Transmission shifts hard

Tiny
TRELISHIEAPRINCE
  • MEMBER
  • 2006 HYUNDAI SONATA
  • 3.3L
  • V6
  • AUTOMATIC
  • 148,000 MILES
My car shifts hard and rough out of gear and also accelerates on its own when I place it into gear.
Saturday, July 1st, 2017 AT 9:50 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Hello,

It sounds like you may have a plugged catalytic converter which messes with the MAF. Here is a guide so you can run some tests

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

Please run some tests and get back to us we are interested to see what it is.

Cheers, Ken
Was this
answer
helpful?
Yes
No
Monday, July 3rd, 2017 AT 1:03 PM

Please login or register to post a reply.

Sponsored links