Ok

My transmission vacuum line got disconnected during some repairs and caused hard shifting. It was driven a few times like this until my brother and I had time to look at the problem. Knew it was vacuum related but family, other priorities prevailed. Maybe they shouldn't have.

The vacuum line has been reconnected and the forward gears shift smooth as butter. Problem is, reverse is no longer functioning.

Did I trash the gear (which makes no sense), or is this something really stupid?

Thanks

Bob

__________________
1982 300TD 210K miles ("The Replacement" aka "The Anvil") - SOLD
1979 300SD 245K miles (never ending project)
2007 Pinarello F3:13
1995 Ducati 916 (SOLD, sniff)
1999 Ducati 900SSie (SOLD)

other information : when put into reverse there is an ever so slight lurch backward..then stops as if something is holding it back. Then, no amount of gas will make it move, NOR will it move by pushing it.

put it in neutral, and it can be pushed. In fact Reverse works like park. If on small incline will roll back and lock just as it would in park without the emergency brake on.

__________________
1982 300TD 210K miles ("The Replacement" aka "The Anvil") - SOLD
1979 300SD 245K miles (never ending project)
2007 Pinarello F3:13
1995 Ducati 916 (SOLD, sniff)
1999 Ducati 900SSie (SOLD)

No vaccum issue would make the transmission not enguage in a gear.

Maybe the linkage got moved? Check to see if it is indeed going into reverse and not still in park or neutral.

Queer, I'm interested in the answer too... I found a NICE '89 560 with no reverse. All four others work fine...

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

Could you please explain at what point? I'm not by any stretch of the imagination and expert on transmissions. Also this happened over the space of a few days. It got slower and slower to engage into reverse (kinda like my TD) and then just stopped going into reverse altogether.

__________________
1982 300TD 210K miles ("The Replacement" aka "The Anvil") - SOLD
1979 300SD 245K miles (never ending project)
2007 Pinarello F3:13
1995 Ducati 916 (SOLD, sniff)
1999 Ducati 900SSie (SOLD)

I agree with John.

The linkage is not adjusted properly and the transmission remains in Park while you believe that it's in Reverse. It's behaving just like it's still in Park........one click away from Reverse.

Pull the shifter down toward neutral..........try to feel a transmission detent below the current "reverse"...........and see if you get reverse.

Ok tried that (or rather brother without forum ID tried it).

it clicks, it leaps like it's in reverse, but give it gas and it's like the brakes are on. Rev it and it feels like the car is bogged down/under lots of load.

__________________
1982 300TD 210K miles ("The Replacement" aka "The Anvil") - SOLD
1979 300SD 245K miles (never ending project)
2007 Pinarello F3:13
1995 Ducati 916 (SOLD, sniff)
1999 Ducati 900SSie (SOLD)

It might be rebuild time. Post this in tech help. Maybe do a search on your transmission 722.361

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It is a truism that almost any sect, cult, or religion will legislate its creed into law if it acquires the political power to do so. Robert A. Heinlein


09 Jetta TDI
1985 300D

When you say that you "tried that"............where was the gear selector during this process........in "N"...........or between positions??

With the selector in "N", can you push the vehicle........will it roll?

Definitely what I want to avoid...4 forward gears work great.

Brian, it rolls fine in neutral, gear shifter was moved incrementally about 3mm at a time to try and get R to engage (give or take of course).

__________________
1982 300TD 210K miles ("The Replacement" aka "The Anvil") - SOLD
1979 300SD 245K miles (never ending project)
2007 Pinarello F3:13
1995 Ducati 916 (SOLD, sniff)
1999 Ducati 900SSie (SOLD)

http://www.peachparts.com/shopforum/showthread.php?t=99048&highlight=w126+reverse+gear

That's what I found yesterday. The distinction here is mine occurred over the space of a few days and was precipitated by fixing the transmission vacuum line which eliminated hard forward gear shifting but also eliminated the reverse gear altogether. Before this week, the transmission would engage into R instantaneously (unlike my TD which does take a few seconds and sometimes some gas to engage).

If something just 'snapped' then i would've expected R to disappear quickly, not degrade quickly but that may just be my lack of knowledge of auto trans.

__________________
1982 300TD 210K miles ("The Replacement" aka "The Anvil") - SOLD
1979 300SD 245K miles (never ending project)
2007 Pinarello F3:13
1995 Ducati 916 (SOLD, sniff)
1999 Ducati 900SSie (SOLD)

I was thinking that the park pawl might not be disengaging, since it sounds like it does go into reverse.........but the vehicle won't move.

It still appears to be a linkage issue of some sort........not allowing full pressure in reverse so the clutches are slipping.

Thanks BC. Anyone have diagrams of the linkage, etc. ? unfortunately FSM is very limited in this area.

__________________
1982 300TD 210K miles ("The Replacement" aka "The Anvil") - SOLD
1979 300SD 245K miles (never ending project)
2007 Pinarello F3:13
1995 Ducati 916 (SOLD, sniff)
1999 Ducati 900SSie (SOLD)

You could always disconnect the line that you reconnected. Yes, you might get your hard shifts back, but hey...who knows, you might get reverse back too.

__________________
It is a truism that almost any sect, cult, or religion will legislate its creed into law if it acquires the political power to do so. Robert A. Heinlein


09 Jetta TDI
1985 300D

tried disconnecting the line, and unfortunately R did not come back..that's what making this all so bizarre.

__________________
1982 300TD 210K miles ("The Replacement" aka "The Anvil") - SOLD
1979 300SD 245K miles (never ending project)
2007 Pinarello F3:13
1995 Ducati 916 (SOLD, sniff)
1999 Ducati 900SSie (SOLD)