GMC Rally Wagon 2500 Questions

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the vents in the front will blow warm air for a couple seconds then it get cool.while the rear vents blow heat all the time
key was broke off n ignition and I removed it with tweezers and set off anti theft alarm (that I didn't know it had). I need to know how to reset it so it can b driven again as it is a wheelchair van.
I just changed our heater fan and i get air but no heat just air
I actually have a 1984 GMC Rally STX, but I figure the vehicle and years are close enough. Where can I purchase a used/new pump seal for my Turbo 700R4 transmission?
Ok now I went last night and diassembled the dash again and I have not come across any pinched abused or missed harnesses. could it be the order of the wires I'm puting back on the switch? Theres a spliced two headed ...
Salutations finally!! I missed you guy and gals (hopeful there's gals). Well now, I finally got the steering wheel column in place and Ive been driving it swell. But now the aircraft light & switch, reading dome light...
Trying to figure ways to test the fuel pump gauge. It falls in front off the full icon and doesnt move at all Doesnt twitch apon start up,,,nothing. Is there a relay? Not fuse I that I know of.. Fuel pump assembly may...
I put the steering box back in the van, but now it turns sharper to the right than the left. Dose it take shims in between the frame and the steering box? I don't remember taking any off.