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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
Steven
Steven
Triage Tech/Shop Foreman
Associates
11 satisfied customers
I need the specs for a mack cylinder balance test. What is
I need the specs for a mack cylinder balance test. What is normal % range for each cylinder... allowable tolerances etc can anyone get me this info?… read more
Steven
Steven
Triage Tech/Shop Foreman
Associates
11 satisfied customers
I have 2008 mack gu 713 dump truck with mp7, 85000 miles &
I have 2008 mack gu 713 dump truck with mp7, 85000 miles & each time it regens loose about half gallon of oil out of blow by tube. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
7,166 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
2,243 satisfied customers
I have a 1979 Mack Boom truck, I can not get the boom to
Hello I have a 1979 Mack Boom truck, I can not get the boom to work, it will go very slow and then stop, if I shift the gear for PTO it will work again very slow and stop? What is the problem? … read more
][\][iCk0411
][\][iCk0411
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
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Looking for the oil pressure spec on mack e-tec 2001, mack
looking for the oil pressure spec on mack e-tec 2001 … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
2010 Mack day cab with MP7 engine, keeps shutting down
2010 Mack day cab with MP7 engine, keeps shutting down because of low oil pressure. Replace the oil sensor still same problem.… read more
Roy
Roy
shop foreman
Associate Degree
4,473 satisfied customers
I hav a f650 ford truck cat motor high idle works intermitently
i hav a f650 ford truck cat motor high idle works intermitently works for me all the time driver drives it wont work during the day i get to work at night no problem with it driving me nuts … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,530 satisfied customers
I have a 1997 rd688 Mack or roll off truck fuse number 18 in
I have a 1997 rd688 Mack or roll off truck fuse number 18 in the fuse box keeps keeps clicking on and off what other components are on that circuit… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
BenjyI have a nissan 2.6l non turbo diesel that has done
hi Benjy I have a nissan 2.6l non turbo diesel that has done 305000 kms. It has started missing when the revs are above about 2000 rpm and blowing copious clouds of blue smoke. There doesn't appear to… read more
Curtis B.
Curtis B.
Technician
Associate Degree
991 satisfied customers
I have a 2001 mack rd688s with a 8LL transmission and 400 motor.
I have a 2001 mack rd688s with a 8LL transmission and 400 motor. It was making a strange noise at very slow speeds during the warm weather. It only happened while hauling a heavy load, usually up a hi… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
7,166 satisfied customers
I have 06 hino 338 auto,wont go in gear ,keeps blinking in
I have 06 hino 338 auto,wont go in gear ,keeps blinking in every gear including reverse also engine seems to be idling higher… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
696 satisfied customers
05 Mack CV713 granite with allison auto 4500rds. Tri axle dump
05 Mack CV713 granite with allison auto 4500rds. Tri axle dump with Camel back (no air bag suspension).Problem: Vibration coming from motor when gears shift and when loaded. This happens in the 3rd an… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
We have Diesel going into the oil sump where would the oil
We have Diesel going into the oil sump where would the oil be coming from ??? We have already fitted the following and diesel continues to leak into the oil New Seal on EPU fitted New Seal on injector… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,892 satisfied customers
we have a mack mr trash truck started blowing out inside tires
we have a mack mr trash truck started blowing out inside tires 1x a week( same tire), a guy who worked for another trash company said they had the same problem same mr mack same trash body co. we rece… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,892 satisfied customers
I have a 96 mack Rd690 blowing oil out of the oil check tube.
I have a 96 mack Rd690 blowing oil out of the oil check tube. When I take the cap off the oil fill tube it blows out there too.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,530 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
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Meet the Experts:

Daniel Wilson

Daniel Wilson

7,166 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

4,530 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

2,892 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,243 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician

cumminsdr

cumminsdr

Mechanic

1,351 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

991 satisfied customers

Technician turned service manager on multiple lines of trucks and engines, used in industry.

dieseldan55

dieseldan55

Contractor

74 satisfied customers

Road Service mechanic for Volvo Construction.

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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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