1999yukondenali
TYF Newbie
Ok I have a 1999 GMC Yukon Denali, 4WD, 350 (5.7), with rear and front AC. The problem I'm having is with the front AC. The front AC isn't blowing out cold air at all, I'd say its working like 60% of what it is capable. But on the other hand, the rear AC is working as it should and blowing out cold air. When I turn on both front and rear AC, the front AC seems to blow out colder air, but as soon as I turn off the rear, the front AC turns back to its 60% stage.
Anyway I recently closely followed the instructions on refilling my AC, but this didn't seem to fix the front AC. Am I missing any steps to fixing my front AC? Do I need to charge or is there a way to charge the high port?
Ive already had my mechanic, look for any leaks for cracked lines, and it showed up negative. So now I'm stumped.
Anyway I recently closely followed the instructions on refilling my AC, but this didn't seem to fix the front AC. Am I missing any steps to fixing my front AC? Do I need to charge or is there a way to charge the high port?
Ive already had my mechanic, look for any leaks for cracked lines, and it showed up negative. So now I'm stumped.
