Andy J
Well-Known Member
Hey guys,
You.might recall a few months ago i did a complete tear.down and rebuild on my 03 navigator 5.4 32v.
It had been running great until last night. I was on my way home from work and i stopped at a light and noticed a loud knocking coming from under the truck. I finished my drive home, and when i got.home, i crawled under the truck. The noise sounds like its coming from the upper bell housing area and when you get near the passenger side, its very loud. The noise only happens up.to about 1500 rpms, and the. It goes away. The engine is running perfectly smoothe and it drives great too. The engine has good oil pressure and is newly built so in pretty sure its not the engine.
The truck does have the 4r100 trans and from what i have been reading, the flexplates and converters in the diesels with 4r100 can cause issues. I pulled the inspection cover for the trans, but didnt see.anything wrong.
What are your thoughts.
Thanks,
Andy
You.might recall a few months ago i did a complete tear.down and rebuild on my 03 navigator 5.4 32v.
It had been running great until last night. I was on my way home from work and i stopped at a light and noticed a loud knocking coming from under the truck. I finished my drive home, and when i got.home, i crawled under the truck. The noise sounds like its coming from the upper bell housing area and when you get near the passenger side, its very loud. The noise only happens up.to about 1500 rpms, and the. It goes away. The engine is running perfectly smoothe and it drives great too. The engine has good oil pressure and is newly built so in pretty sure its not the engine.
The truck does have the 4r100 trans and from what i have been reading, the flexplates and converters in the diesels with 4r100 can cause issues. I pulled the inspection cover for the trans, but didnt see.anything wrong.
What are your thoughts.
Thanks,
Andy