[Bricklin] Air door problem

[Scott Isensee]

I am stumped by an air door problem. The drivers side works fine, but on the
passenger side, the up air solenoid won't trigger most of the time. If I bleed
to the air pressure down to 40 pounds so the passenger side solenoid works
every time, but when I run the pressure up to about 100 it fails to trigger
most of the time. It doesn't matter whether I use the inside or outside door
switch. I am getting 12 volts to the solenoids both at the passenger and
drivers sides. I have air latches on the doors so there is no current draw in
the circuit for them. I tried running a wire direct from the solenoid to the
positive terminal of the battery to rule out any resistance from the switches
or wiring, still no luck.

I took the solenoid (Kip valve) apart and it looks fine. I even bought a new
solenoid and replaced the old one. The air lines are clear as far as I can
tell.

Occasionally the solenoid will trigger and then the passenger door opens fine.
It is a little more likely to work when the car is running (and thus the
voltage is higher) than when the car is off, but in either case it fails to
work most of the time.

After asking about this on the newsgroup earlier, someone suggested reversing
the two airlines which I did and it worked for a little while after that, but
I think it was just a fluke since the problem is somewhat intermittent. The
problem continues.

Any other ideas?

Scott