CAR RUNS GOOD, BUT WHEN IM CRUISING 55-65 MPH UNDER 3K RPM THE CAR WILL JERK ONCE OR TWICE

  • Tiny
  • Deucey
  • 1991 BMW 535i
  • 176 miles

Id full tune up also change throttle body. Its been doing this for about a year. It does it the most at 55 mph at low rpms. The 55 mark is red. Dont know if that mean anything. What can be the problem

Monday, November 21st, 2011 AT 5:53 PM

1 Answer

  • Tiny
  • Dr. Hagerty
  • Expert
  • 9,713 posts

Bad crank sensor

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Monday, March 11th, 2013 AT 6:26 PM

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