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 C7 Cat that's throwing me for a loop. It's a KAL
I have a C7 Cat that's throwing me for a loop. It's a KAL prefix and in a c6500 dump truck. Engine runs great on start up after sitting for an hour or more but if you idle it up, within a few minutes … read more
SteveR
SteveR
Shop Manager
High school
13 satisfied customers
I have low boost on my C15 Acert. Caterpillar engine. 2005
I have low boost on my C15 Acert. Caterpillar engine. 2005 BXS … read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
95 satisfied customers
2009 BLUE BIRD C7S09493, WAS DEALING WITH SOME CODES, I
HELLO, 2009 BLUE BIRD C7S09493, WAS DEALING WITH SOME CODES, I BELEIVE IVE GOT THEM FIXED. I NOTICED ON CAT ET THAT THE TURBO BOOST PSI WASNT GETTING ANY HIGHER THAN 20PSI AND BAROMETRIC PRESSURE WAS … read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
95 satisfied customers
I have a 2004 C-15 mbn with a PDI turbo on it. When pulling
Hello I have a 2004 C-15 mbn with a PDI turbo on it. When pulling a hill the turbo will stall at around 1400 rpm and have to shift. Any Idea what would cause this problem? … read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
95 satisfied customers
We have a c13 cat with low power. we have replaced boost
we have a c13 cat with low power. we have replaced boost sensor, verified fuel pressure (85psi) at wot. the truck originally came in with center section of exhaust manifold and turbo burned out. drive… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I HAVE A 2004 C7 ENGINE SERIAL NUMBER. KAL11194 THE CURRENT
I HAVE A 2004 C7 ENGINE SERIAL NUMBER. KAL11194 THE CURRENT ISSUES ARE … read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
95 satisfied customers
I HAVE AN 07 INTERNATIONAL 4300 THAT WILL REV UP IN NEUTRAL
I HAVE AN 07 INTERNATIONAL 4300 THAT WILL REV UP IN NEUTRAL OR PARK, BUT IN GEAR IT TAKES MINUETS TO REV UP … read more
Scott Anthony
Scott Anthony
Master Technician
HS Diploma
3 satisfied customers
Cat Man, I was talking to you last night about that 2004 cat
Hi Cat Man, I was talking to you last night about that 2004 cat c15 that was pressurizing the cooling system and causing it to spit out anti freeze. Is it possible that there could be a issue with tha… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Cat Man I have a 2015 389 Pete 3406 E cat motor it has a
Cat Man I have a 2015 389 Pete 3406 E cat motor it has a miss all the time but it get worse as the day goes on and it seems to be worse at 1600 and 1700 rpm it has six new remain cAt injectors and tha… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Man i have a 2004 mbn cat motor im only getting 28 pounds of
Hey cat man i have a 2004 mbn cat motor im only getting 28 pounds of boost is this correct … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Cat Man, I've got a 6ts feels like its low on power. Only
Cat Man, I've got a 6ts feels like its low on power. Only building 10-12 psi on boost. what should it run full load? havent't checked my fuel psi while driving yet but sitting still its running 75 or … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
C15 acert will not grt over 20 psi boost new tubos new
c15 acert will not grt over 20 psi boost new tubos new injectors 100psi fuel pressure no leak at charge air cooler new boost sensor … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Cat Man, I have a 3406 3ZJ54893 that pulls strong until
Cat Man, I have a 3406 3ZJ54893 that pulls strong until about 1600-1700 rpms then just slowly pulls to 2000 rpm. We changed the fuel filters but that didn't change anything. Where should I go next? Al… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
i need a good cat man i have c7 cat kal32843 will run 10 to
i need a good cat man i have c7 cat kal32843 will run 10 to 20 miles and start smoking and loosing power fuel smoke white icp was under desired by a few pounds replaced psi pump still had same problem… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
Hallo Cat man, We have some problems with a C9 engine. It
Hallo Cat man, We have some problems with a C9 engine. It runs perfectly when no load but not when putting some load ( a turbine ) when engine is at 1800 RPM. The RPM drops a lot when under load. When… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Hi Cat Man, Iam working on 3406E Cat serial number 5EK78587.
Hi Cat Man, I'am working on 3406E Cat serial number 5EK78587. The engine runs really nice and it is able to get up to full RPM, the problem is the engine is making little to no boost ( 0.7 to 1 lbs) a… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
HI, I have a 1998 International 9700 with a series 60 12.7L.
HI, I have a 1998 International 9700 with a series 60 12.7L. it runs ok at idle and in low RPMs, but when im goin at about 35 mph it seems like it is running out of fuel for a few seconds then it runs… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
we have 2006 freightliner business class M2 with C9 caterpillar
we have 2006 freightliner business class M2 with C9 caterpillar motor. Once it warms up (over 150 degrees) starts to blow heavy white/grey smoke. Worse under load and higher RPM's. No check engine lig… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 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

6,062 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

10,344 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

5,115 satisfied customers

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

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

1,947 satisfied customers

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

cumminsdr

cumminsdr

Mechanic

1,886 satisfied customers

All types of Cummins applications

Chris (aka-Moose)

Chris (aka-Moose)

Technician

641 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