Question about 2009 GMC Envoy
Posted by Anonymous on
Check the pressures to see if there is a blockage in the orifice tube. If freon was only added to an empty system there is most likely air in the system. The blend door may not be changing completely from heat to cool also needs to be checked.
Posted on Jul 23, 2016
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Posted on Jan 02, 2017
Can't go by the pressure. Ck the large lone coming out of firewall, should be col. Small line at ac condensor in front of radiator should be hot.
Static pressure on high side probably 80psI Running 30 on the low side and 1130. will vary depending on oiutside temp Hope this hekoped
Posted on May 27, 2009
Need to check to see if the blower motor is running.If it is,but not threw the vents,most likely a vent door actuator motor.The actuator motor in this case would be bad,it is hard to get to,unless you are mechanically inclined,You can do it your self.If the blower motor is bad,just replace it.Check fuses first,and the blower relay.If I can help,let me know.
Posted on Aug 29, 2009
the heat accuator could be bad. It is a motorized part that adjusts your temprature by allowing cold or warm air flow when you adjust the temprature at the knob you are turning
Posted on Jan 21, 2011
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