Ounces of R134a needed
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Joined: Oct 2003
Posts: 1,083
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From: DFW
Car: 1992 Z28
Engine: 5.7 TPI
Transmission: 700R4
Axle/Gears: G80 3.23
Ounces of R134a needed
In the car (1992) my system was bone dry and I don't have any labels on how much it takes. I've seen different responses on the amount (30, 40, 48).
I just emptied a 12oz and 19oz and its still cycling about every 5 seconds.
I just emptied a 12oz and 19oz and its still cycling about every 5 seconds.
Thread Starter
Supreme Member

Joined: Oct 2003
Posts: 1,083
Likes: 4
From: DFW
Car: 1992 Z28
Engine: 5.7 TPI
Transmission: 700R4
Axle/Gears: G80 3.23
Re: Ounces of R134a needed
The parts store had 3.5 lbs in their system, and I had a feeling that was way off.
It's filled up, and I get fantastic cold air. But it still cycles every 5-7 seconds. The highside hovers around 175psi, and low eventually dips to 30 and shuts off.
- Replaced schrader valve in low side port
- Pulled a vacuum, and no leaks
- Replaced orifice
- Filled up the system
It's filled up, and I get fantastic cold air. But it still cycles every 5-7 seconds. The highside hovers around 175psi, and low eventually dips to 30 and shuts off.
- Replaced schrader valve in low side port
- Pulled a vacuum, and no leaks
- Replaced orifice
- Filled up the system
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squirrelybird
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Jul 28, 2001 09:54 PM




