Author Topic: 71 280sl won't accelerate  (Read 1924 times)

premier

  • Guest
71 280sl won't accelerate
« on: June 27, 2017, 00:48:43 »
Two wire vinturi on side of throttle when wired up the car won't accelerate as if no response from gas pedal. If 1 wire is removed then the car seems to accelerate just right...I'm in need of help with this concern if you have any experience with this system. Any advice is appreciated.

cfm65@me.com

  • Associate Member
  • Gold
  • *****
  • Cape Town, South Africa
  • Posts: 738
Re: 71 280sl won't accelerate
« Reply #1 on: June 27, 2017, 06:37:50 »
Hi Premier,
Welcome to this forum.
The 'two wire vintury on side of throttle' is actually a sensor providing throttle position to the auto gearbox.  That switch has nothing to do with acceleration.
 HOWEVER, if you mean the auto box is slipping and therefor 'no acceleration' then that switch must be reset.
The switch provides throttle position info to the auto gearbox in order to provide a certain amount of slip when selecting D or R. As soon as the throttle is opened a little, the switch will open to allow normal acceleration.
Rest the switch position to open sooner. There is a lot of info on this forum.
Regards
Chris
28 Ford Model A Pickup
29 Chevy Phaeton
67 E Type FHC
67 250SL 5 speed
83 911SC
2015 VW T5 California Pop Top