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I have a 2012 cxu613 mack with mp8 couple days ago engine
i have a 2012 cxu613 mack with mp8 couple days ago engine starts randomly killing when slowing down or stopping some times when just driving i also started loosing throttle pedal at random times resta… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,412 satisfied customers
SCR system fault 2013 CHU 613 pinnacle. MP8 505 hp 2013 Mack
SCR system fault 2013 CHU 613 pinnacle JA: What's the make/model/year of your truck? Engine type? Customer: MP8 505 hp 2013 Mack CHU 613 JA: Are you fixing your truck yourself? What have you tried so … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,412 satisfied customers
2014 Mack 2014 Mack pinnacle dump truck, 215k miles, MP8
2014 Mack 2014 Mack pinnacle dump truck, 215k miles, MP8 engine & 10 speed transmissionIt was converted to a dump truck around 150k miles.Dash assembly looks like the truck was originally outfitted wi… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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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
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Vocational, Technical or Trade School
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I have a 2000 w900L kenworth with a 2004 isx 475 the cruise
i have a 2000 w900L kenworth with a 2004 isx 475 the cruise control stopped working and i have a 10second delay in the jake both happen at the same time jake comes on after 10 seconds after you releas… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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I had a fan belt break on my 2008 Mack CHU613 Pinnacle and
I had a fan belt break on my 2008 Mack CHU613 Pinnacle and the connected for the fan side control clutch ripped off. I need to know how to rewire without buying the entire assembly. … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,412 satisfied customers
It has started leaking fuel back out of the head overnight.
It has started leaking fuel back out of the head overnight. It is losing its prime.I was going to replace the check valve on the return line but do not know where it is located. … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,412 satisfied customers
I have a Mack 2011 with mp8 it shakes badly when it reach
I have a Mack 2011 with mp8 it shakes badly when it reach above 50 I have change the fuel filter housing and still the same I have to gear down from 10 to 9 speed because the vibration is really bad what can be the possible problwm … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,412 satisfied customers
No cruise or jake. Vn 2007 d16. Fuses on center dash.
Fuses on center dash. Checked clutch switch and brake pedal … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
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I have a MP8 engine with an auto shift transmission, Iy=t
I have a MP8 engine with an auto shift transmission, Iy=t won't go into gear. from neutral. When i hit the brake pedal I get air from a small hose infront of the cab.A mechanic said it is the harness.… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,412 satisfied customers
2009 Mack CXU 613 with MP8 motor cooling fan remains on
2009 Mack CXU 613 with MP8 motor cooling fan remains on continuously and comes on with no power to the fan and runs when cold or hot and temp only reaches 135 F … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,412 satisfied customers
Fan clutch solenoid valve is constantly leaking air. At
Fan clutch solenoid valve is constantly leaking air. At first only when the key was the on or run position, but since changing the solenoid valve now it leaks constantly.… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,412 satisfied customers
690. Cruise control will not work. This truck is used in a
690. Cruise control will not work. This truck is used in a oil field application and the cruise control is used to idle the truck up and down during use of equipment on location. It has cruise control… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
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2006 western star 4900fa cruise control and engine brake quit
2006 western star 4900fa cruise control and engine brake quit after truck warms up. both work fine prior to warm up. looking for schematics and or theory of operation. vehicle has new clutch switch, s… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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Mr. Cat Man I have a cat C13 KCB27925. Im gettting a code
Mr. Cat Man I have a cat C13 KCB27925. Im gettting a code 231-12. Can you give me any insight on troubleshooting this code?… read more
Cat Man
Cat Man
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I have a 2005 freightliner Columbia vin #n45191. jakes and
I have a 2005 freightliner Columbia vin #n45191. jakes and cruise quit working. tested clutch switch and found the signal at the ecu. didn't know what pin to test for service brake. I tested all switc… read more
Travis A. Wells
Travis A. Wells
Truck Mechanic
Associates of Applied Science
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Have a 2011 Cascadia, cruise and jakes stop working. Then truck
Have a 2011 Cascadia, cruise and jakes stop working. Then truck derates 5 mph. Shut power switctch off then back on ,derate gone. But cruise and jake have only worked once in last 4 days..any thoughts… read more
Clayton
Clayton
Technician
Vocational, Technical or Trade Scho
627 satisfied customers
We have a 1995 Mack CH 613. The cruise control doesnt work.
We have a 1995 Mack CH 613. The cruise control doesn't work. Do you have a wiring diagram? Do you have a good way to trouble-shoot this? There is 12 v power to the speed up and speed down rocker switc… read more
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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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