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I have a c15 NXS27430 with iva and single turbo conversion.
I have a c15 NXS27430 with iva and single turbo conversion. It derates after jakes are used. Usually runs 38-40 psi boost then drops to 20 once jake brake is used. If you stop and restart engine it'll… read more
Justin
Justin
Diesel Technician
Vocational, Technical or Trade School
8 satisfied customers
I have a 05 freightliner m2 106 with a c7 catapillar engine
Hi I have a 05 freightliner m2 106 with a c7 catapillar engine and lately the truck has not been accelerating like it use too, it revs up to about 1500 rpm and then it's like it loses power briefly ar… read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
82 satisfied customers
2008 C9 trouble code 641-12. Its a fire truck. Can't find
yes can't find info cat replaced turbo last year similar issue less than 600 miles since repaired last year … read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,325 satisfied customers
I get a intave valve starting system status flag only when
I get a intave valve starting system status flag only when going up hill and I get a slight derate … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I converted my c15 mxs to a single turbo. got the program to
I converted my c15 mxs to a single turbo. got the program to delete my IVA's. Everything worked well for months then out of nowhere the engine started to derate me whenever I use my eng brake. If I st… read more
Bradey V
Bradey V
Certificate
Dr. Cummins, I have an ISX that is "derating" when the check
Dr. Cummins, I have an ISX that is "derating" when the check engine light comes and and a warning beeper goes off. This truck is off site I'm just wondering at this point what will cause this problem.… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,886 satisfied customers
I have a C-7 in a dyno, at !00% throttle & load around 320
I have a C-7 in a dyno, at !00% throttle & load around 320 hp. while monitoring boost pressure I noticed that the readingbounces around very rapidly 21-29 psi, … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I have a Cat C-13 ESN: KCB62827 This unit has fault codes
Hello I have a Cat C-13 ESN: KCB62827 This unit has fault codes 173-0 284-6 dose any one have the code description and trouble tree. also sensor locations.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I have a Cat C9 ESN C9S01556. this unit had a fault code
Hello I have a Cat C9 ESN C9S01556. this unit had a fault code for low boost pressure that keeps coming back. It has 200 counts. Aprox 1300 miles ago I replaced the boost pressure sensor, for the same… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I have a Cat C-9 ESN SAP96554 This unit came in with low
Hello I have a Cat C-9 ESN SAP96554 This unit came in with low power, in the status flag window. it says turbo protection derate Active. dose any one have any info on why this is. or what could cause … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
2011 Paccar PX-8 we are having very low power on this
2011 Paccar PX-8 we are having very low power on this engine. we were told the egr could bleed off turbo pressure but we check and the EGR is clean and moving freely. This engine is an off road engine… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
Hallo Cat man, We have some problems with a C9 engine. It
Hallo Cat man, We have some problems with a C9 engine. It runs perfectly when no load but not when putting some load ( a turbine ) when engine is at 1800 RPM. The RPM drops a lot when under load. When… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
hello I have a Cat C-9 ESN 9DG05826 with a fault code 102-7
hello I have a Cat C-9 ESN 9DG05826 with a fault code 102-7 turbo boost not responding. Also it has a status flag that says turbo protection derate active . dose anyone have any info on this?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I have a code aftertreatment SCR operator inducement data
I have a code aftertreatment SCR operator inducement data valid but above normal operating range. I tried clicking on this code but no explanation on INSITE. please help us we are stuck… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,886 satisfied customers
Have a 2004 Pete. C7 cat . No run. status flag no engine speed.
Have a 2004 Pete. C7 cat . No run. status flag no engine speed. It has engine speed rpm on data screen. After spinning a while it sets all 6 injectors current fault… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I am working on a Ford L9000 with a Cummins M11. Engine is
I am working on a Ford L9000 with a Cummins M11. Engine is loosing power, more noticeable under a load, and missing. Hooked up pro-link and have two active codes. pid91 fmi2 with 16 occurrences and pi… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,886 satisfied customers
Hello I have a Cat C-9 ESN. C9S01556 with a code 3473-31 and
Hello I have a Cat C-9 ESN. C9S01556 with a code 3473-31 and 3774-31 active I have check over the system and do not see any defects. I ran the transformer spark test. and check all filter fittings. I … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
2005 Peterbilt 335 with a C7 Caterpillar 250hp. Low power
2005 Peterbilt 335 with a C7 Caterpillar 250hp. Low power afer about 5 minutes of running unloaded. First 5 minutes it has plenty of power, starts to sputter a bit and then has very low power. In the … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
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Daniel Wilson

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cumminsdr

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Chris (aka-Moose)

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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