Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
I have p42 crank but no start. 2003 work horse p42 form
I have p42 crank but no start JA: Will the headlights turn on? Is the battery fully charged? Customer: Yes JA: What is the model/year of your GMC? Customer: 2003 work horse p42 form usps JA: Are you f… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have bought a 1986 mack box truck i was told that it had a
i have bought a 1986 mack box truck i was told that it had a problem, but it will run with a hot of starter fluid and … read more
Bradey V
Bradey V
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Got an n14 i have replace the check valve for the fuel the
got an n14 i have replace the check valve for the fuel the fuel solenoid the small filter in the fuel pump and it still seems to lose its prime takes a bit of craking to staRT … read more
Wayne
Wayne
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Vocational, Technical or Trade Scho
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2019 Mack Granite Roll Off, weird electrical issues, for a
2019 Mack Granite Roll Off , weird electrical issues , for a while the window switch would be very intermittent but has cleared up , now its the turn signal , wiper and headlights that are malfunction… read more
Mike Mcmillan
Mike Mcmillan
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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
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I also have an is issue with my DT 466, The truck starts
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GED
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I have 07 cat c7 i changed fuel water seperator filter after
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Was driving down the road doing 65 and the engine died and
was driving down the road doing 65 and the engine died and wouldnt start back up have changed the lift pump and made sure all lines are clear and the lift pump is primed no fuel is getting to the fuel… read more
Curtis B.
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How to do valve lash adjustment on a Mack 460 e7 etech? And
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The truck doesnt start. On the dash it says "noeng" and the
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FIX-IT
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I have a pt110f 2013 that engine runs about 30min then shuts
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Daniel Wilson
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I have a 2010 Mack with a MP8. There is not enough clearance
I have a 2010 Mack with a MP8. There is not enough clearance to adjust the valves … read more
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If I turn key on it wants to start and will start but it keeps
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Have 2013 maxxforce dt that wort run on own, we have
Have 2013 maxxforce dt that wort run on own, we have replaced filter housing assembly, replaced filter housing assembly, injector seals, fuel rail seals, tested ICP sensor and still won't start withou… read more
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Daniel Wilson
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I ran my truck with one of the fuel tanks open day and a
Hello, I ran my truck with one of the fuel tanks open for about day and a half in heavy rain… read more
Curtis B.
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I have a 2004 L9500 with Mercedes in it. check engine light
I have a 2004 L9500 with Mercedes in it. check engine light come on and code ECU 128. About 1500 rpm's engine starved for fuel. any idea's what wrong… read more
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Meet the Experts:

Daniel Wilson

Daniel Wilson

4,737 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,234 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

4,023 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,740 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

1,700 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

1,571 satisfied customers

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

Chris (aka-Moose)

Chris (aka-Moose)

Technician

353 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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