[W126 Coupe] Transmission Question

mavris2 at comcast.net mavris2 at comcast.net
Mon Jan 31 21:57:01 EST 2005


Tracy,

Your welcome.
Jason
----- Original Message ----- 
From: "Tracy Walkup" <twwalkup at hotmail.com>
To: <mbcoupes at mbcoupes.com>
Sent: Monday, January 31, 2005 3:53 PM
Subject: [Norton AntiSpam] Re: [W126 Coupe] Transmission Question


>
> I am hoping for a simple fix like you suggest with the vac line.   Will 
> climb under tonite or tomorrow to ck the vac line.
>
> Thanks for our input.
>
>
>
>
>>From: <mavris2 at comcast.net>
>>Reply-To: Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com>
>>To: "Mercedes Coupes Mailing Lists" <mbcoupes at mbcoupes.com>
>>Subject: Re: [W126 Coupe] Transmission Question
>>Date: Mon, 31 Jan 2005 16:49:33 -0600
>>
>>Tracy,
>>
>>In response to you question I would take a look at possible the vacuum 
>>line had popped off the AT Modulator Valve located on the left side of the 
>>transmission.  Or the other possibility is the AT Modulator Valve has gone 
>>bad.
>>If you shifter is really wobbly its like the busing had broke, but the 
>>chances of it coming off are near impossible because there is a retainer 
>>clip.  So, I don't think that is your problem.     I had something similar 
>>on a 420sel.  Its was like diving a stick it would go but the shifting 
>>just keep getting progressive worse.  The stealership said I need a new 
>>transmission right away due to having 280,000 miles. But it shifted fine 
>>and had always been serviced. I just was not buying there answer.   I went 
>>on a hunch and took it some where else. I replaced the AT Modulator Valve 
>>on the transmission.  That solved the problem in my case.  Its shifts 
>>perfectly and the new place said that eventually it would just stop 
>>shifting.  So, I don't know but I'd kind of think that may be your 
>>problem. I know there is the valve, O-Ring and rubber cap that all come as 
>>an assembly and its rather simple to install.  You need a vacuum gauge to 
>>dial it in properly for the shift points but members here on the sight say 
>>you can tweak it.  I Installed mined and was not able to tweak it 
>>properly. So, I had the new place do it they only charged me 60 bucks. 
>>So, I can't complain.
>>
>>Jason
>>
>>----- Original Message ----- From: "Tracy Walkup" <twwalkup at hotmail.com>
>>To: <mbcoupes at mbcoupes.com>
>>Sent: Monday, January 31, 2005 10:15 AM
>>Subject: [Norton AntiSpam] [W126 Coupe] Transmission Question
>>
>>
>>>
>>>I finally got my car back on the road after a LONG motor rebuild / 
>>>replacement project.  Many posts from the group have been very helpful 
>>>over the past few months as I have done the work.
>>>
>>>The question I have is a transmission question.  I was at speed. 
>>>Everything fine.  I then noticed a lack of power.  Gave it gas and 
>>>realized then that the engine was fine.  It was as if I had pushed in the 
>>>clutch of a manual shift car.  No "connection" to the trans was the 
>>>symptom.  There was no noise, no hesitation, no indication of any kind 
>>>that there was a problem.
>>>
>>>Have not got the car to a place where I can get under it yet (that is 
>>>another AAA story for later), so I apologize in advance if this problem 
>>>turns out to be a simple third grade solution.
>>>
>>>Fluids all OK.  No apparent leaks.  Engine starts and runs normally.
>>>
>>>Questions:
>>>
>>>1.  What electronic control / connections / etc are required.    Fuse? 
>>>Plug came out of  trans?
>>>2.  If the mechanical shift linkage came off does the trans default to 
>>>neutral?  Shift rod off of trans?
>>>3.  The cable attached to the throttle linkage at firewall serves what 
>>>purpose?  (it is attached)
>>>
>>>Trans is a fresh rebuild (less than 100 miles)  Car is 1986 560 SEC.
>>>
>>>Thoughts please?
>>>
>>>
>>>Tracy in Atlanta
>>>
>>>
>>>The MB Coupes Website!
>>>W126 SEC Mailing List
>>>Postings remain property of MB Coupes, L.L.C.
>>>
>>
>>
>>The MB Coupes Website!
>>W126 SEC Mailing List
>>Postings remain property of MB Coupes, L.L.C.
>
>
> The MB Coupes Website!
> W126 SEC Mailing List
> Postings remain property of MB Coupes, L.L.C.
> 




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