there is a bunch of air in the system?
2) What do people get for cooling? At idle, I'm now getting a 27 degree drop in temps. Is this all I can get?
When disconnecting the high-side hose, I heard a little fizzing from the valve. That might be where the leak is.
3) Can I replace the valve core with the system charged?
Initial Pressures:
Static: 75psi
Low: 20psi
High: 100psi
Vent Temp: 75 deg
Ok, so I'm thinking she HAS refrigerant in there due to the static pressure, but most of it has escaped. Where, I do not know.
So I connect a can of R134 and begin to charge. Intake is super slow, until I put the can into a bucket of hot tap water. :smoke:
After 12oz added:
Low: 30psi
High: 175psi
Vent Temp: 50 deg.
Added a bit more...
After 15 oz added:
Low: 30psi
High 185psi
Vent Temp: 48 deg
That's where I left it. But can I improve cooling on this system?? The sticker under the hood says the truck will take 1lb, 14oz of R134, meaning I added half of rated capacity.
1) What's the likelyhood there is a bunch of air in the system?
2) What do people get for cooling? At idle, I'm now getting a 27 degree drop in temps. Is this all I can get?
When disconnecting the high-side hose, I heard a little fizzing from the valve. That might be where the leak is.
3) Can I replace the valve core with the system charged?