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Related Medium and Heavy Trucks Questions
2005 mack ch613 seems to have dropped the fuel. How do you
2005 mack ch613 seems to have dropped the fuel. How do you prime it? … read more
Steven
Steven
Shop Foreman/Triage Tech
Associates
1,854 satisfied customers
Have a truck with fault code: Engine Controller Fuel
Have a truck with fault code: Engine Controller Fuel Delivery Pressure Reserved … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
202 satisfied customers
It runs out of fuel idling. Mack chn613 427. Replace all
Replace all fuel lines bypassed eco and primary fuel filter … read more
Steven
Steven
Shop Foreman/Triage Tech
Associates
1,854 satisfied customers
1993 Mack e7 300 engine looses fuel prime to first filter
1993 Mack e7 300 engine looses fuel prime to first filter have replaced lift pump, spring was brke in old pump but still loosing fuel to first filter … read more
Steven
Steven
Shop Foreman/Triage Tech
Associates
1,854 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
Steven
Steven
Shop Foreman/Triage Tech
Associates
1,854 satisfied customers
2013 Mack Regen temps not not getting high enough to regen.
2013 Mack Regen temps not not getting high enough to regen. … read more
Steven
Steven
Shop Foreman/Triage Tech
Associates
1,854 satisfied customers
Oil leak on range change back of 18 speed mack box. Oil leak
Oil leak on range change back of 18 speed mack box … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,400 satisfied customers
Have a 2000 mack rd688s.Driver said it was using 2 gallons
Have a 2000 mack rd688s.Driver said it was using 2 gallons engine oil a day. He also said it was blowing a heavy stream of white smoke, especially when jake brake was on. When i test drove it i for th… read more
Steven
Steven
Shop Foreman/Triage Tech
Associates
1,854 satisfied customers
I have a 2007 mack with the 380 engine i shut truck down for
Second opinion] i have a 2007 mack with the 380 engine i shut truck down for the day and next morning it wont start it wont hold prime i have new fuel pump new filters and we cant get prime pulling of… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 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
3,632 satisfied customers
I recently retuned my MP8 deleted the DPF and egr and gave
I recently retuned my MP8 deleted the DPF and egr and gave it 48 more hp it now doesn't want to pull can hardly make 100 km per hour loaded … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
I have a 2005 Mack Granite CV712. My backup lights and wired
I have a 2005 Mack Granite CV712. My backup lights and wired in backup alarm are not working. I seem to have power at the load center under the hood. My transmission backup light switch is new and wor… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
2007 MP7 runs good in lower ear but looses power in higher
2007 MP7 runs good in lower ear but looses power in higher gear (spped ) no manifold pressure … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
When fuel tanks hit about half the truck wants to run out of
when fuel tanks hit about half the truck wants to run out of fuel … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,458 satisfied customers
2004 Mack. I KNOW there are two fuel filters on this truck.
2004 Mack. I KNOW there are two fuel filters on this truck. New husband doesn't believe me and can't find second filter. I can't ask my ex. Please help. I had this issue when the truck was first purch… read more
Curtis B.
Curtis B.
Retired service manager
Associate Degree
3,486 satisfied customers
GOT A 2000 ISX SIGNATURE SERIES 600. Had this motor
GOT A 2000 ISX SIGNATURE SERIES 600. Had this motor overhauled recently. It has been running great for about 30000 miles until yesterday. its all of a sudden started surging up and down from idle to a… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
202 satisfied customers
I am working on a mack ch613, it has an E7 engine. engine
I am working on a mack ch613, it has an E7 engine. engine has a miss. I cracked the injector lines at the electric solenoids and #1 and #3 make no difference. I was thinking of swapping two of the sol… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,400 satisfied customers
I'm looking at a 2012 CXU613. Has the MP8, Fuller RTL018918B,
I'm looking at a 2012 CXU613. Has the MP8, Fuller RTL018918B, and 3.58 rears. What problems do I need to know about the MP8 regarding reliability, fuel/oil consumption? Any valve train or after treatm… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

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I am ASE Master Truck Certified.

Wayne

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

Jeremy

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cumminsdr

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Chris (aka-Moose)

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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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