My car shifts erratically

Tiny
JOE SOK
  • 2003 HYUNDAI XG350
  • 69,000 MILES

My car shifts erratically. Between gears it begins to jerk and be ready to stall. I let up on the gas and the shift occurs. Car accelerates slowly until time for next shift is approaching, then jerking begins again. When car is stopped, when brake is released car lunges forward as if you had been rear ended. At idle RPM's are about 550.

Do you
have the same problem?
Yes
No
Thursday, December 20th, 2012 AT 1:43 AM

1 Reply

Tiny
ASEMASTER6371
  • EXPERT
  • 25,520 POSTS

I would start at looking at the cat converter back pressure. It sounds like the engine cannot breathe

Roy

Was this
answer
helpful?
Yes
No
Please consider a donation if we helped you
Thursday, December 20th, 2012 AT 2:14 AM

Please login or register to post a reply.

Related Engine Buck Questions

Recommended articles