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How long do 1999 Pontiac Grand Prix SE's last?

Where can I find the low side service port on a 1999 Pontiac Grand Prix to recharge the a/c??

  • Where can I find the low side service port on a 1999 Pontiac Grand Prix to recharge the a/c??

  • Answer:

    Katie, On my 99 Grand Prix the low side service port is located on the firewall right smack in the middle just underneath the windshield above the engine. It has a black cap on it and is easily accesible. Hope this helps

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low side is the larger of the 2 lines

miiiikeee

Katie it is located on the left side of where your engine compartment is and it is that bulbous shaped object in the back the port is nearby on there where the xpansion valve is at it should have a cap on it that is the lowside of the a/c system the highside is up in front where the condenser is,if not sure ask any a/c technician anytime.

lwr735

On my daughter's 2001 it is located on/near the driver side fender well , The hose connector will only fit the low side service port , and just use enough to get your air compressor running constantly and dont over fill it !

Ratchet1957

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