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Mack cxu 613 won't crank. Check fuel filter warning came on,
Mack cxu 613 won't crank. Check fuel filter warning came on, so I had them changed. After starting the truck, it slowly died. After using primer and cranking the truck again, this time with foot on pe… read more
Mike Mcmillan
Mike Mcmillan
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I forgot my cab light on overnight in my 2015 mack cxu. It
Hello. I forgot my cab light on overnight in my 2015 mack cxu. It drained my 7yr old batteries tremendously. I couldn't start the vehicle without getting a jump several times. I replaced the batteries… read more
Mike Mcmillan
Mike Mcmillan
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Losing prime after turning truck off. Mack chu613 2008.
Hi exhaust light on between(###) ###-####when running… read more
Mike Mcmillan
Mike Mcmillan
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Speedometer quits working and the truck loses power. 2013
speedometer quits working and the truck loses power. 2013 mack mp8 … read more
Mike Mcmillan
Mike Mcmillan
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6,455 satisfied customers
Working on a 2015 mack pinnacle with a mp8 engine. the
working on a 2015 mack pinnacle with a mp8 engine. the problem im having is it seems that the fuel seems to be loosing pressure when it sits so i have to crank it a while before it wil start. is there… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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6,455 satisfied customers
My Mack cxu 613 is saying check fuel filter. It is also
My Mack cxu 613 is saying check fuel filter. It is also sputtering and occasionally the speed decreases … read more
Mike Mcmillan
Mike Mcmillan
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On a 2012 mack mp8 engine can u tell me exactly where this
on a 2012 mack mp8 engine can u tell me exactly where this fuel check vavle is on the front of the head ,if its on driver or passenger side… read more
Mike Mcmillan
Mike Mcmillan
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6,455 satisfied customers
2014 mack Pinnacle MP8 engine truck cranks over but will not
2014 mack Pinnacle MP8 engine truck cranks over but will not start unless the throttle pedal is quickly pumped, and it still takes several attempts.truck will start normally if running, shut down and … read more
Mike Mcmillan
Mike Mcmillan
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6,455 satisfied customers
I have a 2013 Mack with an MP7. Having an issue with fuel.
I have a 2013 Mack with an MP7. Having an issue with fuel. We have changed the injectors, injector cups, fuel filter base, pump, cleaned out tank, fuel filters, check valves and replace both hose that… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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6,455 satisfied customers
2012 MACK MP8 ENGINE WERE IS THE CHECK VALVE FOR FUEL SYSTEM
2012 MACK MP8 ENGINE WERE IS THE CHECK VALVE FOR FUEL SYSTEM TRUCK BLEEDS BACK FUEL AFTER SITTING AWILE… read more
Mike Mcmillan
Mike Mcmillan
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6,455 satisfied customers
I have a Mack MP8 445 with lose of power issue. Changed fuel
I have a Mack MP8 445 with lose of power issue. Changed fuel filters still having the issue … read more
Mike Mcmillan
Mike Mcmillan
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6,455 satisfied customers
2009 Mack GU713 with a MP8-425M Hard start when sits
Second opinion] 2009 Mack GU713 with a MP8-425M Hard start when sits overnight cranks over then shuts off … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
2009 Mack GU713 with a MP8-425M Hard start when sits
2009 Mack GU713 with a MP8-425M Hard start when sits overnight cranks over then shuts off … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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6,455 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
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6,455 satisfied customers
2014 Mack CXU 613 is not getting fuel after new filter
2014 Mack CXU 613 is not getting fuel after new filter housing and fuel pump. Is there a complete fuel system diagram?… read more
Mike Mcmillan
Mike Mcmillan
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6,455 satisfied customers
HAVE A 2011 GXU 613 MACK MP8 ENGINE FUEL LEAK DOWN OVERNIGHT
HAVE A 2011 GXU 613 MACK MP8 ENGINE FUEL LEAK DOWN OVERNIGHT REPLACED FILTER BASE TRYING TO FIND OUT IF FUEL SHOULD COME OUT OF RETURN FUEL LINE WHILE PRIMING FILTERS THE PRIMER VALVE WAS LEAKING FUEL… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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6,455 satisfied customers
Where is the fuel transfer pump located on an MP8 425E Mack
Where is the fuel transfer pump located on an MP8 425E Mack engine ? … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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6,455 satisfied customers
I just bought am 08 Mack with the MP7 engine this past
Hello, I just bought am 08 Mack with the MP7 engine this past Saturday. Drove it for about two hours and noticed that it started losing power and acted like it was starved for fuel. Put more fuel in i… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 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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