ok, I'm heading back from a 50 mile trek, so nearly 100 miles round trip with the A/C on, driving along on the highway about 80mph, and my RPM shoots up, and I coast down to 60/50/40... about 4K at 40mph... get to a stop, and shift into p then back to drive, and it shifts normally up to 60 or so, then lets go again, and I'm back to 40... I trundle the 1.5 miles to my exit, pull into a gas station, and check fluid, it's a little low, I check the coolant, also a little low... nothing to indicate the problem...
I'd think clutches, but it shifts normally, but will not go into 4th. I get 1, 2, 3, and it holds... when cold I get 4, up until it warms up, then it pops int neutral, and holds 3 when I slow to 55...

what's up?

I just put in an order to Phil for a cooling hoses to tail shaft seal rebuild kit, with all superseded updates to the transmission, (it's leaked a little fluid constantly since I got the car) but I fear this will not solve the issue. the fact that it holds 3, makes me think VB issues, not clutch problems...

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 560SL convertible
1987 190D 2.5-5SPEED!!!

1987 300TD
2005 Dodge Sprinter 2500 158"WB
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!