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
Cat Diesel wont start ON cold morning even if wait to start
Cat Diesel wont start ON cold morning even if wait to start light goes off … read more
Mike
Mike
Triage Tech/Shop Foreman
Associates
211 satisfied customers
I have a 2010 C2 bus with a MBE 926 engine with ECU 128, SLD
I have a 2010 Thomas C2 bus with a MBE 926 engine with ECU 128, SLD 155, fail 02. … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
Cat 3126, '05' I am having a hard start problem once the
Cat 3126, '05' I am having a hard start problem once the engine warms up a little, with a vlt mtr on the heat solenoid it shows that after a little while of running, during restart the system holds th… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,045 satisfied customers
School bus 2016 Cummins isb 112,000km Came in with codes
School bus 2016 Cummins isb 112,000km Came in with codes 2976 , 3545, 3559, 3712, 3714, 4251 and a power loss issue stemming from Aftertreatment issues. A tech from this website and I determined it wa… read more
Mike
Mike
Triage Tech/Shop Foreman
Associates
211 satisfied customers
2010 Maxxforce DT Intermittent low power no codes Replaced
2010 Maxxforce DT Intermittent low power no codes Replaced turbo with a known good one Cleaned DPF Cleaned EGR valve.Still giving issues, will drive on its bus route just fine for 4-5 days and then no… read more
Mike
Mike
Triage Tech/Shop Foreman
Associates
211 satisfied customers
2010 maxxforce dt hard start cold. wait to start light works
2010 maxxforce dt hard start cold. wait to start light works and stays on for about ten seconds.every once in a while while wait to start light is on there is a electrical sound like a relay buzzing o… read more
Mike
Mike
Triage Tech/Shop Foreman
Associates
211 satisfied customers
I've got few suggestions from you before in some power
Hello. I've got few suggestions from you before in some power issues I had on my 2009 C15 Acert. Was satisfied with the suggestions I got from you. Got a different issue going on. White smoke comes ou… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,045 satisfied customers
I have a Cat C-13 ESN: KCB62827 This unit has fault codes
Hello I have a Cat C-13 ESN: KCB62827 This unit has fault codes 173-0 284-6 dose any one have the code description and trouble tree. also sensor locations.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,045 satisfied customers
This question is Man who I have contacted before about my
This question is for Cat Man who I have contacted before about my 2000 Freightliner FL70 with a CAT 3126. I originally contacted Cat Man because the 3126 would not start when the engine was cold, but … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,045 satisfied customers
07 Pete 330 ISC common rail pre EGR. When outside temp is
07 Pete 330 ISC common rail pre EGR. When outside temp is below 50 degrees, engine will start and run 5 sec. to 5 mins die, starts right back up till engine temp warms up to about 80 degrees and will … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
I have a Cat C-9 ESN SAP96554 This unit came in with low
Hello I have a Cat C-9 ESN SAP96554 This unit came in with low power, in the status flag window. it says turbo protection derate Active. dose any one have any info on why this is. or what could cause … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,045 satisfied customers
I have a Cat C-7 ESN: WAX00791 this unit had had a
Hello I have a Cat C-7 ESN: WAX00791 this unit had had a history of electrical sensor issues, We have replaced the IAP and EOP sensor for faults related to sensor voltages high, We also have replaced … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,045 satisfied customers
where are the engine pre heaters located on a cat 3126 model
where are the engine pre heaters located on a cat 3126 model year 2001.Its in a school bus?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,045 satisfied customers
I have a 97 Cat 3116, when the temp is cooler the intake heater
I have a 97 Cat 3116, when the temp is cooler the intake heater cycles on for several seconds then turns off before starting but after starting as it sucks in cold air the intake heater turns back on … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,045 satisfied customers
My freightliner bus with a Cummings engine and allison tranny
My freightliner bus with a Cummings engine and allison tranny has no low end power. if we try and go up a hill from a start the gas pedal goes to the floor and the RPM's don't move. if we put 2 by 4 a… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,458 satisfied customers
blue bird school bus: JA answered part of this queston RE:
JA answered part of this queston RE: Caterpillar C7 Acert engine (about 2009) cooling fan: Engine is in a full size school bus. Cooling fan operation seems erratic. It comes on between 140 and 170 deg… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,045 satisfied customers
I have a 2000 Peterbilt 379 with a c-15 cat. Has no throttle
I have a 2000 Peterbilt 379 with a c-15 cat. Has no throttle responce via pedal or cruise switch. Hooked up ET and no active, inactive or logged event codes. Can watch the accel position through ET an… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,045 satisfied customers
Need help diagnosing a high exhaust gas temp derate on a caterpillar
Need help diagnosing a high exhaust gas temp derate on a caterpillar C7. What would cause high exhaust gas temp that would go high enough to derate the power. All this happens with an unloaded truck s… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,045 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

10,045 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