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1991 Cadillac Seville Freon

Tiny
ISAAC HENDRIX
  • MEMBER
  • 1991 CADILLAC SEVILLE
Air Conditioning problem
1991 Cadillac Seville V8 Two Wheel Drive Automatic

Hello Pro's I'm hoping you can tell me which
A/C port do I add freon to? One is close to the
fire wall on passenger side and the other one is
toward the front of car on passenger side looks like
the front port is connected to the condensor. Please
assist. Thanks!
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Thursday, July 1st, 2010 AT 6:19 AM

2 Replies

Tiny
JIM SHIRRON
  • MECHANIC
  • 77 POSTS
The easist way to tell is: The freon goes in on the low side, the high side is used for press monitoring. Thelow side is on a large line, or on the accumulator. The high side is on a small line, or closer to the front of the car
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Thursday, July 1st, 2010 AT 6:44 AM
Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
1991 was factory equipped with R12, which is VERY expensive, if you can find it.

If you haven'et, convert to 134a.
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Wednesday, July 7th, 2010 AT 10:56 AM

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