I read alot before I jumped in to this mystery of finding /controlling vacuum leaks in our w126's. I have a 87 300 SDL. Tranny shifting hard both upshift and down shift esp in 2-3. Gets smoother with more pedal on the metal. Now,being that it's my first time using a mityvac, I "T"d it from the blue saucer where the tranny modulator is attahed to..NO VACUUM!...as in ZERO on idle. So,I connected it to the brake booster and got 25 hg of vacuum there. So while I'm there I attached the mityvac directly to the tranny modulator and pulled 7 hg of vacuum and drove it.. IT DROVE PERFECTLY!! NO HARD SHIFT, NO FLARE, BOTH UPSHIFT AND DOWN SHIFT . so what now? Atleast I know that the transmission is working perfectly. All I need is to get the blue saucer to pull vacuum...how do I do that?
thanks for the help

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a2


1978 280 CE silver
1986 560 SL black
1987 300 SDL cream
1994 SL 500 brilliant green
1997 E 300d dessert silver
2005 FORD F250 Superduty Crew cab 4x4

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