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#1
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78 240D automatic shift problem
I had a problem with the engine shutting off and after much research (with help from this forum) fixed the vacuum so it turns off promptly.
It appears I have created another problem with the kick-down on the automatic. It wants to slip if I force a kick-down. If I simply manually down shift, no slippage. Further research pointed to a common vacuum modulator problem with leaks or adjustments needed... One problem; I can not find a vacuum modulator on this transmission. I also can not find the location of any other components controlling this problem. Any suggestions on resources? Thanks |
#2
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The '78 doesn't have a vacuum modulator. Look at the back of the engine and see a rod that goes back to the trans that is hooked to the throttle linkage. I lengthened the rod and my trans shifted better...no slip. There is an 8mm head bolt that clamps a slider on the rod. ALSO I put a quart of TransX in my trans and all is well. Try it.
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My Truck.. 2007 DODGE, 5.9 Cummins, 6spd stick, 4X4. My car..1977 240D, OTHER WHEELS...1955 VW Oval window bug, European Delivery (Holland) with a 1700cc, 2 barrel, Porsche drum brakes. 1939 WILLYS Pick-up. 1967 Triumph 200cc Tiger Cub. 1976 Honda 550F 4cyl Motor Cycle. |
#3
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Thank you -- At least I know I was not overlooking something -- I will try that and post the results.
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#4
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It Worked !
The advice on the linkage adjustment and the Transx made a major improvement in the shift quality and also fixed the kick-down slip problem.
Thanks |
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