Quote:
Originally Posted by rocketboy52
The blue flying saucer on the fender is actually my vacuum amplifier. The VCV output goes to a seperate "in"line on the vacuum amp, then through a "damper (#72) and then to the tranny.
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Correct. I'm suggesting to bypass the blue flying saucer entirely, and connect the VCV output directly to the tube that goes to the transmission modulator. A number of people have done this with good results. I'm not sure what MB was doing with that vac amplifier, but it was deleted starting with the 1992 model year.
Quote:
Originally Posted by rocketboy52
I would say the bleed down on the modulator is probably more like 5 seconds then 10 when it is sucked down to 15" Hg.
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That sounds a bit excessive to me. Might be time for a new modulator - they're not that expensive. This is a medium PITA job, as it's hard to see well enough to get the new modulator in place with the O-ring properly seated (so you don't have an ATF leak when you're done). There may be better clearance on the 2.5 with the smaller 722.4 tranny though - I've only done it on an M119/722.3 where there isn't even room for the hands of a small child. So, maybe it's not too difficult on your car. The modulator should hold a steady 15" vacuum until you release it by flipping the valve on the Mity-Vac.
