Re: [MBZ] Hard Shifting

2017-08-08 Thread Kaleb C. Striplin via Mercedes
t; To: Mercedes Discussion List > Reply To: Mercedes Discussion List > Cc: Kaleb C. Striplin > Subject: Re: [MBZ] Hard Shifting > > There are dozens of vacuum lines on that car. Any one of them is probably > become disconnected or had the rubber connector split or something. I had to &

Re: [MBZ] Hard Shifting

2017-08-08 Thread Rick Knoble via Mercedes
: Kaleb C. Striplin Subject: Re: [MBZ] Hard Shifting There are dozens of vacuum lines on that car. Any one of them is probably become disconnected or had the rubber connector split or something. I had to replace a couple of connectors before Craig got it. It's probably got very little boost as well

Re: [MBZ] Hard Shifting

2017-08-08 Thread Kaleb C. Striplin via Mercedes
There are dozens of vacuum lines on that car. Any one of them is probably become disconnected or had the rubber connector split or something. I had to replace a couple of connectors before Craig got it. It's probably got very little boost as well since a vacuum leak will cause the wastegate to

Re: [MBZ] Hard Shifting

2017-08-08 Thread OK Don via Mercedes
There is a vacuum modulator on the drivers side of the tranny, slightly towards the front, IIRC. Check the tubing going to it. Again, IIRC, there is a rubber cap over the adjustment, which is a spring loaded shaft (small dia.) with a small piece of rectangular metal at right angles to the shaft

Re: [MBZ] Hard Shifting

2017-08-08 Thread Karl Wittnebel via Mercedes
Research the blue ufo and associated vacuum plumbing. There is also a modulator on the tranny that can be adjusted, but fundamentally the blue ufo's job is to soften the shifts at less than full throttle (or cold) by altering the vacuum signal to the tranny, and therefore the transmission clutch

Re: [MBZ] Hard Shifting

2017-08-08 Thread Kaleb C. Striplin via Mercedes
You have a vacuum hose loose somewhere Sent from my iPhone > On Aug 8, 2017, at 1:46 PM, Craig via Mercedes wrote: > > In our '90 E300D, I have noticed the shifting varies from hard to REALLY > hard. I would think this is not good for things. > > It doesn't bother me

Re: [MBZ] Hard Shifting

2017-08-08 Thread Dan--- via Mercedes
This is an issue with your vacuum system. Any time you have hard shifts, you've either lost the vacuum signal or the controls that mange it are messed up. -D > On Aug 8, 2017, at 2:46 PM, Craig via Mercedes wrote: > > In our '90 E300D, I have noticed the shifting