tranny question with a twist
 

I have been going over my sons 85 190 E in preperation for selling it for him. Car shows 83K engine strong etc. problem! at soft acceleration there is heavy 2 to 3 flare but not always! sometime it shifts smooth as can be.It shows no flare on hard acceleration but dose tend to down shift a bit hard it show no flare when shifted manualy but pretty hard down shifts manualy. I have adjusted modulator back and forth,replaced rubber tubing at moulator an searched high and low for any vacum leaks all other vacum assisted items work fine, I have experence with modulator adjustments as have done both my SD and SE with no problems.
William Rogers........

Check the vac at the line to the tranny -- you may have a leak in the line itself -- the plastic gets old and gives out.

A low vac condition at the intake manifold from some other problem will give you the same condtion, too.

Peter

Thank you Peter I find your post to be some of the clearest and most accurate and reliable on this site.The 190 is a nice driving car but sure is harder to work on than my 126's or dear old 115 240 D. The modulator on the 190 has minimal space to get at it to say the least.Should vacuum reading be similar at modulator as at manifold ?
William Rogers.........

Yes. Also make sure you can pull and hold a vac on the modulator at the manifold connection, they have been known to leak.

Peter