After replacing the timing chain for the second time, when I press the accelerator pedal it jumps timing and starts running very rough?

Tiny
JETTLEE
  • MEMBER
  • 2008 FORD MUSTANG
  • 4.6L
  • V8
  • 2WD
  • MANUAL
  • 120,000 MILES
The car listed above is a GT. I've put timing chain in twice. It cranks perfectly idles great, as soon as I hit the gas pedal it jumps timing and starts running very rough. Idk why.
Thursday, April 20th, 2023 AT 5:08 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,973 POSTS
It sounds like the timing chain tensioner is not working. Did you replace that as well? I and if so, did you remove the lock pin from it? Here is what I am talking about. Also, did you replace the timing chain guides as well? Please check out the images below to see what I am talking about. Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.
Was this
answer
helpful?
Yes
No
Friday, April 21st, 2023 AT 2:10 PM

Please login or register to post a reply.

Sponsored links