I've checked the sources in beginning part of the thread for a vacuum diagram. My car is a 1989 190D 2.5l automatic they don't list it. Anyone know where to get the diagram.

I change my oil and fuel filter and checked the air filter now I'm having shifting problems. Probably knocked or broke a vacuum line some where.

The transmission won't shift into high gear revs to 4500+ rpm


Thank You

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1989 Arctic White 190D 2.5l auto w/400E Brakes and a 5spd waiting for me to install

1977 280SL Euro M110/w 4spd

2001 Dodge Ram 2500 Quad cab 4x4
dyno 383hp / 916ft#'s

Find the kickdown switch beneath the accelerator pedal. Unlug the switch. Take the vehicle for a drive and see if it's cured.

WOW that was quick.

It was unplugged and I plugged back thinking it was the problem. It did get a little worse about revving. I'll unplug it but the shifting problem existed before I plugged it back in.

It would suddenly down shift for no apparent reason after car warmed up. Then it would not shift into high gear unless it revved then took foot off accelerator. Shifted into high for a less than a minute and down shift again

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1989 Arctic White 190D 2.5l auto w/400E Brakes and a 5spd waiting for me to install

1977 280SL Euro M110/w 4spd

2001 Dodge Ram 2500 Quad cab 4x4
dyno 383hp / 916ft#'s

Your original problem was that it wouldn't upshift.

Now, it will suddenly downshift.

Maybe you better provide all the symptoms in a single post??

I change my oil and fuel filter and checked the air filter now I'm having shifting problems. Probably knocked or broke a vacuum line some where.

The original problem was It would suddenly down shift for no apparent reason after car warmed up. After it would not shift into high gear unless it revved then took foot off accelerator. Shifted into high for a less than a minute and down shift again.

Trying to find problem I found the down shift switch unplugged. I plugged it in and now it would not shift with out real high revving.


[B]Vacuum pump went bad . replaced pump Solved all issues Thanks[/B]

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1989 Arctic White 190D 2.5l auto w/400E Brakes and a 5spd waiting for me to install

1977 280SL Euro M110/w 4spd

2001 Dodge Ram 2500 Quad cab 4x4
dyno 383hp / 916ft#'s

You might have more than one problem. The switch is definitely NG. Leave unplugged until you replace it.

The downshift, and late upshifts are caused by a Bowden cable that is too tight. There's an adjustment to slacken that cable which will bring earlier upshifts and delay the downshifts. I'm not sure of where the adjustment is on that vehicle. Maybe others can help you with that location.

Also, if you wish to continue with this discussion, it should be done on a new thread.....this one is for vacuum issues.........not your problem.

No problems before I did the service work I did.

I think I either disconnected or broke a vacuum line unknowingly. I struggled to get the air filter box out.

Looking for vacuum diagram

__________________
1989 Arctic White 190D 2.5l auto w/400E Brakes and a 5spd waiting for me to install

1977 280SL Euro M110/w 4spd

2001 Dodge Ram 2500 Quad cab 4x4
dyno 383hp / 916ft#'s