Knocking sound

2002 DODGE TRUCK
199,103 MILES • 5.9L • 6 CYL • 4WD • AUTOMATIC
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STEVEN CAMPBELL
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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 3:18 PM
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STRAILER
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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
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Oct 13, 2018 at 12:41 PM
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STEVEN CAMPBELL
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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 1:05 PM
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STRAILER
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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 10:21 AM