Question about 1998 Pontiac Grand Prix

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Hi i have recently bought a sealant kit for my 1998 Grand Prix A/C System and am having trouble understanding the first couple of steps... here is a link to the instructions they gave me , could someone simplify?

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The first step is to replace the receiver dryer/ accumulator to ensure that no moisture from the old unit enters the system after the sealant is introduced into the system.
The next few steps pertains to extracting the old refrigerant in the system, called recovery, and placing it in a sealed container. The refrigerant is not supposed to be released into the atmosphere. The second step pertains to extracting all moisture in the system with a special vacuum pump. Moisture in the AC system impedes the flow of the refrigerant.
These steps are typically performed in an auto shop, and it's pretty much standard procedure.
Backyard mechanics do not necessarily have this type of equipment, but they make do and hope for the best.
Hope this helps.. I would appreciate a rating, Thanks. (Good Luck)

Posted on Aug 02, 2009


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