Car buck/jerk near idle speed while in first gear.

Read the FAQ and still not sure about something? Want to shift faster? Post here.
Rope-Pusher
Master Standardshifter
Posts: 11002
Joined: Mon Mar 16, 2009 3:44 pm
Cars: '08 Jeep Liberty
Location: Greater Detroit Area

Re: Car buck/jerk near idle speed while in first gear.

Post by Rope-Pusher » Thu Apr 25, 2013 8:21 pm

When the damper in the hub of the clutch disk is worn, it's the torsional equivalent of having worn shocks. The springs in the clutch hub need to be damped.

Good to check on powertrain mounts as well - if they are worn or torn the powertrain can wind up and unwind in an uncontrolled manner.
'08 Jeep Liberty 6-Speed MT - "Last of the Mohicans"

havoktsx
Junior Standardshifter
Posts: 27
Joined: Fri Apr 19, 2013 5:32 pm
Location: Honolulu, HI

Re: Car buck/jerk near idle speed while in first gear.

Post by havoktsx » Mon May 13, 2013 10:20 pm

for tickles and giggles, i turned off vsa on my car and voila! jerking/bucking 90% gone in 1st and 2nd gear!

my guess is that the combination of DBW plus an aggressive vsa algorithm has something to do with it. with vsa off, the throttle cut-off seems gradual enough where the bucking is gone. why this is so i have no clue.

if your cars have a button or a way to turn off any type of vsa/stability control, try driving with it off and see if this helps.
08' Acura TSX ASM/Ebony 6MT

User avatar
ClutchFork
Master Standardshifter
Posts: 1637
Joined: Wed Mar 06, 2013 2:55 pm
Cars: 2001 S10 2.2L manual
Location: Detroit MI

Re: Car buck/jerk near idle speed while in first gear.

Post by ClutchFork » Sat Jan 11, 2020 11:09 am

My 2001 S10 does not buck when idling along in first gear, but the 1992 Mustang easily will buck. Mustang has 3.08 gear. S10 has 3.73 gear. I wonder if that makes a difference. But I used to have a 1995 F150 that would sometimes buck. Think that was geared somewhere around 3.30 or so.
Stick shiftin since '77
theholycow wrote:Why in the world would you even want to be as smooth as an automatic? Might as well just drive an automatic...

Post Reply