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I need 2 wirring diagrams for 2 different trucks can u help?
I need 2 wirring diagrams for 2 different trucks can u help ? … read more
BrentR718
BrentR718
6 satisfied customers
I have cat C15 2005 angine,and I have low 10lbs of boost
I have cat C15 2005 angine,and I have low 10lbs of boost pressure,but my pyro temp.go over 1200 to 1400 degrees .are both symptoms releated … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,221 satisfied customers
2002 C15. 6NZ pushing coolant out of the overflow. Happened
2002 C15. 6NZ pushing coolant out of the overflow. Happened 5 months ago so I pulled head and only thing I found was a small split in head gasket fire ring on #6 cylinder. Replaced gasket and spacer p… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,221 satisfied customers
I have a 2000 year 6NZ C15 @ 550/1850 with 800,000 on out of
I have a 2000 year 6NZ C15 @ 550/1850 with 800,000 on out of frame rebuild. I am doing a ground up restoration on my 2001 Western Star, owned & operated for 16 years. I wanted to upgrade to C18 specs.… read more
Bradey V
Bradey V
Certificate
I have a question about C15 cat engine throttle position
I have a question about C15 cat engine throttle position sensors I'm wondering if they are interchangeable between a 6NZ and an mxs or sd … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,221 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
Can you give me a detailed description of how to test my
Can you give me a detailed description of how to test my fuel pressure on a c15 cat engine. 06 K.W. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,221 satisfied customers
Looking for Cat Man on this one. If I had a 2004 KW T-800
Hi. Looking for Cat Man on this one. If I had a 2004 KW T-800 with a C-13 in it, and I wanted to put a 2004 C15 (6NZ) Motor into the KW. What are the chances the ECM Plug on the OEM Side will connect?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,221 satisfied customers
I have a 2003 peterbilt 379x, C15, 6NZ. 18 speed, 3.70
I have a 2003 peterbilt 379x, C15, 6NZ. 18 speed, 3.70 diffs. Engine rebuilt (CAT Platinum) 16 months ago. Engine pops/stumbles under load. Stop truck at traffic light /slow to go around curve/ park o… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,221 satisfied customers
Why is my C15 cat loosing power on hills had engine
why is my C15 cat loosing power on hills had engine trobleshooted by cat found nothing wrong with motor, but still looses power up hill. Always ran great with lots of power… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,221 satisfied customers
I have a C15 6NZ no start. Getting fuel with pressure.
I have a C15 6NZ no start. Getting fuel with pressure. Checked with Cat ET and no codes. R&RAY primary and secondary engine speed timing sensors. Both were sized to wiring harness. Saved secondary wir… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,221 satisfied customers
I have a 2005 C15 cat its been running rough. I parked it
I have a 2005 C15 cat its been running rough. I parked it for a couple days and now it wont start. It does fire with either. I prime it and have fuel to filter but no fuel past filter … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,221 satisfied customers
I have a c15 acert and a 2001 c15 single turbo in a Pete can
I have a c15 acert and a 2001 c15 single turbo in a Pete can I swap them and what problems would I have… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,221 satisfied customers
I have a 6nz c15 cat in a 2002 western star. I loose prime
I have a 6nz c15 cat in a 2002 western star. I loose prime when my tanks are not full. I have changed the steel line from the transfer pump to the filter housing. Changed the filter housing, all fuel … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,221 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
10,221 satisfied customers
Hello - I replaced one injector in my Cat C15 6nz and now it idles rough but I am still ge
Hello - I replaced one injector in my Cat C15 6nz and now it idles rough but I am still getting 25 - 30 lbs manifold pressure and power is good. Also my air compressor has a blown head gasket does tha… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,221 satisfied customers
I have a 2003 Pete with a C-15 that the ecm ESN doesn't
I have a 2003 Pete with a C-15 that the ecm ESN doesn't match the stamp on the engine. How do i go about changing this? ecm ESN- MBN05367 engine ESN-6NZ20374. I would also like to know the max HP/ tor… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,221 satisfied customers
2006 international 9400i with Cat C15 (MXS83461) Have to bleed
2006 international 9400i with Cat C15 (MXS83461) Have to bleed fuel system just about every time to start. Runs great all day but burps and farts on start up if not bled.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,221 satisfied customers
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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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