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
We have a Cat 3126b, it started skipping. We replaced all 6
We have a Cat 3126b, it started skipping. We replaced all 6 injectors and injector cups. We did an overhead, went through the valves. Skipping on #1 cylinder is present … read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
117 satisfied customers
2002 Freightliner FL70 C7 3126 Cat Motor. First, over a year
2002 Freightliner FL70 C7 3126 Cat Motor . First, over a year ago, all dash lights and instrumentation including speedo just stopped working. Check engine light and fuel gauge do work. This truck has … read more
Daniel Wilson
Daniel Wilson
Associate Degree
6,648 satisfied customers
I was hoping to get a fuse box panel diagram for a 99
Good morning. I was hoping to get a fuse box panel diagram for a 99 freightliner fl70 with a 8.3l isc cummins.Thank you… read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
117 satisfied customers
I have a 99 freightliner fl70 with a 8.3l ISC cummins
I have a 99 freightliner fl70 with a 8.3l ISC cummins diesel. It cranks fine but currently won't start. I had the dealer replace the Lift pump and then another Diesel mechanic replace the fuel pressur… read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
117 satisfied customers
1998 FL70 Freightliner with an 8.3 Cummins motor. It will
1998 FL70 Freightliner with an 8.3 Cummins motor. It will run and then the engine shut off light will come on and the motor will shut off. It will restart, but in like five minutes it will do it again… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,939 satisfied customers
Cat 3126B. Just replaced the ecu and now have multiple codes
Cat 3126B. Just replaced the ecu and now have multiple codes and still will not start … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
We were on line yesterday afternoon with this international.
Hi we were on line yesterday afternoon with this international. I have ordered the ipr the ipc and a manual lift fuel pump. It aperies to be leaking oil. They will be in tomorrow from my local interna… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
622 satisfied customers
I am a heavy duty mechanic by trade. I have a 3126 cat
Hello I am a heavy duty mechanic by trade . I have a 3126 cat s/n#7as05448 in my 1998 national RV on a freightliner chassis. I bought this RV last spring. I serviced the whole unit. I used chevron del… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
622 satisfied customers
I have a Cat 3126B with power loss/missing issue. When it
I have a Cat 3126B with power loss/missing issue. When it started it would miss then blow some blue smoke under load like climbing a grade or accelerating after a stop. They scanned it and foundcodes … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Has code PID 164 FMI 11. 2002 chevrolet Kodiak w 3126 cat.
put a huei pump on had no fuel pressure before now have pressure but has this code … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I have a 1998 Freightliner FL70 with a cat 3126, cel on, no
I have a 1998 Freightliner FL70 with a cat 3126, cel on, no power, stalled out. Did restart and dron … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Have a 3126b cat motor serial number 1WM07663, put on a
Have a 3126b cat motor serial number 1WM07663, put on a rebuilt Huei pump yesterday, And now I can't get it to run, put on a fuel pressure gauge at the base of the filter and it doesn't seem like I'm … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I have just purchased a used 2002 built bus w/ a cat motor.
i have just purchased a used 2002 thomas built bus w/ a cat motor. it dies when it gets up to full operating temp and then it will restart once it cools down a bit. my mechanic put a gauge on the heui… read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
CAT 3126B engine in 2002 Airstream Motorhome on Freightliner
CAT 3126B engine in 2002 Airstream Motorhome on Freightliner XC chassis. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Hey I have a 05 freightliner with a cat c7 that barely starts
Hey I have a 05 freightliner with a cat c7 that barely starts and runs when it does there is no throttle response and if I unplug the 2 wire sensor on top of the huei pump the truck runs smooth no smo… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
vin #2h507010 We have a continual problem with cold stating
vin #2h507010 We have a continual problem with cold stating after the truck sits over night or long weekend.It will start and idle rough and have no treadle response for a minute or two.It will eventu… read more
dieseldoctorkev
dieseldoctorkev
power system tech 1
76 satisfied customers
GMC 7500: I have gmc 7500 got starting problem in morning.it
I have gmc 7500 got starting problem in morning.it starts after 3 or 4 atempt.and the intake heater light do not stay on as long as it use to be.what could be the problem… read more
63skater
63skater
Fleet Technician
Bachelor's Degree
6 satisfied customers
Freightliner FL70: I am working on an FL70, Freightliner truck.
I am working on an FL70, Freightliner truck. It has developed a cold start problem,to where it starts and dies after a few seconds. Then if it is cranked over and over again it starts back and runs th… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,939 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

6,648 satisfied customers

Owner at DJ Wilson

Wayne

Wayne

Journeyman

5,816 satisfied customers

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

Cat Man

Cat Man

Cat Engine Expert

10,344 satisfied customers

I am ASE Master Truck Certified.

Jeremy

Jeremy

Certified Truck/Bus Technician

2,756 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

Curtis B.

Curtis B.

Technician

2,130 satisfied customers

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

cumminsdr

cumminsdr

Mechanic

1,939 satisfied customers

All types of Cummins applications

Chris (aka-Moose)

Chris (aka-Moose)

Technician

791 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