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Anonymous Posted on Jun 12, 2012
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Where is the low side AC service port on a 1998 Chevy Express?

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countrysi248

Jerry Koski

  • 443 Answers
  • Posted on Apr 25, 2009

SOURCE: ac low side service port location

Your service port will always be in the larger line of the two .. which is low pressure side. It might be in the dryer also which is low side.. your dryer is about 3 inches across and 8 inches long and also has your pressure switch for the AC compressor in it.. holler if you dont find it now... thanks Jerry

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lacroixx1

lacroixx1

  • 101 Answers
  • Posted on Jun 11, 2010

SOURCE: where is the ac low side service port on a 2004

NEAR firewall engine compartment TWO aluminum tubes attatched to canister
follow to connector port ONLY one will connect to the AC kit hose
so you try it if it attatches its correct
you do have to unscrew plactic cap on the low side port connector

ENGINE HAS TO BE RUNNING COMPRESSOR NEEDS TO BE ON

Anonymous

  • 2559 Answers
  • Posted on Jun 29, 2011

SOURCE: where's the AC low side

It is on the accumulator near the firewall

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