Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

Connect one-on-one with {0} who will answer your question

This answer was rated:

2004 Peterbilt CAT C15 Engine serial NO. MBN16913 crank no…

2004 Peterbilt CAT C15 Engine...
2004 Peterbilt CAT C15 Engine serial NO. MBN16913 crank no start, no tach movement, 60psi fuel pressure while cranking, i have key activated power at pin 70,52,53 of the p1 ECM connector and ground at pins 63,65,67,
Show More
Show Less
Ask Your Own Medium and Heavy Trucks Question
Answered in 5 minutes by:
11/6/2018
Technician: Cat Man, Cat Engine Expert replied 3 years ago
Cat Man
Cat Man, Cat Engine Expert
Category: Medium and Heavy Trucks
Satisfied Customers: 10,344
Experience: I am ASE Master Truck Certified.
Verified
Thanks for asking you question. I will try and help you out.
Does the yellow check engine light come on when the key is turned to the on position?
Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 3 years ago
no it does not
Technician: Cat Man, Cat Engine Expert replied 3 years ago
Thanks for the information.If the yellow check engine light does not come on when the key is turned to the on position and the engine will not start, there are only 2 things that can cause this.The first and most common is the engine ECM is not getting the correct power and ground to function. The ECM should have power on pins 52, 53, and 70 of the rear most ECM connector. This is the truck side harness connector. 70 is the key switch wire. The grounds are on pins 65 and 67. You can remove the connector and check for power on these pins. If you do not have power on these pins, you most likely have a blown fuse in the electrical system. I would check all fuses first.If you do have correct power and ground to the ECM, you most likely have a failed ECM. I have seen this many times over the years. To confirm the ECM is bad, you would need to install a known good ECM on the engine or you can take the ECM to the dealer to be tested. Unfortunately the ECM cannot be repaired. Replacement is the only option. I am sorry. I wish I had better news.Please reply back if you need more help or have more questions. I am happy to assist.
Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 3 years ago
i have the correct power and grounds to those pins
Technician: Cat Man, Cat Engine Expert replied 3 years ago
Thanks for the information.
If you have power and ground and a nonstart without a cel. I suspect the ecm has failed. I see this a lot.
The yellow check engine light should come on each time the key is turned to the on position.
To verify. I like to install a known good ecm.
Please reply back if you need more help. I am happy to assist.
Cat Man
Cat Man, Cat Engine Expert
Category: Medium and Heavy Trucks
Satisfied Customers: 10,344
Experience: I am ASE Master Truck Certified.
Verified
Cat Man and 87 other Medium and Heavy Trucks Specialists are ready to help you
Ask your own question now
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a technicianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Cat Man Your Own Question
Cat Man
Cat Man
Cat Man, Cat Engine Expert
Category: Medium and Heavy Trucks
Satisfied Customers: 10,344
10,344 Satisfied Customers
Experience: I am ASE Master Truck Certified.

Cat Man is online now

Related Medium and Heavy Trucks Questions
C15 reads no eng, wont fire,gives code 140. power at pins 70
c15 reads no eng, wont fire,gives code 140. power at pins 70 52 53 and i thunk 55, but also has power at pins 63 65 67 and 69 … read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
57 satisfied customers
I have a 2005 peterbilt that originally had an isx. But
I have a 2005 peterbilt that originally had an isx. But previous owner converted it to a 6nz. It has had a die/no start issues for a few weeks but mother that he left the driver stranded. There is no … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
I have a 2006 Peterbilt 387 with a cat c15 acert. Will crank
I have a 2006 Peterbilt 387 with a cat c15 acert. Will crank but will not start. Will start with Starter fluid. Found the 20 amp fuse coming off batteries. But the wire is broken under the frame. Can … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
2004 Kenworth with a C15 cat single turbo MBN20934. cranks
2004 Kenworth with a C15 cat single turbo MBN20934. cranks but wont' start. Changed the fuel pump, checked fuel pressure, 95psi. Checked the power to the ECM, pin 70 12V 63/65/67 grounds show good. co… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
My engine fan will not turn on. Either with the manual
My engine fan will not turn on. Either with the manual switch or just letting the ecm do it by water temp. I've replaced the fan air solenoid and it still will not engage. Unless I cut the wires to th… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
2002 379 pete c15 6nz cat .engine will not start without
2002 379 pete c15 6nz cat .engine will not start without either . has new fuel pump new injectors new cam and crank sensors new engine wiring harness new check valves new filter housing, new ecm. Has … read more
Edward Haniewski
Edward Haniewski
General Studies/Automotive
1 satisfied customers
2007 pete 379 c15 Acert cat mxs99184 serial number. 2007
2007 pete 379 c15 Acert cat mxs99184 serial number. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
2006 International 9400i, CAT C15 Acert. Turned truck off
2006 International 9400i, CAT C15 Acert. Turned truck off last night with no issues, cranks over but no start this morning. When cranking no tach signal, no oil pressure signal, no water temp signal. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
2005 KW W900 W/C15; NO START. Cranking is not an issue.
2005 KW W900 W/C15; NO START. Cranking is not an issue. Engine serial number MXS07943. Fuel pressure is 65 during crank with new filters, pressure regulator etc... There is no engine warning lamp, no … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
My 2005 Pete with a C15 won't start. I get no clicking in my
My 2005 Pete with a C15 won't start. I get no clicking in my valve covers for the fuel rail system. Ecm checks out good. I have fuel pressure after cranking in the return behind filter. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I have a '99 Peterbilt with a 3406 cat, just wouldn't start
I have a '99 Peterbilt with a 3406 cat, just wouldn't start one day. Will run on ether. Put a new fuel pump on because I thought the pressure may be low, didn't help. I'm trying to test the cam sensor… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Cat Man, I have a 2003 Peterbilt with a CAT C-15 MBN16293,
Hi Cat Man, I have a 2003 Peterbilt with a CAT C-15 MBN16293, the engine will not start. When I turn on the ignition none of the dummy lights come on including the check engine light. The truck igniti… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I have a 2005 Chevy C7500 with a Cat C7 ACERT engine number
Hi, I have a 2005 Chevy C7500 with a Cat C7 ACERT engine number KAL49218. Crank no start. I have fuel pressure. 15 psi cranking. high pressure oil is at 2300 psi cranking according to the scanner. whe… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
When drivers door is opened and closed it will shut off. Do
When drivers door is opened and closed it will shut off . Do you have any ideas of what the problem would be. It is a 387 Peterbilt 2005 has a c15 Cat motor.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I have 2003 peterbilt 378 with a c15 cat,unit turns over but
i have 2003 peterbilt 378 with a c15 cat,unit turns over but will not start,put ecm on a different truck,ecm ok,checked all power supply wires are ok i have a ck engine light but can not ,get into ecm… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Have a c15 2007 same deal fuel delivery is good will crank
Have a c15 2007 same deal fuel delivery is good will crank over just will not fire up owner drove truck to location shut it off did his farming and truck will not crank up now… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
i am working on a cat 3176 in a 1996 pete 357. i replaced a
i am working on a cat 3176 in a 1996 pete 357. i replaced a cracked timing housing and now engine wont start... I checked the voltage of three fuses inside dash (i'm assuming they are the ecm fuses) i… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
jim here have 07 cat c15 acert peterbilt tractor manual switch
jim here have 07 cat c15 acert peterbilt tractor manual switch for cooling fan not working.fan works with a/c but not manual.power at switch and coolant sensor new air solinod… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
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.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Daniel Wilson

Daniel Wilson

6,062 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

10,344 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

5,115 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,756 satisfied customers

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

Curtis B.

Curtis B.

Technician

1,947 satisfied customers

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

cumminsdr

cumminsdr

Mechanic

1,886 satisfied customers

All types of Cummins applications

Chris (aka-Moose)

Chris (aka-Moose)

Technician

641 satisfied customers

24 years of experience diagnosing & repairing

< Previous | Next >

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.

Show MoreShow Less

Ask Your Question

x