How much freon does a 1991 Chevy truck hold?
NOTE!
| Year | Model | Refrigerant |
|---|---|---|
| Ounces | ||
| All Engines w/ Front AC Only … | 48.00 | |
| 1991 | Exc. 7.4 Eng. w/ Front & Rear AC … | 72.00 |
| Exc. 7.4 Eng. w/ Front AC … | 48.00 |
How much R134 does suburban take?
40 ounces of r134a will fill both the front and rear systems of a Suburban.
Can I mix R134a with R12?
R134a systems operate at higher discharge-side pressures than R12, which can cause compressor seals to leak. Bottom line, R134a simply doesn’t cool as well as R12. The advantage of ester oil is that it works with both R12 as well as R134a, so you can fill the system with it and then use either refrigerant.
Can I replace R12 with R134a?
R134a is a safer replacement for R12. Another major difference is the type of oil both refrigerators require. R12 is compatible with mineral oil, and most R12 systems use this. R134a uses Polyalkylene Glycol (PAG) oil.
How do I convert R12 freezer to R134a?
R12 to R134a Conversion steps
- The first step is first to make sure that the AC system is empty.
- Make sure your AC compressor is in good shape, otherwise replace it.
- Flush your current system entirely of R12 without leaving any traces of the R12 in it.
- Then, flush the condenser for traces of R12 with the flush kit.
Will AutoZone put freon in my car?
Or, if you’d like to tackle the job yourself, AutoZone has all the tools and refrigerant to service your R-134A or R-12 vehicle.
Can I put too much freon in my car?
The air compressor for the A/C unit may not operate correctly when the system is overfilled with refrigerant. This can actually cause the car itself to run roughly or even die in some cases.
What happens if you overfill your freon?
Overcharging the unit can cause permanent failure of the compressor, which is the pump for the refrigerant. When this happens, though, the system will power down and must be reset and the overcharged refrigerant removed before it will power back on.