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I have a Mack with a 335 np Mack internal EGR E7. It has
Hello,I have a Mack with a 335 np Mack internal EGR E7. It has codes for atheism solenoid boost voltage logged 3 times fmi 4. It also has codes 8-1 through 8-6, each logged only once,fmi 2. The V Mack… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
528 satisfied customers
I have 2003 Mack E7. Injectoer solenoid bad. Bought new
I have 2003 Mack E7. Injectoer solenoid bad. Bought new injector pump with solenoid. Whats the del about timing it ? … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
528 satisfied customers
Im trying to find a trouble shooting code for Rack Position
Im trying to find a trouble shooting code for Rack Position Sensor -Voltage above normal or shorted to high SID 24, FMI 3 … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
528 satisfied customers
I've got a 2006 Cxn Mack. Crank but won't start. Fuel is
I've got a 2006 Cxn Mack. Crank but won't start. Fuel is present … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
528 satisfied customers
Have a Mack e7 427. The fan clutch is locked in and we were
Have a Mack e7 427. The fan clutch is locked in and we were diagnosing it. checked solenoid fine. Went to eck … read more
Keiphun Sowell
Keiphun Sowell
Owner Brothers Restoration/Troubleshoot
AutoDiesel Technology
1,761 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
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
528 satisfied customers
2006 Mack with CV713 vin: ***************** engine brake is
2006 Mack with CV713 vin: ***************** engine brake is sticking on, you can disconnect the harness and it will not help... you can let it st overnight and sometimes it will disengage on its own,,… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
528 satisfied customers
Was looking for rod and main brg plus head tourqe. E7 400.
Yes rebuilding for a customer. Doing an inframe ive got one liner in and putting that piston in # 3 hole. Wanting to put all piston in then do main brgs … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
528 satisfied customers
It's been sitting up and won't start. New fuel and filters
It's been sitting up and won't start. New fuel and filters but having a fuel problem … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
528 satisfied customers
I just need the cylinder head torque spec sfor e7 355/380
Hi i just need the cylinder head torque spec sfor e7 355/380 motor … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
528 satisfied customers
I have a E7 427 mack with elec fuel pedale, it run rough and
i have a E7 427 mack with elec fuel pedale, it run rough and smoke white and blue , injector seem fine advance timming selenoide had a broken Oring … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,454 satisfied customers
10 : 1999 mack e7 460 turned on side towed to shop no damage
1999 mack e7 460 turned on side towed to shop no damage but wont start run on either only … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,454 satisfied customers
Working on a mack (mtg date 02/1999). engine is an e7 427.
working on a mack (mtg date 02/1999). engine is an e7 427. had a miss on #1 and #3 cylinder. Confirmed this by loosening the injector lines at the electric solenoids. I installed 2 reman injectors. #1… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
16,402 satisfied customers
My Mack truck engine is accelerating on its own when you start
My Mack truck engine is accelerating on its own when you start it , why ?? Its a 1994, Tri Axle dump truck.… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,454 satisfied customers
Got a Mack truck with code SID 231 FMI 8, It starts and runs
Got a Mack truck with code SID 231 FMI 8, It starts and runs at a high Idle but will not accelerate.… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,747 satisfied customers
i have a 1995 mack dumptruck with the vin number 1M2P267C9VM029858
i have a 1995 mack dumptruck with the vin number 1M2P267C9VM029858 MODEL NUMBER RD588S the owner had fuel issues with it and yesterday it just stopped working the injection pump voltage is looking lik… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,454 satisfied customers
2000 mack here with e7-460 engine getting oil in the water.
2000 mack here with e7-460 engine getting oil in the water. do these engines have oil cooler problems?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,293 satisfied customers
My 2000 Mack E7 300 Model# XXXXX is having problems once I get
My 2000 Mack E7 300 Model# XXXXX is having problems once I get to to 40 MPH the eng shudders it is like the eng is cutting in and out we changed the turbo but that did not help we have a vcads and the… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,454 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

5,454 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,293 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

16,402 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,747 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

cumminsdr

cumminsdr

Mechanic

1,824 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

1,806 satisfied customers

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

Chris (aka-Moose)

Chris (aka-Moose)

Technician

462 satisfied customers

24 years of experience diagnosing & repairing

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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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