Hey guys, I have a 2002 auto 2wd v6 3.9L Dakota. about 5 days ago i started to hear my engine knocking, listening to it, it sounds like its probably coming from the bottom of the motor. The engine only knocks though when I have it in park. As soon as I put it in reverse or drive, the knock goes away. I tried changing the oil and putting some lucas in just to see if it would help, and of course it didnt. Any ideas?

Thanks

 

I will move this to the 2nd Generation sub-forum.

 

Sounds like a crank bearing issue.

When you put it in Reverse or Drive, you're putting a load on the crank, which to me, sounds like it could be the thrust bearing on the crank.

Could also be a broken flex plate.

 

ha, well that knocking was going on for about a week, and now all of a sudden, i go to start up my truck, and it wont... Its clicking but wont actually get to the starting part, even with a jump from another vehicle. think it could be related?

 

Check your flexplate.

 

Yup, flex plate