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  #11  
Old 08-23-2019, 06:34 AM
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Quote:
Originally Posted by CTC DEEZUL View Post
K. Talk to me after your fuel system fails or bottom end starts squealing!
I don't work on trucks day in and day out like you do so If I'm being dumb here feel free to roast me. I am very familiar with the earlier 6.7 trucks having a lot more of the fuel system failures, I think a lot of it was or is due to poor quality fuel being put in the tanks in general and also lack of proper maintenance.

Where does the bottom end squealing come into play? You talking like crank walk and stuff like that or what?
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  #12  
Old 08-23-2019, 08:24 AM
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Quote:
Originally Posted by Black AOD View Post
I don't work on trucks day in and day out like you do so If I'm being dumb here feel free to roast me. I am very familiar with the earlier 6.7 trucks having a lot more of the fuel system failures, I think a lot of it was or is due to poor quality fuel being put in the tanks in general and also lack of proper maintenance.

Where does the bottom end squealing come into play? You talking like crank walk and stuff like that or what?
That's kinda where im at too. I put 132k on my 12. Stock everything but dereet tuning and drove hard every day.. Most everyone else says the stock fuel pump is still more reliable and can hold pressure fine with some mods over the air dog or fass.. first i have heard of bottom end squealing..

I got my 15 with 109k on it so i cant say what happened prior to me owning it... i have 133k on it now.

But then again, i have put LE full torque additive in every single tank and use LE 8854 5w40 oil every change too..

When i got my 15 truck in January, yes i know some will say winter fuel but it never mattered in my 12 for mileage, i was getting the best of 14.2mpg on the highway. I get 18 regularly now on tge highway and 20ish on the 55mph roads....

live life full throttle
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  #13  
Old 08-25-2019, 12:39 PM
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My 2012 has 245k on it and never had a HP pump fail, or issues with the LPFP for that matter. I typically go 12-15k on oil changes using Lucas oil and Amsoil bypass for extra filtration, analysis come back fine every time. Around 30% of my hours are idle hours, maybe more. Chris B @TSD got 576 on the dyno with S363 and stock fuel so I might have gotten lucky with a good build day.


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  #14  
Old 08-25-2019, 07:01 PM
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Basically all CP4s will fail, more earlier than others. Basic fuel filter changes cause air to enter system, even with being bled out. Its just a matter of time. Factor in a bad tank of fuel here and there, a gel event, etc. As far as I can tell there was not a single internal update to the pumps integrity in the later years. I cannot think of a single CP4 truck I've had, whether it be a pstroke, dmax, eco diesel that didn't have some sort of metallic flake in the fuel.

My advice is to send in a fuel sample or 2 a year along with your oil and check for metal. I tell all my fleets/customers that.

The metallic squeaks are definitely referring to the toasted mains. How or why I'm not convinced yet but I've had a few and so has everyone else I've talked to.

Last 6.7 engine took Ford 5 months to get me after a back order. Now I've been waiting on another for 1.5 months. Wonder why such a shortage of engines.

Doesn't matter as I'm going with Jasper(don't need any input on them, I know more than you do about the product their producing currently) from now on.

I'm not here to talk **** guys, I'm here to advise.
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  #15  
Old 08-25-2019, 09:24 PM
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Well if they're junk, it's news to me. There are so many 6.7's in this area, it's unreal. Anywhere from new to 300k miles and of all the people I've talked to, I only know if one that has needed an engine. Some of these trucks are so badly abused, I can't believe they run at all but yet they keep ticking away. Very rarely see them in the local diesel shops needing anything other than routine maintenance or the normal ******. I wish I could say the same about 6.4's. The 6.7 has a fantastic reputation here in the Midwest.
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  #16  
Old 08-26-2019, 08:39 AM
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Quote:
Originally Posted by CTC DEEZUL View Post
Basically all CP4s will fail, more earlier than others. Basic fuel filter changes cause air to enter system, even with being bled out. Its just a matter of time. Factor in a bad tank of fuel here and there, a gel event, etc. As far as I can tell there was not a single internal update to the pumps integrity in the later years. I cannot think of a single CP4 truck I've had, whether it be a pstroke, dmax, eco diesel that didn't have some sort of metallic flake in the fuel.

My advice is to send in a fuel sample or 2 a year along with your oil and check for metal. I tell all my fleets/customers that.

The metallic squeaks are definitely referring to the toasted mains. How or why I'm not convinced yet but I've had a few and so has everyone else I've talked to.

Last 6.7 engine took Ford 5 months to get me after a back order. Now I've been waiting on another for 1.5 months. Wonder why such a shortage of engines.

Doesn't matter as I'm going with Jasper(don't need any input on them, I know more than you do about the product their producing currently) from now on.

I'm not here to talk **** guys, I'm here to advise.
We understand that you work on them way more than the rest. Not arguing. Just not common to hear about anything like that. Cheap oil and sh!t fuel i would say is the culprit.

live life full throttle
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00,f350,4x4,cc,drw. Sold... good bye ole girl. I will miss you
15,f350,4x4,cclb, not stock
god bless america and the farmer who feeds your fat ass
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