Well, I took the camper on one more short excursion 60 miles away.
Overdrive worked fine. Thirty miles from home we noticed white smoke
trailing us and pulled over to discover all the transmission fluid
had leaked out. It wasn't the coming from the overdrive solenoid.
Had it towed home and got under to look. There was a lot of fluid
all over the right side of the tranny. Filled it with fluid and it
seemed OK after a couple test runs around the block. Then I took it
on the Interstate for a couple miles. When I parked it a puddle
formed underneath. It looks like the fluid is coming from somewhere
on the top portion of the transmission. I could see some kind of a
unit that looks like it's attached to the side of the transmission
right under the EFI unit and intake manifold. I think it's the trans
modulator valve. It looks extremely hard to get to so I drove it to
a transmission shop (the local Toyota dealer said he didn't have a
lift that would handle it). They are going to check it out, I'll
post when I have more word about it. Sure am glad I took this extra
little trip, I would have been stuck someplace near Harrisburg
spending vacation days at a transmission shop.
Oh, while I was under there I decided to put the inner o-ring back in
the overdrive solenoid. The overdrive still works and as a bonus,
when I hit the off button it shifts down to drive. I guess the
connector I plugged back in WAS the overdrive switch. I'm puzzled
that yours still downshifts when you turn off overdrive, Jack. Are
you sure you're not just looking at the OFF indication and assuming
the overdrive came off? There is a definite rise of RPM's
immediately as the button is pressed and it jerks you a bit forward
if you're not stepping on the gas.
