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Cruise control

Tiny
MOTOPEDLR
  • MEMBER
  • 1991 MERCEDES BENZ 190D
  • V8
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
The cruise control on my 91 mercedes disengages after a few seconds.
Tuesday, February 1st, 2011 AT 12:04 PM

3 Replies

Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
Try replacement of the brake light switch.
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Tuesday, February 1st, 2011 AT 12:13 PM
Tiny
MOTOPEDLR
  • MEMBER
  • 3 POSTS
I tend to think it is a vacuum issue since I have a "dead spot" at light acceleration between 1200 and 1600 rpm. I did try to engage the cruise with a very light pressure on the brake pedal and there was NO indication of engagement. If I try to engage cruise normally it engages and then with any slight elevation or declination of terrain the cruise disengages. Oh, I really appreciate your brake switch suggestion, but think I ruled it out. Please advise if I am mistaken.
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Sunday, February 13th, 2011 AT 10:21 PM
Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
Sorry, I dont know
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Thursday, January 3rd, 2013 AT 6:18 AM

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