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I have an Cummins ISL 9 that is going into regen all the

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time. Removed the dpf and...
I have an Cummins ISL 9 that is going into regen all the time. Removed the dpf and doc. Had both cleaned. installed, reset and performed regen. Still no luck. same problem.
Submitted: 1 year ago.Category: Medium and Heavy Trucks
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8/16/2016
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago
roybelding
roybelding, Shop Foreman Freightliner trucks
Category: Medium and Heavy Trucks
Satisfied Customers: 6,329
Experience: Shop Froeman for Freightliner Trucks
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good evening my name is ***** ***** I will assist

is there any codes??

do you have the insite program to monitor temps and knock sensors??

does it complete regen???

Roy

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Customer reply replied 1 year ago
Hi Roy,
no codes.
yes, we have insite
yes, it did complete one regen. system shows normal soot levels.
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

what were the temps???

what were the knock sensors reading both inlet and outlet???

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Customer reply replied 1 year ago
dpf inlet and outlet both temp were over 1050. they showed a differance of only 10 deg.knock sensors? did you mean pressure sensors?
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

no, knock sensors. inlet and outlet they register ppm of exhaust

if the dpf is clean the inlet pressure for the dpf should be around .5 or less

Roy

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Customer reply replied 1 year ago
ok, on the nox sensors. i guess i missed that. just an fyi, the engine is a 2013. im going to run the eng now to get that reading. please give me a min.
Customer reply replied 1 year ago
i also just cleaned the dpf.
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

ok

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Customer reply replied 1 year ago
I can't find a pid for a nox sensor. I'm dubble checking now.
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

advanced ecm data

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Customer reply replied 1 year ago
Ok tks. Give me a second
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

ok

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Customer reply replied 1 year ago
No data stream in there. Just different filter maintenance and resets. Injector calibration. Don't see any nox pids.
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

trying to think. it is there it is on the same screen as the temps and the inlet pressure for dpf

Roy

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Customer reply replied 1 year ago
Ok. Data monitor / longer? Checking again.
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

ok

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Customer reply replied 1 year ago
I have looked for a nox or anything showing in ppm. Can't find anything.
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

its there

if the temps are good, the inlet pressure is good, if the knock sensors were an issue it would code, if the def injector was an issue it would code as well

the only thing left is the dpf. I never have them cleaned as they barely get 50

50% cleaned so they are already 50% clogged from the start

Roy

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Customer reply replied 1 year ago
What should the pressure sensors read?
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

as I stated before, the inlet should be around .5 lbs outlet close to 0

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Customer reply replied 1 year ago
Is that at idle? And at what rpm should we check for a set pressure.
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

during re gen

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Customer reply replied 1 year ago
Ok on the regen. Just an FYI I had the dpf and doc cleaned by Cummins.
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

we used too as well. they are the ones who told us about the cleaning process

Roy

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Customer reply replied 1 year ago
I get that. Why is the soot load reading normal and the system going into regen?
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

what is normal??? what reading do you see

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Customer reply replied 1 year ago
the pid in the data loger says normal, no numbers. i have seen it say slightly above normal lowest level.
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

ok, I still think the dpf is your issue

Roy

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Customer reply replied 1 year ago
ok, sigh. have yoou seen this and did it change when you installed a new dpf?
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

yes, I have many times. and yes, it took care of the issue as well.

Roy

please dont forget to rate me as it is the only way I get paid for my efforts

Roy

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Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

please dont forget to rate me as it is the only way I get paid for my efforts

Roy

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Customer reply replied 1 year ago
No problem. I've pulled the dpf. I think it might be cracked internally. I'll let you know. I may need more help tomorrow.
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

ok

please dont forget to rate me as it is the only way I get paid for my efforts

Roy

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Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

please dont forget to rate me as it is the only way I get paid for my efforts

Roy

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Customer reply replied 1 year ago
Installed a new dpf. Reset no luck. Still calling for regeneration all the time. Any other ideas?
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

sorry, traveling all over

are there any codes set???

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Customer reply replied 1 year ago
no codes.
Technician: roybelding, Shop Foreman Freightliner trucks replied 1 year ago

Sorry, been ill for past week.

how long does it take to perform a re gen???

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roybelding
roybelding
roybelding, Shop Foreman Freightliner trucks
Category: Medium and Heavy Trucks
Satisfied Customers: 6,329
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