My truck just started making a loud knocking sound coming from the front of the engine.
Same as this truck (less the deisel sound).
http://www.youtube.com/watch?v=jGXJRUv0gt0&feature=player_detailpage
Here is another with the same sound.
http://www.youtube.com/watch?v=sRX72wcgJ-g&feature=player_detailpage


Lifters? cam lobes? Anyone heard this before.

 

Thats a rod knock. That hurts my ears. Time to drop the pan and see how much play you have there. If it's that bad my guess is alot.

 

look at what the second vid caption is , " turned out to be a crack'd flexplate" chrysler is known for this problem , make sure you check it first by pulling either the starter or the inspection plate at the bottom of the trans and see if can see a crack or move the ring gear at all seperate from the rest of it. or a long screwdriver or stethescope on the oil pan and trans bellhousing to see where the noise is loudest.

 

I didn't even notice that. That is def a possibility. I haven't seen many Dodges in my shop with that problem but that would be better than a rod knock.

 

I was able to pin point the problem to a lifter on cylinder #1. I changed the oil and started the engine to see if the would get the lifter to work again and the noise is now intermitten. At idle it appears normal with a very light tap until I rev to 2k rpm or above then the knocking comes and goes spuradically not in sync with the rpm given. back to idle then its normal.
Any thoughts?
Thanks

Thanks

 

Yeah...stop driving it till you find the problem.

 

I have a 2000 4x4 Dakota with a 4.7 an the enigine began to knock after my lower radiator hose blew apart any ideals on what to do???

 

Stop driving it.

If it is knocking loud, it is rebuild time......

 

Oh no I havent drove it at all since it started knockin!!! Its not a really loud knock either, an there isnt any water in my oil and still have great compression on the motor a good oil pressure

 

Good oil pressure won't last long...... Need to find out where the noise is coming from, and just what exactly is making it. Just a wooden dowel makes a decent stethoscope.