Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

Connect one-on-one with {0} who will answer your question

Related Medium and Heavy Trucks Questions
I am working on a 2012 freightliner box truck with a cummins
Hi, i am working on a 2012 freightliner box truck with a cummins in it and i just put new injectors and was wondering if any one has a good way of bleeding the fuel system.… read more
NicholasM1019
NicholasM1019
Diesel Technician
Vocational, Technical or Trade School
7 satisfied customers
Welcome! How can I help with your equipment question? You
Welcome! How can I help with your equipment question? You 2001 F-650 Cummins Diesel, was running fine. One of my workers cleaned out the cab with a pressure washer, I came out of office to find by the… read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,571 satisfied customers
I have cummins engine 6hk1 and ı took 559 fault code. İt is
Second opinion] I have cummins engine 6hk1 and ı took 559 fault code. İt is about rail pressure pressure. … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
430 satisfied customers
I have a Freightliner MT 45 with a Cummins that has a code
I have a Freightliner MT 45 with a Cummins that has a code 254 running good at idle only … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
Isb cummins 6.7 runs great until temp get to normal range
isb cummins 6.7 runs great until temp get to normal range and looses fuel pressure ,dies and starts riht back up ,may run five min. or may run all day it a guess … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
430 satisfied customers
I have a 1998 freightliner with a cummins 5.9 isb 24
I have a 1998 freightliner with a cummins 5.9 isb 24 valve...seems like it's running out of fuel...starts, runs for a couple seconds then coughs and stalls. I've replaced the lift pump and both fuel f… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
I have a 1993 8.3 Cummins in a Ford F 800 apparently my lift
I have a 1993 8.3 Cummins in a Ford F 800 apparently my lift pump is out can they be rebuilt? In shopping for a new one I see prices from $25 to over 300 but no way to tell the quality of the product.… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
430 satisfied customers
I have a 2002 freightliner 32 pass. bus with a 6.9 cummins
i have a 2002 freightliner 32 pass. bus with a 6.9 cummins engine with a allision transmission.Got to the point that I have spray starting fluids in order to crank it. at times while idling it will mi… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
I have a 2005 ram with the 5.9 and it is hard starting and i
i have a 2005 ram with the 5.9 and it is hard starting and i was wondering if the injectors were fired by oil pressure … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
430 satisfied customers
Need help diagnosing fuel system. 2011 Freightliner Coronado
2011 Freightliner Coronado sd122 with a Detroit DD16 engine … read more
Roy Belding
Roy Belding
7,581 satisfied customers
I got a 2008 Cummins isx. It has really cranking before ithe
I got a 2008 Cummins isx. It has really long cranking before ithe fires and when it fires it has a puff of whiteish grey smoke then runs normalike. Smooth idle. I've changed the actuators check valves… read more
][\][iCk0411
][\][iCk0411
Fleet Warranty Manager
Vocational, Technical or Trade School
5 satisfied customers
The high pressure fuel pump went out so I replaced it now it
the high pressure fuel pump went out so I replaced it now it wont start … read more
Roy Belding
Roy Belding
7,581 satisfied customers
I have a 2002 freightliner schoolbus with a 5.9 cummins
I have a 2002 freightliner schoolbus with a 5.9 cummins engine. starts fine, idles fine, runs on flats fine. dies on hills badly or when loaded.… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
My 98 Freightliner stepvan 24 valve 5.9 low pressure pump
My 98 Freightliner stepvan 24 valve 5.9 low pressure pump failed. I took the pump off and apart.. washed it out several times.. and got it running fine.. reinstalled it. I primed to the high pressure … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
Hi! I have a 1995 Freightliner with a 60 series detroit in
Hi! I have a 1995 Freightliner with a 60 series detroit in it.I have done an in-frame on it and now it will not start. I am confident that the cam shaft timing is good and valve injector settings on i… read more
Roy Belding
Roy Belding
7,581 satisfied customers
Hello, I have a 1989 f800 with a 6.6 170 hp diesel. Took a
Hello, I have a 1989 f800 with a 6.6 170 hp diesel. Took a about 4 oz of water out of the seperator. Started truck up this am. Ran fine. Went to leave truck Died. Would not restart. Used pump to prime… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
98 5.9 cummins cranks but wont start. changed fuel filter,
98 5.9 cummins cranks but wont start. changed fuel filter, new lift pump. should I crack open all injecter lines to get rid of any air in lines??… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
i have a 2004 freightliner mt45 step van with a 5.9 l cummins
i have a 2004 freightliner mt45 step van with a 5.9 l cummins eng. it starts running very sluggish at idle in drive more so than not. I just replaced the lift pump and the #6 injector, and it has a ne… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
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.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

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

< Previous | Next >

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.

Show MoreShow Less

Ask Your Question

x