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Related Medium and Heavy Trucks Questions
If pyrometor gage wrong will 2006 c15 cat derate and shut
If pyrometor gage wrong will 2006 c15 cat derate and shut down if it gets to hot? Water and oil temp gages don't run hot just don't want to hurt motor until I get to pete place to get gage… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
533 satisfied customers
I have a 2000 w9 with a 2006 c15 and a check engine light.
Second opinion] I have a 2000 w9 with a 2006 c15 and a check engine light. It is derating. The flash code 258.… read more
Joe Green
Joe Green
14 satisfied customers
Can I shut off the derate mode on a C15 cat? MSX34266. Have
Yes have cat ET no codes but still derates checked all sensor and wires even put on test ecm … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,293 satisfied customers
I have a C15 CAT Acert. When the temp get up to 160 at a
I have a C15 CAT Acert. When the temp get up to 160 at a idle. When the oil pressures get down to 25 lbs the oil pressure light come on and it goes into to a de rate mode.… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
13,571 satisfied customers
I have a 06 KW t2000 with a cat c15 twin turbo and im having
Hi I have a 06 KW t2000 with a cat c15 twin turbo and im having this code sid 030 and im losing power. If you guys could help me telling me what it means a will apreciate it. Thanks in advance … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,563 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
I have a 2004 Peterbilt 379 with a C15 Cat engine. When in
I have a 2004 Peterbilt 379 with a C15 Cat engine. When in neutral it will rev up fine but when going down the road it won't rev past 1700rpm. At times it will run great but after a while the trouble … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,293 satisfied customers
Check engine light is flashing. All fluids check out ok. The
Check engine light is flashing. All fluids check out ok. The light is flashing a 95 code. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,293 satisfied customers
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
1,824 satisfied customers
Mbn c15 no power fuel psi at wot 90 psi at idle 80 psi gauge
Mbn c15 no power fuel psi at wot 90 psi at idle 80 psi gauge bounces … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,293 satisfied customers
I have a 2006 Freightliner Columbia with Cat C15 engine with
I have a 2006 Freightliner Columbia with Cat C15 engine with an amber check engine light flashing intermittently. I'm showing flash code 4-7. I don't know if it is related but also showing Fault 01 EC… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,293 satisfied customers
I've C15 BXS with VVAs put to sleep, and tuned to 650hp. I
I've C15 BXS with VVAs put to sleep, and tuned to 650hp. I has an derate issue when cold, with a load it will only build 35 psi boost, and feels draggy, and after you've driven bout 5-10 minutes it st… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,293 satisfied customers
Cat Man. I have a 2001 Freightliner with a Cat C15 Serial
Hi Cat Man. I have a 2001 Freightliner with a Cat C15 Serial #1LW08732. I have a flash code of 27? and the truck is derating. Can you tell me what this code is and where to start. Thanks again. Doug… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,293 satisfied customers
I have a 2002 KW with 2001 c15 engine.. Engine light flashed
I have a 2002 KW with 2001 c15 engine.. Engine light flashed 5 times blank 5 times wthat does this code mean? … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,293 satisfied customers
C15 cat acert question. NXS serial number. Is it possible to
C15 cat acert question. NXS serial number. Is it possible to turn off the derate function while the check engine light is on? A friend has a MXS and was able to.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,293 satisfied customers
I have a C15 Cat engine showing error code CGI gas temperature....
I have a C15 Cat engine showing error code CGI gas temperature.... it has not derated the engine. The light comes and goes... does not stay on all the time. Thanks! Peter… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,293 satisfied customers
Hello I have a 2003 kenworth with a C15 engine the serial
Hello I have a 2003 kenworth with a C15 engine the serial number start with MBN. Its not the 6nz. Had a outframe done on it bout 80 000 miles ago. After that every once in awhile it derates the power … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,293 satisfied customers
hi Have a n14 Celect, No Check Engine" light comes on but
hi Have a n14 Celect, No 'Check Engine" light comes on but the 'Derate Engine' light flashes on and shuts down the engine. doesn't happen all the time has anyone got any thoughts. All fluid levels are… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,824 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

13,571 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,293 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

4,563 satisfied customers

worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

Jeremy

Certified Truck/Bus Technician

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ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

cumminsdr

cumminsdr

Mechanic

1,824 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

1,806 satisfied customers

Technician turned service manager on multiple lines of trucks and engines, used in industry.

Chris (aka-Moose)

Chris (aka-Moose)

Technician

462 satisfied customers

24 years of experience diagnosing & repairing

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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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