Air Bags - Finally graduated from crash course - I hope

marcus mcgee

New member
Sep 29, 1997
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This list is a savior for me. I get to tell some one of my
accomplishments on my beast (affectionately called "The Twinkie"). My
wife listens, but in know way understands or comprehends my triumphs
over the peverse gods of GMC. And they say men don't know how to really
communicate.

Ok, here goes. For the last 3 weekends the project has been to leak
proof air system and repair auto level. Got all leaks taken care of and
thought that was the end of it. It would go up and down very slowly
manually and hold where I put it, but the auto level system would not
work. Tore down all solenoids and cleaned entire system of rust, debris
and corrosion. Solenoids worked perfect after cleaning and I learned
alot. Put everything back together, up, down ok but slow.

Checked switches and power. AOK. Then started at each solenoid to make
sure each had power. Both sides operated exactly the same. There in
lies the rub. After tracing each wire in the harness two wires were bad
and they operated the same solenoid on each side so not having a wiring
diagram I was fooled because both sides worked alike. Ripped out side
panel on drivers side to check connector, all good to there. Had to
remove top of drivers side wheel well cover to get to cable at that
point. Turns out someone had previously cut the cable and patched in a
replacement using crimp on butt connectors and then taped up the
splice. Two wires were broken at the crimp on connectors. Both
operated the last solenoid in the series of 3.

Tore apart all old crimp splices, soldered and heat shrunk all
connections and retaped. It went up like toast out of a toaster, and
down like my bank account when I work on this thing. Success.

Now attacked the height control valve assembly. Full of rust, corrosion
and crap. The rod that moves the acuator lever was frozen on each. WD
40 and some gentle persuasion fixed this and they are now back on the
coach. I raised it all the way and put in auto. Low and behold it went
down to level. I lowered to the ground and put it in auto - IT WENT UP.

Now all I have to do is put the entire inside back together. Some fun!!!

Well, I'll get up off the couch now and pay all you pyschiatrists for
listening to my problems.

Marcus