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
Freightliner class is with code SID-254 FMI 8. We replaced
yes, we replaced the cam and crank shaft sensors, the power plug to the ECM was damaged crated loose connection and we have fixed that as well … read more
Roy Belding
Roy Belding
7,602 satisfied customers
Low whaa... noise when under load on acceleration and now
Second opinion] Low whaa... noise when under load on acceleration and now loss of power. My company shop thinks its the fuel pump but dealer said they cannot find anything. No one is willing to change… read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,571 satisfied customers
I had a new ecm put on at freightliner..now it don't pull
I had a new ecm put on at freightliner..now it don't pull good and it coughs all the time … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
My 2007 kenworth t800 with 500hp Cummins isx engine when I
My 2007 kenworth t800 with 500hp Cummins isx engine when I put my foot to the floor on the acceleration nothing happens for a few seconds then the turbo kicks in and we're off to the races. Any idea w… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
210 satisfied customers
My ASV sr 80 doesn't go above 1700-1800 rpm; problem started
my ASV sr 80 doesn't go above 1700-1800 rpm; problem started all of a sudden. Changed transfer pump and bled the pump. Once reaching 1700 - 1800 the engine rpm will die down to around 1600. Also notic… read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,571 satisfied customers
I have a 2006 Freightliner Columbia, ddec 5 ,14 ltr. Problem
I have a 2006 Freightliner Columbia, ddec 5 ,14 ltr. Problem seems random but more pronounce when pulling hills no matter how slight. So, what it does is at idle for no reason the actuator will up and… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
12,203 satisfied customers
Im working on a Detroit diesel series 60. Truck randomly
Im working on a Detroit diesel series 60. Truck randomly looses power and smokes awful. Codes I got were SID 146 FMI 2 and SID 147 FMI 2. I have very little experience with the Series 60. Just wonderi… read more
Roy Belding
Roy Belding
7,602 satisfied customers
I have a c15 acert and a 2001 c15 single turbo in a Pete can
I have a c15 acert and a 2001 c15 single turbo in a Pete can I swap them and what problems would I have… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
2009 freightliner Coronado. Randomly looses air, can't hear
2009 freightliner Coronado. Randomly looses air, can't hear any leaks. Put a new govenor and dryer filter on. Once it drops to 80 it will rebuild. Sometimes it doesn't rebuild and have to shut truck o… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
Hello i have a 1998 freightliner classic with a 60 serious
Hello i have a 1998 freightliner classic with a 60 serious Detroit motor. the truck broke down in Vermont over the weekend the shop side the turbo was bad so they put a new turbo on it. Well come to p… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
First time starting my truck in the morning it blows clouds
First time starting my truck in the morning it blows clouds of white smoke. After it warms to almost the halfway mark smoke turns to blue. If I turn the truck off and reset the ecu by switching from t… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
My freightliner classic with detroit 60 in it, wont go more
My freightliner classic with detroit 60 in it, wont go more than 55 mph fuel filters have been changed, turbo seems fine, no error codes, no smoke, all fluids are good.… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
210 satisfied customers
My 1999 freightliner blows a lot of smoke out of the exhaust.
My 1999 freightliner blows a lot of smoke out of the exhaust. Previous owner just changed injector 2,4,5 because he thought that would stop the smoking. He also stated that the fuel and air filters ne… read more
Travis A. Wells
Travis A. Wells
Truck Mechanic
Associates of Applied Science
15 satisfied customers
Im driving 2008 freightliner columbia when ever im driving
I'm driving 2008 freightliner columbia when ever im driving uphill my turbo shuts off I got it checked n I was told to replace the turbo actuator… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
Have 07 Freightliner century. Dd 60 14 ltr. 750,000 has been
Have 07 Freightliner century. Dd 60 14 ltr. 750,000 has been running excellent but coolant level sensor went bad, unplugged it, drove about 1400 miles. Take off with back haul, damn seems way heavy . … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
12,203 satisfied customers
I have a 2006 Freightliner with a 14 ltr Detroit 450hp. Upon
I have a 2006 Freightliner with a 14 ltr Detroit 450hp. Upon acceleration i am getting a miss with black smoke coming out the exhaust pipe. Cruising it is fine, as soon as you ask for power is starts … read more
Clayton
Clayton
Technician
Vocational, Technical or Trade Scho
627 satisfied customers
cat man I have a turbo question. I have two c15s one in a
cat man I have a turbo question. I have two c15s one in a flat top pete that we rebuilt in the spring and the other in a midrise that we just rebuilt. Both are 6nz motors. the one in the spring we put… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
I have a 2004 Freightliner Columbia with a Series 60 Detroit
I have a 2004 Freightliner Columbia with a Series 60 Detroit Diesel. When accelerating under load the engine seems to hiccup (a very short loss of power) shortly after shifting. We changed the fuel fi… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 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

12,203 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