catastrophic failures of the 3rd gens?

[Dieselnerd]

There is a current Cummins recall for 2006-2007 engines with improperly manufactured connecting rods that can break. I just saw the recall the other day on an RV site. It is mainly on Monaco and a couple of other high end motorhomes. It does not apply to our engines. Someone may have heard about that and thought it was for our trucks.

 

[JEstes]

Somebody correct me if I'm wrong, but aren't most of the valve seat issues from guys that get the engine pretty friggin' hot(small turbo, lots of fuel) ?

 

[Bob4x4]

There is a current Cummins recall for 2006-2007 engines with improperly manufactured connecting rods that can break. I just saw the recall the other day on an RV site. It is mainly on Monaco and a couple of other high end motorhomes. It does not apply to our engines. Someone may have heard about that and thought it was for our trucks.

There was also a rrt on our 3rd gens for crank problem... ... ...



Bob

 

[KKunz]

The guy that told me this is a dealer friend of mine. I told him I wanted him to find me a 3rd gen said that he had seen a lot with problems ( rods cracked blocks) thought it would be better if I kept my 99 24v but I think I still want a 3rd gen.

 

[cerberusiam]

The guy that told me this is a dealer friend of mine. I told him I wanted him to find me a 3rd gen said that he had seen a lot with problems ( rods cracked blocks) thought it would be better if I kept my 99 24v but I think I still want a 3rd gen.

If he is seeing a "lot" of these problems he must be buying every problem truck off the dealer sales line ups.



Its just not happening that way in the rest of the world. Dodge has now surpassed Ford in light truck sales. Considering the problems of the 6. 0, I don't think that would be happening if this was wide spread.

 

[drury]

I had a catastrophic failure of the transmission input shaft and turbo, but that was entirely my fault. Too much power



The turbo was interesting. Apparently what happened was that the stock transmission input shaft shattered under boost and enough pieces made it into my expensive aftermarket torque converter to lock it up and shut down the engine. This shut down the oil pump and starved the turbo bearings for oil, so they promptly burned up.

 

[rbattelle]

Dodge has now surpassed Ford in light truck sales.

Are you sure about that? I haven't seen any data that indicates this. Everything I see says F-series are #1, followed by Silverado, followed by Ram.



Ryan

 

[cerberusiam]

Are you sure about that? I haven't seen any data that indicates this. Everything I see says F-series are #1, followed by Silverado, followed by Ram.



Ryan

The link to the article was posted on one of these sites and referenced the last quarter. How they compiled and interpreted the figures may be suspect but like any statistics, they can be compiled to convince or deceive.



Considering the issues Ford is having with the 6. x series, well, the basis is there for the interpretation.



Either way, there doesn't seem to be a lot of evidence to support wholesale catastrophic failure in the Cummins.

 

[NLeach]

PSD yrs 2001-2003 had PMR (powdered metal rods) and they were prone to windowing the block at around 400 rwhp,but if running lots of timing they would fail sooner. Never heard of a CTD throwing a rod at those hp levels,I believe the CTD rods are forged steel,alot stronger.

 

[Bob4x4]

PSD yrs 2001-2003 had PMR (powdered metal rods) and they were prone to windowing the block at around 400 rwhp,but if running lots of timing they would fail sooner. Never heard of a CTD throwing a rod at those hp levels,I believe the CTD rods are forged steel,alot stronger.

A runaway diesel will window any make engine regardless of rod size :-laf



Bob

 

['strokeThis_'07]

Dodge surpassed Ford in chassis cab sales in the month of July...



And if your dealer tells you there are alot of 3rd gens throwing rods, Id go somewhere else. He either a) has no idea what hes talking about or b) hes worked on them all and screwed them up causing catastrophic failure. The only Cummins that throw rods are making big time power or somebody does something stupid and causes it... it just isnt common.

 

[KKunz]

It does not sound like rods are an issue with the HPCR trucks……But what is going on with valve seats?

 

[Wayne M.]

I've been tuned in around here since the beginning of the website. I have never heard of any pattern failure of any series Cummins 6B other than the 2nd gen porus block castings and the ISB fuel system. Never anything that couldn't be dealt with by being proactive.

I don't think Cummins would let an engine out the door that would just fail from fatigue, especially when unmodified. I think the new 6. 7 is a good example, as that was a real "wait and see".

I have to say, I see some early power strokes and GM 6. 5's doing mundane vocational jobs, and while there are more failures than the "Big C" they're not too bad. We are our worst enemies sometimes.

 

[TCluff]

I Believe My Failures Were Because Of What I Have Put The Truck Through