SpookyWatcher
Active Member
Nobody is defending it in the thread.
The difference in reactions is you are in full spaz drama mode, and others are not.

Koolies are gonna Koolie...
Nobody is defending it in the thread.
The difference in reactions is you are in full spaz drama mode, and others are not.
Wait, what? Cast manifolds wear out?
No, they don't. Are you frigging kidding me?
Now hyperbolic attacks. Straight out of woke playbook. Nowhere did I see the OP "spaz in drama mode".
Koolies are gonna Koolie...
Uh.... Here's your mirror.You're talking to the wrong guy if you think I'm woke or using woke ********.
OP is straight up standing naked on his front lawn scrificing chickens, antelops, and panda bears while drinking ouzo spazzing out because he isn't getting the same lockstep reactions from every poster here. He may have seen more reasonable responses throughout if he didn't attack everyone who had a higher tolerance for vehicle issues.
100%. A properly designed part should not be exhibiting these failures. They need to either revisit the design, or use better raw materials for the castings.It's hard for a non moving part which should suffer from any erosion to "wear out".
Now put metal with defects in it through a bunch of heat cycles and it may break.
LaxDfns15 was over there with me on the Titan boards for many years. Cracked manifolds are a very real thing over there, similar to what seems like a common failure here of rear window frame cracks. If you had a Titan it was not a question of if your manifolds were going to crack, but when. I had two of them and both of them had cracked manifolds; the second one, which I had until I traded it in on the Ram and drove it up to 160k miles or so, got the first set replaced under warranty (barely, I was at like 78k miles) with the "redesigned" manifold that was nothing more than a small piece of metal welded between collectors 3 & 4, and both replacement manifolds eventually cracked. At least on the Ram it looks like the manifold is cast iron - on the Titan it was stamped steel! Maybe the manifold isn't built as sturdy on the Ram as it could/should be. That's part of owning anything these days; unless you design it and build it yourself, you have no idea how well it's built or who built it.@dn325ci I never said I was ok with it, just said it's more common than you think. Just because you've never experienced it doesn't mean it doesn't happen quite often.
I've never owned a Euro car solely from the horror stories I've heard from family members' vehicles. Mercedes, VW, BMW, you name it. Despite what you're saying, manifolds are an item that can and will wear out. Should they have failed at 60k miles? They shouldn't have, and I definitely agree with you on that. But you are part of a tiny subset of hundreds of thousands of 5th gen's that have been sold. Sh!t happens, man.
I love the people that get on here and scream because they have an issue with their truck. Do you expect a perfect, maintenance-free vehicle?
Again, an extreme response. Everyone knows nothing is ever 100%, so you belabor an undisputed point here and previously. The point was is should be very rare, and indeed it is in much of the automotive world. Here it is more prevalent. I don't accept for a moment it needs to be. It is easily solvable with proper design.I'm also an engineer by degree(s) and trade. Doesn't mean things don't fail. There is no manufacture process that is 100% perfect. Period. It's impossible. That's not hyperbole, that's fact. You all saying "A pRoPeR pArT sHuD b PeRfEcT" need to get a grip on reality. Real world the failure rate on manifolds is probably under 1%.
I said "wear out" to not overly complicate it, but I can say cast manifolds "will compress and contract with every heat cycle eventually leading to failure. Even a small amount of impurities can cause weak material properties, allowing micro fractures to occur, which will eventually lead to failure" but you know what? "Wear out" covers that just as easily.
That's so easy to say. So in a few batches of material out of thousands for the manifolds you get enough impurities to cause failures down the road. It's not caught at the manufacturer because the part is built correctly, and the sample testing passed. It's not caught at the factory because the manufacturer said it's good to go, so now you have potentially thousands of trucks with these bad manifolds. Please tell me how it's easily solvable to correct a failure rate that's so low. I'd love to hear it so we can implement it in our process at work.Again, an extreme response. Everyone knows nothing is ever 100%, so you belabor an undisputed point here and previously. The point was is should be very rare, and indeed it is in much of the automotive world. Here it is more prevalent. I don't accept for a moment it needs to be. It is easily solvable with proper design.
Easy. Cast iron as a material for casting is made in batches. You specify the proper cast iron for the job, as there are many classes and microstructures. You specify the inclusions your design will allow. Whenever a batch is made, you also pour a sample for quality assurance and check it. Some call this quality control. I'm available for hire. PM me. What's easy to say is "nothing is ever 100%". Lazy even. You've seen how many reports there are here and across the internet. Stop excusing the easy way out.That's so easy to say. So in a few batches of material out of thousands for the manifolds you get enough impurities to cause failures down the road. It's not caught at the manufacturer because the part is built correctly, and the sample testing passed. It's not caught at the factory because the manufacturer said it's good to go, so now you have potentially thousands of trucks with these bad manifolds. Please tell me how it's easily solvable to correct a failure rate that's so low. I'd love to hear it so we can implement it in our process at work.
This specific issue IS very rare, even in the Ram world. Which is why FCA didn't automatically cave and say "You know what, it's a prevalent issue, we'll fix it for free." You're on a forum where the predominant thing to do is 1. ask "What's the biggest tire I can fit on X truck?" and 2. complain about any and all issues you have with the truck. So of course you're going to hear about it more here than anywhere else.
Exactly, you specify the amount of inclusions. So if your cast iron isn't pure, you WILL have failures. You quality check that sample, which I talked about, and that sample checks out. Perfect. So out of a batch of 100 parts you sample 1 and it passes. If a different 2 parts of the 100 fail you're at 2% failure rate which is most likely high for a real world failure rate. You're acting like this wasn't done and every manifold is failing. Please give me an example of a real world item that is 100% infallible every batch.Easy. Cast iron as a material for casting is made in batches. You specify the proper cast iron for the job, as there are many classes and microstructures. You specify the inclusions your design will allow. Whenever a batch is made, you also pour a sample for quality assurance and check it. Some call this quality control. I'm available for hire. PM me. What's easy to say is "nothing is ever 100%". Lazy even. You've seen how many reports there are here and across the internet. Stop excusing the easy way out.
OK, it's obvious to me now that you have no idea what you're talking about. Good casting design and manufacturing processes solves this. 2% is appalling and never should make it to the field. By your logic, you'd also be fine with 2% of engine blocks failing, 2% of head castings failing, 2% of crankshafts failing, 2% of every connecting rod failing, 2% of camshafts failing. By the time you stack up all your 2% probabilities, there is 100% probability of a major problem. If there is 2% fallout in the process, you make darn sure you catch it at the factory and not in the field. It's expensive for everybody in the field. Please tell me you're not working in a manufacturing process. If you are, please tell me for what product so I can be sure not to buy one. Plus your back to your bizarre 100% point which no high school statistics student ever disagreed with. My grandfather often told me to never argue with someone you have to educate first - I should have listened.Exactly, you specify the amount of inclusions. So if your cast iron isn't pure, you WILL have failures. You quality check that sample, which I talked about, and that sample checks out. Perfect. So out of a batch of 100 parts you sample 1 and it passes. If a different 2 parts of the 100 fail you're at 2% failure rate which is most likely high for a real world failure rate. You're acting like this wasn't done and every manifold is failing. Please give me an example of a real world item that is 100% infallible every batch.
So are you allowed to have impurities? If not, that means the cost of this truck is above the point where people will buy them. There's a point at which the largest risk in a design process is the product not being bought. That's why certain small failure amounts are allowed.
Yep, listen to your grandfather. So many comments in this thread alone, including you, expecting perfect parts every time. What that's saying about insanity?OK, it's obvious to me now that you have no idea what you're talking about. Good casting design and manufacturing processes solves this. 2% is appalling and never should make it to the field. By your logic, you'd also be fine with 2% of engine blocks failing, 2% of head castings failing, 2% of crankshafts failing, 2% of every connecting rod failing, 2% of camshafts failing. By the time you stack up all your 2% probabilities, there is 100% probability of a major problem. If there is 2% fallout in the process, you make darn sure you catch it at the factory and not in the field. It's expensive for everybody in the field. Please tell me you're not working in a manufacturing process. If you are, please tell me for what product so I can be sure not to buy one. Plus your back to your bizarre 100% point which no high school statistics student ever disagreed with. My grandfather often told me to never argue with someone you have to educate first - I should have listened.
You were right. Cheers.Now hyperbolic attacks. Straight out of woke playbook. Nowhere did I see the OP "spaz in drama mode". Get a freaking grip
Koolies are gonna Koolie...
Yup. They certainly are predictable. Comical... No.. Pathetic.You were right. Cheers.
100%. A properly designed part should not be exhibiting these failures. They need to either revisit the design, or use better raw materials for the castings.
You don't think this is a rare occurrence? 1.5MM+ trucks not to mention cars and this few of failures? It is rare and a proper design, if it were an improper design you'd have way more failures than what's being reported. Its a cast exhaust manifold, not a cylinder head or even a rocker armAgain, an extreme response. Everyone knows nothing is ever 100%, so you belabor an undisputed point here and previously. The point was is should be very rare, and indeed it is in much of the automotive world. Here it is more prevalent. I don't accept for a moment it needs to be. It is easily solvable with proper design.
Once again... They just can't help themselves.
Here we go with hyperbolic absurdity arguement. Straight up predictable. No one anywhere has said they expect a perfect truck. As you stated EVERY truck/car has it's idiosyncrasies. And it's not absurd to point out deficiencies in ANY vehicle in an effort to inform and hope they get sorted. It's in the best interest of the maker and the customer AND the potential buyer.
Your Kooolieness, is in my opinion, Detrimental.
p.s. I Love my truck! I recommend it to Everyone.