Question about 2007 Chevrolet Tahoe
Posted by Anonymous on
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Posted on Jan 02, 2017
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
Posted on Apr 25, 2009
SOURCE: low side service port on
the low side port is up against the firewall, just behind the drive belt. the port is on the metal line between the evaporator and the dryer. a little rough to get to, but
can be accessed by the average DIY. not much room for the gauge and 134a can.
Posted on May 29, 2009
IF YOU HAVE 100 PSI ON LOW SIDE.YOU HAVE A EXCESSIVE AIR AND MOISTURE IN THE SYSTEM.YOU HAVE TO HAVE SYSTEM DISCHARGED AT AC SHOP OR DEALERSHIP.YOU HAVE TO REPLACE ACCUMULATOR OR RECEIVER DRIER.HAVE SYSTEM EVACUATE.THEN RECHARGED.SEE YOUR AC IS NOT TO COME ON LONG AS YOUR LOW SIDE TO HIGH.YOUR LOW PRESSURE SWITCH. IS NOT GOING TO CLOSE CIRCUIT TO TURN ON COMPRESSOR.UNTIL PRESSURE DROP AT A CERTAIN LOW PRESSURE.
Posted on Aug 25, 2009
If your vehicle is equipped with automatic climate control, this should help.
The HVAC control module controls the air intake through the recirculation actuator. The recirculation switch closes the recirculation door in order to circulate the air within the vehicle. The outside air switch opens the recirculation door in order to route outside air into the vehicle. Regardless of the blower motor switch position, recirculation is available only in the panel and bi-level mode switch positions. Including the OFF position. The mode switch must be placed in either the panel or bi-level position before the blower motor switch is placed in the OFF position. In order to reduce windshield fogging, outside air is circulated when the mode switch is in the defrost or defog positions. If the recirculation switch is pressed into the ON position when the mode switch is in an unavailable mode position, then the recirculation switch LED will flash 3 times. If the HVAC control module detects a fault with the recirc door the HVAC control module will try to drive the actuator for a predetermined amount of time, to outside air, which is the defaulted position for the recirculation actuator
Posted on Oct 17, 2009
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