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 c9.3 with no active codes which keeps stalling when
Hi, i have a c9.3 with no active codes which keeps stalling when on full lock to the right and only when throttle is applied … read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,306 satisfied customers
Cummins B6.7 active fault code 3383 EGR system data valid
Cummins B6.7 active fault code 3383 EGR system data valid but above normal operating range. Regen system disabled, resulting in DPF differential pressure and high soot load when the truck won't regen … read more
NicholasM1019
NicholasM1019
Diesel Technician
GED
2 satisfied customers
Have three codes p228d and c2505 and p1496 and low boost 25
Have three codes p228d and c2505 and p1496 and low boost 25 psi max … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
4,081 satisfied customers
I have a 2013 peterbilt 389 with an MX 13 EPA10. I deleted
Hi, I have a 2013 peterbilt 389 with an MX 13 EPA10. I deleted the truck back in 2017 and all was great until … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
4,081 satisfied customers
We have a 2006 series 60 here at shop has egr deleted and
We have a 2006 series 60 here at shop has egr deleted and vgt. The engine acts like it's turned up to Like 800 plus hp owner says it started chugging and running really hard . Driver said it was a 450… read more
Roy Belding
Roy Belding
7,517 satisfied customers
Andy, Im having issues with cummins engine.Unit number is
Hi Andy, Im having issues with cummins engine.Unit number is ***** It is a 2016 Freightliner 108 SD with ISL9 330 Cummins Issue: sputters at low RPMs (1600 or below) Code: *FMI 18 SPN 3058 (active) En… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
4,081 satisfied customers
Any look on the fix. Luck. Code mid128 sid232 fmi4 replaced
Code mid128 sid232 fmi4 replaced pedal, intercooler, boost, oil pressure, oil pressure/temp, fuel temp and the one on the side of oil pan code pops up after truck running for about 3-4 hrs after shutting it off it will go away after 30min to an hour then a few hours later it comes back on and I lost boost again, it has egr delete and Ecu flashed like 6 months ago… read more
AMANDEEP MAHERU
AMANDEEP MAHERU
1 satisfied customers
We deleted the exhaust system on a 2012 ford f550b fire
we deleted the exhaust system on a 2012 ford f550b fire truck and installed a tuner to keep lights off, truck ran great for a couple months but now it has died an d will not restart no codes wont star… read more
Chris (aka-Moose)
Chris (aka-Moose)
Technician
Vocational, Technical or Trade School
353 satisfied customers
I have a C13 in a fire truck that the ECM failed, i replaced
I have a C13 in a fire truck that the ECM failed, i replaced the ECM, had a private shop flash the new ECM as the Kenworth shop did not have a tech available. the unit was having problems with regen s… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
I was wondering if you could help me get the resolution of
I was wondering if you could help me get the resolution of one of your previous customers which had asked for your help. Online, I found the conversation between the customer and you and the way he ex… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
Replaced my ECM an now my turbo Squeels in idle an when
Replaced my ECM an now my turbo Squeels in idle an when driving it has low power until I get my rpm up to 1500 … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
I have a peterbuilt with a Cummings 871 that is only getting
I have a peterbuilt with a Cummings 871 that is only getting 31 psi boost, it has a new rebuilt engine just done last week, all new injectors, the emissions system is deleted, new air to air cooler, n… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Does anyone did a full egr dpf delete, and switched from a
does anyone did a full egr dpf delete, and switched from a twin turbo to single turbo on a international prostar cat c13 lee serial nr, the buttons on the steering wheel related with the engine don't … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I recently retuned my MP8 deleted the DPF and egr and gave
I recently retuned my MP8 deleted the DPF and egr and gave it 48 more hp it now doesn't want to pull can hardly make 100 km per hour loaded … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 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
5,234 satisfied customers
Cummins isx lots of actuator problems was originally
Cummins isx lots of actuator problems was originally breaking actuator bolts that hold actuators together. Timing actuator on 123 cylinder . Have replaced 123 injectors by mechanic new relief valves o… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Sterling: Robert,I have a Cummins 6.7 in a 2007 Sterling
Hi Robert, I have a Cummins 6.7 in a 2007 Sterling truck. Complaint - limp mode intermittent problem. I took it on a test drive and noticed that it surged/ hesitates at cruising speed. I noticed that … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Hello, We purchased a 2003 Ford F-350 Super Duty Diesel Lariat
Hello, We purchased a 2003 Ford F-350 Super Duty Diesel Lariat about a year ago. We use it to pull our 5th wheel trailer, and have put on about 3500 miles. Mileage now is about 130,000. We have notice… read more
sevn103
sevn103
232 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