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Not your typical trans problem
Last night I went through the drive through car wash and then my daughter and I went to Braum's to grab some ice-cream on the way back home. Car was runnin great, pulled up to the drive-thru speaker and turned my car off s I could order. I then turned car back on and drove to the window to pay. Got done there and pulled back out onto the street and my trans would not shift out of first gear. I pulled over in a parking lot and put the car in nuetral, then park then back into drive. I then pulled back out on to the road and it shifted great all the way back home (5 miles) . No problems with it today either. Any ideas? Trans fluid is full and the trans has been service last year.
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Yeah! We like Braum's as well. Buy their milk all the time.
Hmmm interesting problem. How are the selector bushings? I did have a GM FWD that did that. Turned out to be a problem in the valve body. A check ball some how managed to lodge itself. |
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I have not torn down a MB auto tranny, yet. If I could find a freebie, I would tear it down just to see what is inside. |
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My indie was checking it out and he said, "man the only gear that works in this thing is park" i though that was rather funny. so $2000 and the thing is being rebuilt. |
How high did you let it rev in first? If the kickdown switch is stuck it won't shift till near the max rpm. :dizzy2:
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I had the exact same problem and at first thought it was a stuck kick-down switch. It wasn't. If your transmission leaks, like many if not most of ours do, you should check the level using proper warmed up, engine running, transmission in N technique. I had to add quite a bit of fluid, solved it for me. Let us know..
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Your trans will not shift out of gears until near the rev limit if the kickdown switch is stuck, It is under the pedal, just disconnect it and see what happens.
I also has a vacuum leak that caused the same thing. Near the vacuum amplifier. |
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I'd have to agree...and having torn down an MB transmission, it's not something I'd want to do very often let alone pull apart a valve body |
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Thanks for ll of the info. I actually do not have a trans leak whatsoever but I do have a hell of an oil leak (yet to find where it is coming from). I thought it may be some type of vac problem cause I had the under body wash done. Maybe it knocked something loose temporarily. Has been fine since. I guess time will tell.
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Several items:
1) the mechanic that said the only gear that works is park,,, well park isn't a gear. 2) I had a '76 240D that leaked tranny fluid. I drove that car 2 years having to pull over and add a quart when the engine revved, but I didn't go any faster. The car always shifted even when low on tranny fluid. 3) kickdown switch most likely got stuck, or your linkage might be a little worn and "D" was "1", until you put it back in park, or a little ball bearing got stuck in the tranny and prevented the fluids from being routed to change gears, or a valve stuck open Good luck Marty |
Could be early signs of B2 pistion, happened to my 83sd it started in this same way. Ever once in a while it would stick in first gear and not shift did it for 2000 miles off and on ,then one day no forward gears at all. Do search lot of good info, not a hard job.
Bill |
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