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Related Medium and Heavy Trucks Questions
No cruise on 2005 peterbilt with c15, have et, cruise on/off
no cruise on 2005 peterbilt with c15, have et, cruise on/off works, clutch and brake switch both show off, but on et where it says cruise mode, it says not activated… read more
NicholasM1019
NicholasM1019
Diesel Technician
Vocational, Technical or Trade School
8 satisfied customers
No engine brake unless cruise is set to a certain speed and
No engine brake unless cruise is set to a certain speed and I get rolling 3-4mph past set point … read more
NicholasM1019
NicholasM1019
Diesel Technician
Vocational, Technical or Trade School
8 satisfied customers
I have a 379 Pete, the jake does not work. I have no power
I have a 379 Pete, the jake does not work. I have no power to the jake brake switch. Is this my problem?? … read more
NicholasM1019
NicholasM1019
Diesel Technician
Vocational, Technical or Trade School
8 satisfied customers
I did a engine swap on a 1994 Peterbilt 379 that had a model
I did a engine swap on a 1994 Peterbilt 379 that had a B model cat, I put a 3406e (6ts04777) I'm trying to hook up jakes and cruise but the wiring diagram doesn't explain what's 12volt power and groun… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,307 satisfied customers
2003 peterbilt 378 vin 1CP-FDBOX-6-4D808339 cat C 15 MBN
2003 peterbilt 378 vin 1CP-FDBOX-6-4D808339 cat C 15 MBN jakes,cruise control quit working I'm looking for the inputs to J2 from cab switches test good & controlling ground I would like pin numbers at… read more
NicholasM1019
NicholasM1019
Diesel Technician
Vocational, Technical or Trade School
8 satisfied customers
On a 2005 Peterbilt 379 with cat ACERT C 15 engine why did
On a 2005 Peterbilt 379 with cat ACERT C 15 engine why did my Jakes only work in low and in the middle setting they do nothing and on the high setting I only get the low jakes… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,245 satisfied customers
I have an 2006 c15 and my jakes arent working. the code my
hi i have an 2006 c15 and my jakes arent working. the code my scanner pulls up is pid: 122 Active Retarter solenoid med/hi short circuit … read more
Bradey V
Bradey V
Certificate
This is ben from Onsite Diesel repair in Acme Alberta. one
Hi there this is ben from Onsite Diesel repair in Acme Alberta. one of our customers is complaining of a vibration under load on his gravel truck. It has a 6NZ C15 cat in it . he bought the truck with… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
02 pete cat c-15 6nz check engine light on flashed 8 now
02 pete cat c-15 6nz check engine light on flashed 8 now wont flash any codes cat et says oil pres sensor voltage high changed sensor twice changed grey wire from sensor to ecm changed ecm did same th… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,245 satisfied customers
The fan doesnt come on with jakes or when engine temp is hot
the fan doesnt come on with jakes or when engine temp is hot in our 1998 peterbilt 378 with a 3406e … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,245 satisfied customers
Cruise control has no de cellorat operation on the toggle
Cruise control has no de cellorat operation on the toggle switch? Accelerate works but won't blank out speed when you bump clutch pedal?… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Cruise not working, 2001 379 peterbilt cat 6nz, traced wires
traced wires and switches checked ecm found ecm has service brake ON new switch also found wire 281 has power not sure why … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,245 satisfied customers
Have a 2004 peterbilt 379 with CAT C 15 engine. There is a
have a 2004 peterbilt 379 with CAT C 15 engine. There is a broken wire in ECM harness shorting to ground. Having difficulty finding the other end. Need a wiring diagram for power from battery box to E… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I'm switching a 99 peterbilt from Detroit ddec3 to cat 3406e
I'm switching a 99 peterbilt from Detroit ddec3 to cat 3406e 40 pin. What do I need for the cab. I have the harness from the ecm to the firewall from a donor truck. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
1997 357 ecm won't turn the fan on but manual switch will.i
1997 357 ecm won't turn the fan on but manual switch will.i go into et and i can make it active and inactive but air solenoid doesn't get the signal.thinking there must be a relay some where.any thoug… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
Mr. Cat man I have 07 kenworth with an NXS engine. My jakes
Mr. Cat man I have 07 kenworth with an NXS engine. My jakes brakes seem to only work on stage 1. They don't work at all on stage 2 and just barely work on stage 3. Can you give me any insight on this … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,245 satisfied customers
I have a 2004 379 peterbilt with a cat c-15 engine and it has
I have a 2004 379 peterbilt with a cat c-15 engine and it has no throttle response. It just idles at 700 rpm. I replaced the switch under the throttle pedal, the cam position sensor and the crank posi… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,245 satisfied customers
I have a 2000 Peterbilt 379 with a c-15 cat. Has no throttle
I have a 2000 Peterbilt 379 with a c-15 cat. Has no throttle responce via pedal or cruise switch. Hooked up ET and no active, inactive or logged event codes. Can watch the accel position through ET an… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,245 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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