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73-87 Chevy _ GMC Trucks => Interior & Equipment => Heating, Ventilation & Air Conditioning (HVAC) => Topic started by: genejohnson@earthlink.net on October 03, 2018, 07:54:49 pm
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87 Scottsdale C20 350 AT (th400) Replaced engine w/crate motor, previously
HVAC converted (6/2017) to R134A worked great before R&R.
After install of crate 350 the Heater, def, fan, AC, AC clutch don't do anything.
(Won't discuss FBN mechanics; they're gone, no call backs)
I'm attaching photos to help. 25 amp fuse under dash tests fine. I'd found several unconnected vacuum and wires, I lines connected as seemed logical-now shown in photos. Something(s) are wrong!
Any guidance to sorting this problem out is greatly appreciated.