Knocking sound

2002 DODGE TRUCK
199,103 MILES • 5.9L • 6 CYL • 4WD • AUTOMATIC
Avatar
STEVEN CAMPBELL
  • MEMBER
  • 2 POSTS
About two years ago the vacuum pump seal went bad, then the turbo went bad, I replaced both and two weeks later it started knocking and slipping from first to second gear. Could that possibly be the torque converter?
Oct 11, 2018 at 8:18 AM
Advertisement
Avatar
STRAILER
  • ✓Experienced Mechanic
  • 55,056 POSTS
It does not sounds like it. Do you have a check engine light on? Because it sounds more like the turbine shaft speed sensor is going out. Lets run the codes to see what comes up. Can you please shoot a quick video with your phone so we can hear the noise? That would be great. You can upload it here with your response.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Here is the location of the sensor so you can change it.

Check out the diagrams (below). Please let us know what happens.

Cheers, Ken
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Oct 13, 2018 at 5:41 AM
Avatar
STEVEN CAMPBELL
  • MEMBER
  • 2 POSTS
No check engine light, and no codes pull up, even with cummins insight (a buddy works at a shop and brought the computer home).
Oct 13, 2018 at 6:05 AM
Avatar
STRAILER
  • ✓Experienced Mechanic
  • 55,056 POSTS
Where does the knock noise seem like it coming from? A video (from your phone) would help me see what is going on hard to tell, just guessing. Let me know.
Oct 15, 2018 at 3:21 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.