ThomasBorchers Posted June 22, 2016 Share Posted June 22, 2016 Hi all, I have a problem with my 1955 Oldsmobile Super 88 with Hydramatic transmission. I restored the car the last 16 years. The car stood still all the time, but every two years or so I let the engine run. But the car stood at the same spot. I don’t know since when the car was not on the road before the restoration. The problem is : When I start the engine, go into R with the gear selector, the idle goes a bit down ( as it should ), I can feel that a gear is in and with acceleration the car goes reverse. When I go then into Drive, it will not move forward. Also not in the other Gears like L and S. When I am in N, the idle goes a bit up again but when I accelerate the engine, it feels as when the car tries to go reverse. When I wait a while, sometimes I hear a small noise and the car has no longer the tendency to go reverse. When I then put into “Dr” it will go forward. When I jack up the rear wheels and I try all this, it is working as it should. The oil level at the transmission is at the F mark. Has someone an idea what the problem is and what I could do? Thanks for your help Thomas Link to comment Share on other sites More sharing options...
ThomasBorchers Posted June 23, 2016 Author Share Posted June 23, 2016 (edited) Today new game : I had to back up the Olds from the car bench for an other car. Wanted to drive it now forward, no chance. I jacked the car up at the rear and see how the wheels are working : N : Wheels spin backwards but not with "power", it is easy to stop them. Dr, S, L : No turning wheels but I can feel that the transmission is in gear because the idle speed is lower as in N. R : Wheels spin as they should and faster as in N. Now my car stands on the outer place and a thunderstorm will come this afternoon... of course... Thomas Edited June 23, 2016 by ThomasBorchers (see edit history) Link to comment Share on other sites More sharing options...
ThomasBorchers Posted June 23, 2016 Author Share Posted June 23, 2016 OK, car is back under the roof... I accelerated a bit more… and then in "Dr" the gear went in and I drove onto the bench again. Then I tried it there from N into fwd gears and R. Well, it takes some seconds, then the gear is in. Or no gear in it in N. Could this be a problem of sticky valves or so? 1 Link to comment Share on other sites More sharing options...
Ben Bruce aka First Born Posted June 23, 2016 Share Posted June 23, 2016 I think you have answered your own question. Hopefully the transmission will continue to improve with use. Ben Link to comment Share on other sites More sharing options...
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