Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Vintage Mercedes Forum

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 05-17-2019, 12:51 AM
Registered User
 
Join Date: Oct 2015
Posts: 150
76 mercedes 280c vcv valve

does a 76 Mercedes 280c have a vcv valve? feels like my transmission 722.102 is in limp mode will not go pass 60mph
Reply With Quote
  #2  
Old 05-17-2019, 02:06 AM
Registered User
 
Join Date: Dec 2010
Location: Ontario
Posts: 1,651
I kind of thought a VCV was only found on diesels.
Reply With Quote
  #3  
Old 05-17-2019, 09:04 AM
Registered User
 
Join Date: Oct 2015
Posts: 150
vcv valve

ok any ideas about limp mode ? notice transmission stays in 2nd gear and defroster cuts out . not sure if theres a diagnostic plug for codes . or where to start. going to make a vacuum machine leak detecter . because none of my locks or seat lock work . what are the causes of limp mode ? 76 Mercedes 280c 114073 12 1067 61 vin number
Reply With Quote
  #4  
Old 05-17-2019, 10:59 AM
Registered User
 
Join Date: Jan 2006
Location: Tucson, AZ
Posts: 4,444
You've got me confused. What are you calling a "VCV" valve?

There is a vacuum modulator, a "kick down" switch and the control rod on the transmission.

The modulator has a vacuum line leading from the rear of the intake manifold to the RH side of the transmission.

The control rod leads from the accelerator linkage to the RH side of the transmission.

The kick down switch is mounted beneath the accelerator pedal.

The only one of these which would/could prevent the transmission from shifting would be the kick down switch and I doubt it would prevent up-shifts but I've been wrong before. Try disconnecting it.

The smoke machine is a good idea. If you decide to make one I've got a surplus of the wire I'd be happy to send you. No charge.


Here's an DIY one. It is basically the same as the one I made.

https://www.youtube.com/watch?v=Np_duzsaZxI
__________________
“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.”
― Brian P. Cleary, You Oughta Know By Now
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 01:33 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page