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'm trying to see if my mechanic is right about an
I'm trying to see if my mechanic is right about an adjustment he says needs to be made to my injectors on my 453. there is a pin hole in the top of the injector and he says this is an adjustment locat… read more
Keiphun Sowell
Keiphun Sowell
AutoDiesel Technology
256 satisfied customers
New injector wireing harness, new sensor harness, injector
new injector wireing harness, new sensor harness, injector selinods test good wont start high voltage to all injectors is what its showing on computer. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
Engine runs very hot in exh. Cat 3406c,ser#3ER04179,DECK
Engine runs very hot in exh JA: What's the make/model/year of your truck? Engine type? Customer: cat 3406c,ser#3ER04179,DECK ENGINE ON A DRILL RIG JA: Are you fixing your truck yourself? What have you… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
We have an 03 Detroit nom start replaced both cam and crank
we have an 03 Detroit nom start replaced both cam and crank sensors, we have injector pulse width and rpms, replaced wiring harness and computer, computer has all the grounds and power - switched and … read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
I've been following this thread. Have an 07 T800 KW. That
I've been following this thread. Have an 07 T800 KW. That intermittently develops a miss or stalls from time to time at an idle. Fuel pressure fluctuates from 65 to 70psi @ idle to 80psi at 1500 rpm. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I am getting spn 157 fmi 16 i have cummins isx6. Kenworth
hi i am getting spn 157 fmi 16 i have cummins isx6 … read more
Mike
Mike
Triage Tech/Shop Foreman
Associates
214 satisfied customers
I got a 2008 freightliner Columbia with a 60 series Detroit
I got a 2008 freightliner Columbia with a 60 series Detroit (ddec 6, I think,) trying to install a 60 series (ddec 5) can it be done and how do I go about it. … read more
Mike
Mike
Triage Tech/Shop Foreman
Associates
214 satisfied customers
I have a c12 in a 2000 t800 kw. I had diesel in the water
I had diesel in the water and found a cracked injector cup. Installed new cups, injector prints ect. Also a new injector harness. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I have changed the injectors and have another question as to
HI again. I have changed the injectors and have another question as to a uneven idle right now...should we start a new thread..or..how does that work. Also have a brake and ABS lights on with a chime … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
2003 gmc C7400 has a 3126E Cat. Gmc C7500 2003. Has a 3126E
Yes it came in last week with a shutdown problem. I replaced all the injectors because it had a code set for the #2 and #5 injector. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
Caterpillar C7 ACERT in a 2005 Freightliner M2. Engine was
Caterpillar C7 ACERT in a 2005 Freightliner M2. Engine was using oil and low on power. Owner wanted new engine. Removed engine and installed reman long block. Had to transfer oil pan and main oil pump… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I'm working on a 2001 freightliner with a 8.3litre cummins.
Hi, I'm working on a 2001 freightliner with a 8.3litre cummins. Engine serial number 46102611.The engine runs rough at start up and stalls sometimes, it seems to be putting diesel fuel into the oil pa… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,458 satisfied customers
How is your service priced? Cat 3126 in '99, Trying to! New
Trying to! New speed/timing sensor, new fuel transfer pump, checked power to ecm (from harness side), pin 70 has 9.8 to 10 volts when cranking, Fuel restrictor at back of head works, with no sign of metal fragments. Also, sprayed contact cleaner on both ECM pins and sockets. This cat 3126 is in '99 GMC. Engine serial #7AS79444. Oh, cannot check flash codes as vehicle does not have cruise control. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
Well doc I've got this old truck with NTC-350 according to
Well doc I've got this old truck with NTC-350 according to serial #. But the guy i boughtit from said its been upgraded to 400. Anyway its not torquing up like I thunk it should. I personally have ins… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
A "STATION ATTENDANT" A DUMB OVERWORKED GIRL FILLED ME UP WI
A "STATION ATTENDANT" A DUMB OVERWORKED GIRL FILLED ME UP WITH REGULAR GAS IN A 2003 F-35O. SHE WAS TOLD DEISEL BUT ILLED IT UP WITH GAS. I DROVE THREE OR FOUR MILES, ENGINE SPUTTERED, THEN BLEW UP WI… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
I am working on a mack ch613, it has an E7 engine. engine
I am working on a mack ch613, it has an E7 engine. engine has a miss. I cracked the injector lines at the electric solenoids and #1 and #3 make no difference. I was thinking of swapping two of the sol… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,400 satisfied customers
I have a 2006 C7 ACERT Cat engine that runs rough at idle but
I have a 2006 C7 ACERT Cat engine that runs rough at idle but great when at 1850-2000 rpms. During operation, when the vehicle comes to a complete stop it has a hard time for approx. 7-10 seconds acce… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I have a 2000 Newmar Dutch Star motor home with a freightliner
I have a 2000 Newmar Dutch Star motor home with a freightliner chassis and a CAT 3126 engine. Engine fault code is indicating a cylinder # XXXXX miss .....I read a blog where this guy mentioned that h… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 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

3,632 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

4,965 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

3,400 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,672 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

1,458 satisfied customers

All types of Cummins applications

Chris (aka-Moose)

Chris (aka-Moose)

Technician

149 satisfied customers

16 years of experience

dieseldan55

dieseldan55

Contractor

77 satisfied customers

Road Service mechanic for Volvo Construction.

< 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