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Rear A/C require second drier?

RayDeez on Thu July 22, 2010 1:12 PM User is offline

Year: 1997
Make: Chevrolet
Model: Express 2500
Engine Size: 350
Refrigerant Type: 134a
Ambient Temp: 96
Pressure Low: below gr
Pressure High: ?
Country of Origin: United States

Excuse me if I seem ignorant in this post. It's been a lot of years since I journeyed to a wrecking yard and dug a compressor from a wrecked AMC Gremlin and swapped it out of our first car a 1973 Gremlin X. That repair worked until I sold that car in 2004.
Jump to the now and we have a 1997 disabled accessible Chev van with rear air. The compressor went bad with LOUD noises and no cooling (only about 4 seconds of cooling and then warm), pressure on low side drops in that time.
My mechanic is getting ready to replace the compressor drier and Orifice, (I think those are the part names please correct me).
The aftermarket rear air, I believe has some coils below the area that it blows the cool air, (along the drivers side below the windows). When everything is working in summer, condensation drips onto the ground below this region of the van.
Now the question, is there something that has to be replaced in the rear a/c (drier and orifice?) at the same time we replace the compressor and drier (and orifice) on the front?
Regards,
Ray S

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