loud knocking noise


teamp

10+ Year Member

Joined
Apr 15, 2008
Messages
3
Points
3,001
Vehicle Year
98
Transmission
Manual
I have a 1998 4x4 4.0 manual tranny ranger that make a loud knocking noise(almost sounds like a deisel). Dont know if noise is coming from tranny or motor. Any suggestions
 
My rod bearings were shot due to oil starvation, my truck made a diesel like sound that was loudest in the engine oil sump. The engine was aslo louder when cold and got only slightly quieter when it warmed up. I replaced my engine and checked my old engines rods, they all had quite a bit of radial and axial play at the crank. FYI I drove about 50,000 miles on bad rod bearings - gotta love these german engines, they will do anything.
P.S. mine was a "fast" diesel like Knock as each rod was impacting the journals on every stroke, I hope this helps you.
 

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