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I ran out off fuel and want to know how to prime it back
I ran out off fuel and want to know how to prime it back after fueling … read more
Steven
Steven
Triage Tech/Shop Foreman
Associates
11 satisfied customers
2006 mack ,mp7 engine. 2007 mack,mp7. 2007 mack,mp7. black
2007 mack,mp7. black smoke only when shifting.do not smoke when idling.there is no air leak turbo is ok no oil visible.on the exhaust manifold there is a small amount of oil coming out. … read more
Steven
Steven
Triage Tech/Shop Foreman
Associates
11 satisfied customers
We have a 2009 Mack Granite GU813 with a MP7 engine. The
Hi there We have a 2009 Mack Granite GU813 with a MP7 engine. The truck initially had an egr valve fault code when we went out to it first. The truck has low power and had a DPF delete. The only activ… read more
Steven
Steven
Triage Tech/Shop Foreman
Associates
11 satisfied customers
Got a EM7-300 Mack 11GBA24622 P3 ....... was running fine
got a EM7-300 Mack 11GBA24622 P3 ....... was running fine then shut off like it ran out of fuel, cracked injectors no fuel coming out, replaced lift pump still nothing.. pressurized fuel tank getting … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 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
2,803 satisfied customers
I have a 2007 Mack Granite with a MP7 engine. The model
I have a 2007 Mack Granite with a MP7 engine. The model number is ***** 713, ser# ***** The problem is fuel is mixing with the oil. What are all of the various scenarios that this could happen? I need… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
Have a 2012 Mack with a mp7 had a code for fan clutch had it
Have a 2012 Mack with a mp7 had a code for fan clutch had it in a shop they verified I replaced the fan clutch no codes now but still have no manifold pressure are boost pressure … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
2010 MACK CHU613 ATC CODE 77 FMI 7 changed both front abs
2010 MACK CHU613 ATC CODE 77 FMI 7 changed both front abs sensors and modulators seem to power up ok. checked pins for corrosion and still cant get code to clear. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 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
2,803 satisfied customers
I have a 2008 MP7 that drains front fuel filter dry at idle,
I have a 2008 MP7 that drains front fuel filter dry at idle, runs fine going down the road. Any ideas? … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
MY MACK 2008 LEU MP7 TRUCK IS CUTTING OUT. WE REPLACED WATER
MY MACK 2008 LEU MP7 TRUCK IS CUTTING OUT. WE REPLACED WATER PUMP, FUEL SENSOR AND THERMOSTAT AND HAD MUFFLER SYSTEM REMOVED AND CLEANED. THE ATC LIGHT IS CONTINUING TO COME ON. WHAT COULD IT BE?… read more
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Fleet Warranty Manager
Vocational, Technical or Trade School
5 satisfied customers
I have a 1999 mack rd688s and it starts right up but will
I have a 1999 mack rd688s and it starts right up but will only run right for a couple hours and then lose powerand only do 45 mph … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
2013 mack gu813 dpf system fault active code aftertreatment
2013 mack gu813 dpf system fault active code aftertreatment 1 purge air actuator- bad intelligent device or component… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
Cant get air system to pressure up..no leaks new governor.
Can't get air system to pressure up..no leaks new governor. .I'm able to hold air pressure back with thumb at air compressor… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
254 satisfied customers
Have a460 mack was spitting and cracking in exhaust put new
Have a460 mack was spitting and cracking in exhaust put new head on had injectors tested now it is slow to open up and has feul showing where exhaust goes together. And the smell of raw feul also low … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
I have a DT466E engine. It died and had it towed home. It
I have a DT466E engine. It died and had it towed home. It had 0 fuel pressure at the shraeder valve. Replaced the fuel filter. It will start with ether, but will not idle and on the road will buck, if… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
696 satisfied customers
2008 Mack MP7 fuel problem, motor acts like it is running out
2008 Mack MP7 fuel problem, motor acts like it is running out of fuel or getting air in it at a idle. As long as you keep rpm's up it runs fine. Replaced fuel transfer pump, checked fuel lines, replac… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,892 satisfied customers
Hello, I have been reading your answers, and I am happy with
Hello, I have been reading your answers, and I am happy with your correspondence with customers. I have a 93 Mack E7 Mechanical engine that developed low oil pressure shortly after replacing a cylinde… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,892 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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