Bus won't drop air

[Bob & Carol Howald`]

Bob, My 84 used to do the same thing, not all the time just now and
then. I would have to start the engine put the switch's in the air-up
position wait a couple on minutes and then everything would work normal
when I shut it off. Don't know why. it just happened that way. Bob
93pt 40 warm Illinois.







wrote:
>
> Hi group,
>
> Just a quick question...got back from the shop having had new leverers
> installed in front and rear.
> After getting into my spot tried to drop tag and main suspension dump
> valves and air wouldn't drop.
>
> Where do I look for this problem?
>
> Bob Lawrence
> 84 PT36
> Tacoma, Wa. (with 21 days left up here before we fulltime south)
>