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Car jerking when stopping

Tiny
KKSMITH
  • MEMBER
  • MERCURY SABLE
My sons car periodically will jerk or buck as he slows down to break. It does not do it all the time. The car is a 94 Sable. Any ideas what could be wrong?
Thursday, November 30th, 2006 AT 1:06 PM

3 Replies

Tiny
CATCH_15
  • MECHANIC
  • 250 POSTS
Does it feel like something is wrong with the engine or does it feel like the transmission is having trouble downshifting?
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Saturday, December 2nd, 2006 AT 2:50 PM
Tiny
KKSMITH
  • MEMBER
  • 2 POSTS
It sounds more like an engine issue not down shifting.
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Thursday, December 7th, 2006 AT 3:40 PM
Tiny
INDYUKE
  • MECHANIC
  • 416 POSTS
Does the jerking feel like the car is wanting to continue moving. Sometimes if the torque converter lockup solenoid is bad, it won't allow the converter to disengage at the right time and you get the feeling as if the car had a manual transmission and it won't come out of gear even though you're laying on the brake and forcing the engine below idle rpm. Or does it feel like the engine is running rough and jerking the car as you're slowing down? Does the check engine light come on or flash?
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Saturday, December 23rd, 2006 AT 5:53 PM

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