Cummins ISX CM871 Technical discussion

RAWZE,

Man I have read nearly everyone of your post and held off on asking you until even downloaded your book and read it.


I was an operations manager for a Ready Mix company for 10 years before recently getting burnt out and saying I had enough. I did my research and thought I had my I's dotted and T's crossed. Took the fleet manager that I had worked with for close to 15 years shopping with me even. I checked out a bunch of trucks and narrowed it down to two before doing DYNO and oil samples on those two. I leased a 2011 Prostar with a 450 ISX and have found like so many others even on a 20k oil interval my oil temp will climb to around 225 and oil pressure will start to drop some about 30psi at 1450 rpm around 12 to 13k into a service. I have been changing filter and doing samples and carbon is elevated but not way off the norm. Talking to my local Cummins this was explained away with the motor being total EGR rather the DEF. My guy said I should think about an external oil filter system and suggested Gulf Coast's system.


My local Cummins shop left a bad taste in my mouth. I wont be spending any money there. So I have two questions if you will. Having read of your experience with lubes and oils do you have any background knowledge on Gulf Coast's system? Second, I am at about 360k and growing daily but am still covered under Cummins warranty, any knowledge of what if anything installing this would do to the existing warranty?

 

Just for anyones FYI...After doing all in Rawzes videos and changing out
all the sensors, everything was good for like a day. Finally trying to get up the hill w/b on 40 into Alburquerque,:i lost power and barely got to 15 mph pulling 40k lbs of yams. I struggled into the city and parked right outside of Peterbilt of Alburquerque. After the techs checked everything out, i had like 2000 error codes...lol, all mostly the same thing. Everything dpf, turbo, egr related.

They opened up the turbo and it was almost welded open...crazy. I tried to force ot closed myself. Yup the turbo. So although I know many shops dontvwant to do the whole egr tune up thing, I guess there are some who are just there to tell you whata wrong.

Well $4980 bucks later im back on the road. Thank God I had just enough to pay. Kept a steady 62 mph up the hill amd out of Albuquerque.

 

Rawze is no longer on this forum

 

He was on the the other forum that has a similar name, but his thread over there hasn't taken off like it did here.

 

How any miles were on the original turbo?

 

Almost 500k..

 

That's time to change it anyway.

 

Yeah..was wishing not..lol..

but its done..one less thing to worry about..

 

thats complicated job. Its not smartphone firmware updating. Sorry, you did something wrong or did NOT notice something. If you had exhaust temp sensor on turbo than you would mention dangerous temperature rise, etc. I don't blame you, just debating.

 

No..everything was fine..nothing out of the ordinary..all until a few days before..i started losing power..found Rawzes post...did the whole egr tune up..worked for a day then got stuck in NM...I wish there was more to it...engine light only went on at the time I startd losing power...sooo it was quick but painful..