it is located slightly towards the driver side on the firewall inside the engine compartment. it has a black cap covering it. ti is clearly in view and easy to access.
The low pressure valve to put in 134a on a 1994 Oldsmobile Cutlass Ciera V6 is on the passenger side of the engine compartment. It is about 12 inches below the alternator.
134a
You are looking for the low pressure side valve. Follow the pipes from the compressor and with R-134a systems the hi and low pressure valves are idiot proof so you can not connect your recharge hose to the wrong valve
R-134A
Yes, you use R-134A. The low pressure intake valve is right in front of the engine, in the middle of the car (side-to-side) and about12" down on a silver metal pipe. Remove the cap, take your adapter (at the end of the hose) and pop it onto the intake valve. It will not fit onto the high pressure inlet valve (PLEASE DO NOT EVEN TRY!!!!) which is located on the driver's side down near the frame. Follow the directions on your kit for re-charging your system. PLEASE let the manifold cool down before reaching into this space to access this valve!
The 1993 Aerostar does not use R-134a. It uses R-12.
35suction pressure in 1000 rfm
A 1969 Oldsmobile Cutlass S with a 350 Rocket engine typically holds about 2 to 3 pounds of R-134A refrigerant for its air conditioning system, depending on the specific setup and whether it has been retrofitted for R-134A. It's important to consult the vehicle's service manual or a professional for precise specifications and proper charging procedures.
Density of R-134a changes with respect to temperature and pressure.
Only if you replace the Dryer, install adapters on the lines, and use compatible oil.
the straight easy answer is no. Although,I guess id one really wanted to,you could change the compressor oil,Expansion valve,& basically re-engineer the system you could. But as far as removing the R-22,& recharcing with R134A,definately no.the temperature to pressure relationship is way different in the 2 refrigerants(with 134A running at a lower temp & pressure vs. r-22)
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