The controlled leak on the IP for the tranny control WON"T hold a vac, there is nothing wrong with the amplifier UNLESS you get the wrong vac signal to the tranny. If you have a MitiVac (highly recommended if you don't), start the car and see what vac you have on the tranny nipple on the vac amplifier -- should be on the order of 17" or so.

If less than 15", you need to find the leaks and fix them (usually the rubber connectors). Dont' forget to check the restriction in the hose from the vac pump at the big T up front, it can get plugged. DON"T take it out, the tranny will never shift correctly!

Vac on the tranny nipple should drop to 0 at wide opne throttle -- check while driving with a T or by using a separate vac source on the IP.

87 will have a separate electric pump for the door locks, they don't run off the engine pump. Climate control does, though, so if the AC won't blow out the center vents, you have low vac.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!