Hey guys, im hoping someone can help me. I just got a 1986 mercedes 300sdl. Im having some issues with the trans and vacuum line routing. When i got it the vacuum lines were not even hooked up. Transmission has no vacuum going to it and im having a problem with 4th gear being really touchy. when accelerating 3-4 shift will rev. If you let off the throttle itll engage 4h gear and itll stay if your on flat ground but and soon as you lay into the throttle a little bit to maintain speed up an incline itll kick out and just rev. all the other gears are fine. I found a vacuum line diagram online and i tried hooking it up referencing the diagram but i still dont think its right. Im hoping someone with an sdl can take pics of the vacuum lines connecting to the injection pump and near it and what color goes to what?? ALDA has been removed from this car. It was that way when i got it. Ive heard that they run great without and can be left off and some say it must be on there. Please i need help. I want to make sure vacuum is correct before i rule out a bad trans.