changed out A/C compressor and dryer

1997 CHEVROLET ASTRO
15,000 MILES • 4.2L • 6 CYL • 2WD • AUTOMATIC
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JLMILES
  • MEMBER
  • 1 POST
how much pag oil and Freon? It has front and rear A/C. Should I put a little pag oil in the dryer too?
Jun 7, 2019 at 2:56 PM
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JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Welcome to 2CarPros.

Here is the information you needed:

Polyalkaline Glycol (PAG) Refrigerant Oil

Front A/C System .................... 227 ml (8 fl oz)
Front & Rear A/C System .................... 298 ml (11 fl oz)
Compressor (drain and measure)
- If less than 30 ml (1 fl oz) drained: add .................... 60 ml (2 fl oz)
- If more than 30 ml (1 fl oz) drained: add .................... 30 ml (1 fl oz)
Accumulator .................... 105 ml (3.5 fl oz)
Evaporator .................... 90 ml (3 fl oz)
Condenser .................... 30 ml (1 fl oz)

Let me know if this helps.

Take care,
Joe
Jun 7, 2019 at 11:13 PM
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