2003 GMC Savana Air condition problems

2003 GMC SAVANA
150,000 MILES
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NMUSICK
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So, my front Air conditioning system m works great but my rear just blows hot air. We bought a new compressor and the lines are cold all the way back but it still blows out hot air. We think it may be the rear blend door actuator but we cant find it. Where is the rear blend door actuator located? Could it possibly be the problem we are having?
Aug 27, 2013 at 5:12 PM
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HMAC300
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yes it could be the problem the pic oi'm sending is the air temp actuator but before you tear into it try removing the fuse for the rear hvac unit with key on for 60 seconds then reinstall sometimes they will reset
Aug 28, 2013 at 7:18 AM