Question about Chevrolet Blazer
The port will either be in the low press line ( large line ) or on the bottle shaped accumulator by the firewall.
Posted on Jul 31, 2008
If you are recharging the air conditioner - start at the A/C pump, and follow the lines up until you find a black round stub (this unscrews) and this is where you will re-fill (recharge) the A/C.
NOTE: It is recommended to have a professional (certified) mechanic recharge A/C systems, but is not necessary. (laws and regulations vary per state, city, county).
Please let me know if you need further assistance.
Guru, Premium Expert @ Fixya.com
Posted on Jun 14, 2010
The easiest way to locate the low side charge port on any vehicle is to locate the A/C compressor, follow the "larger" of the two lines all the way back to the firewall. Some where along that line you will find the low side charge port.
Posted on Aug 06, 2010
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