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 have a freightliner it builds air reach's max and it
I have a freightliner it builds air reach's max and it purges but want build pressure back until I pump backs and get back to around 40 psi … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,332 satisfied customers
My freightliner m2 will not build air pressure more then
my freightliner m2 will not build air pressure more then 75lbs … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,332 satisfied customers
We have a high oil pressure issue on a 2009 freightliner
We have a high oil pressure issue on a 2009 freightliner with a 6.7 cummins reading 70 psi all the time … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,332 satisfied customers
No air I changed air dry still no air checked it with a
No air I changed air dry still no air checked it with a gauge going into air dryer at only 70 psi but no higher … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,332 satisfied customers
I'm trying to find a clutch for a 2005 Freightliner m2 with
I'm trying to find a clutch for a 2005 Freightliner m2 with a Mercedes Benz 4000 12.8 with an Eaton Fuller transmission … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,332 satisfied customers
I have a 2013 Freightliner vin 1fujghdv0dsfa0570. It has
I have a 2013 Freightliner vin 1fujghdv0dsfa0570.It has trouble building air pressure past 60 psi. But if you rev it up and get it up to 100 psi everything works normally.Audible leak on passenger sid… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,332 satisfied customers
I replaced the engine compressor, the oil separator and the
Good evening! I replaced the engine compressor, the oil separator and the air dryer with the governor, but the air pressure is increasing as slowly as it is practically the same as before I replaced t… read more
Keiphun Sowell
Keiphun Sowell
Owner Brothers Restoration/Troubleshoot
AutoDiesel Technology
1,751 satisfied customers
I have a 2007 freightliner columbia mbe4000 i cant get it to
I have a 2007 freightliner columbia mbe4000 i cant get it to built any air at all i replaced the dryer with governor on it I replaced the primary ait tank and check valve on fron of it along with all … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,454 satisfied customers
I have a 2005 Sterling with a Mercedes Benz MBE 4000 engine.
Hi. I have a 2005 Sterling with a Mercedes Benz MBE 4000 engine. When it sits overnight it loses prime. I have changed the check valve on the fuel filter mounted on the engine block. It didn't help. T… read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,806 satisfied customers
Coolant drop/ leaks from reservoir on 2007 Freightliner m2
coolant drop/ leaks from reservoir on 2007 Freightliner m2 business class MBE 4000, looking for advise how to replace reservoir ? … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,747 satisfied customers
Truck won't build air new d2 governor and air dryer
truck won't build air new d2 governor and air dryer bypassed … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,563 satisfied customers
I have a 2008 Freightliner m2 106 with a mbe900 260hp motor
i have a 2008 Freightliner m2 106 with a mbe900 260hp motor and a allison automatic transmission 6 speed. wanting to get more hp/torque. pulling 40' fifth wheel trailer all loaded up for comfort lil o… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,454 satisfied customers
At start up the 2006 Freightliner sometimes the air pressure
At start up the 2006 Freightliner sometimes the air pressure will not build up past 60psi,even at higher rpm's.Other times it gets up to 100psi at idle. … read more
Roy Belding
Roy Belding
7,796 satisfied customers
I have a 2007 Century Freightliner with the Mercedes MBE
I have a 2007 Century Freightliner with the Mercedes MBE 4000 my oil pressure is going up to around 70 psi's when I'm driving normally it stays around 55 what could be the problem … read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,806 satisfied customers
Im having a problem building air pressure. It will not get
Hey im having a problem building air pressure. It will not get about 30psi. I changed d2 governor and still no pressure. Has s code 6H 164. Can u please help me … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,454 satisfied customers
I have a 2005 freightliner m2 with a mbe 4000 just had the
I have a 2005 freightliner m2 with a mbe 4000 just had the compressor replace right after it replace I have a oil leak coming from the area the compressor is took it back to freightliner they told me … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,454 satisfied customers
Freightliner Sportchassis M2: I need the wiring diagram for
I need the wiring diagram for my freightliner M2 truck with the Mercedes Benz MBE engine boost sensor. I have changed the sensor and the code reader says I have an open between the sensor and the VCU.… read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
Freightliner M2 business class air pressure wont pass 80ps
Freightliner M2 business class.... air pressure wont pass 80psi at idle with new compressor, new governor, air dryer , rear brake chamber...if I rev the truck it wld build and purge ... but after the … read more
Toby
Toby
Vocational, Technical or Trade Scho
107 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

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

4,563 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

< 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