Question about 2004 Chevrolet TrailBlazer

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Where do i find the ac charge port on my 2003 trailblazer

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Follow the thicker metal line from the compressor to the first quick connect port to charge the low side with r134a. It should be 35 psi to 45psi when the compressor is turning and the a/c is set to high on a hot day.

Posted on Aug 03, 2010

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You can get help at a auto parts store, auto zone , advanced auto etc etc. they have a lot of free services. they also have do it yourself repair manuels , haynes ,chilton . if your going to keep the vehicle make the small invest ment . you can also check half priced book stores. yes i know this is not a direct answer to your question you need to know witch is the hi line and which is the low line. some times they have a cap over the conection that has h or l for example thats if some one didnt put the wrong cap on the wrong connection.

Posted on Aug 03, 2010

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Posted on Jan 02, 2017

SOURCE: 2003 trailblazer loss of cruise control and ac fan

for parking brake and abs check for parking brake switch operation, for abs check with scan tool for any trouble code, for your cruise control unit check for any broken vacumm hoses on the engine, for the ac fan, check the fan motor, relay or fuse.

Posted on Jul 16, 2009

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