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Old 07-09-2019, 11:39 PM   #17
OldCreek
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Join Date: Jan 2007
Location: Central Coast California
Posts: 1,026
Re: Weird AC issue.

Well I took off my lower actuator and fixed the same problem as the OP.

Once you pull off the actuator you can turn the blend door open/closed by hand to confirm the air flow changes. Once I turned it by hand I was able to get cold air to the driver side.

My actuator was stuck...water got into the case and rusted the motor.

Now I have to find out where the water came from..... outside leak or condensation from the a/c system. It wasn't antifreeze from the heater core.

Thanks for posting your answers/experience!
__________________
1972 K20 Suburban 5.7/700r4/NP205 Dana 44/H052 Sold
1972 C10 5.3L/4L60E 12bolt 5Lug - Sold
1971 K5 Blazer 6.0L LQ9 4L60E NP205 Dana 44/H052!!!
1970 K3500 1ton CrewCab 8.1L/Allison1000/NP205 Dana 60/14B!!!! - Sold
1984 K10 SWB 7.4L/4L80e/NP208 Corp 10/12 bolt Sold
1988 V30 CCLB 7.4L/TH400/NP205/Dana 60/Dana 70/3.73!!! (Sold)
2003 K2500HD 8.1/Allison1000/NP263
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