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 c15 it has a small miss at times like a fluttering
Hi i have a c15 it has a small miss at times like a fluttering also the jakes are the same i have low boost and it just dont respond. Swapped ecms external harness boost and atmosphere sensors did cyl… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
Just looking for info. I have a Cummins CM870 and climbing
I have a Cummins CM870 and climbing step long grades in high abiant air temp i get a derate. just trying to find out if i purchase insite will it show me on the screen that i went into derate and why it happens. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,955 satisfied customers
1997 peterbilt n14 celeste plus. 1997 peterbilt cummins n14
Chasing a problem for several years. Seems to me when I have an injector starting to miss the ecm will derate engine power.im not sure if this is a derate or just a power loss. … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
420 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
4,955 satisfied customers
CENTURY 2000 WITH N14 ENGINE HAVING TROUBLE STARTING, ONLY
CENTURY 2000 WITH N14 ENGINE HAVING TROUBLE STARTING, ONLY STARTS UP WITH A BIT OF STARTING FLUID THEN ITS OK, WITH A BIT OF LOSS OF POWER, ECM READS ON SCANNER Active Instrument Cluster Ambient Air T… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,955 satisfied customers
1999 Celect: Power lacking in all gears. when RPMs get
1999 Celect: Power lacking in all gears. when RPMs get around 1700 or higher it catches power and go. (harder to catch in 8 gear sometimes). with a semi-heavy load it never catch. Fuel lines clear … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,955 satisfied customers
We put a Cummins N14 celect plus 525 in a 2010 Kenworth. We
We put a Cummins N14 celect plus 525 in a 2010 Kenworth. We got the wiring harness and datalink box all wired up and everything works fine, all the gauges, switches jakes everything. But when driving … read more
spankyjr1
spankyjr1
Journeyman
2,873 satisfied customers
I have a 1998 9300 international with an n14 redtop. I
I have a 1998 9300 international with an n14 redtop. I recently replaced accesory drive bushing and seal. I had the fuel pump and filter removed and all lines associated in order to do so. Now I'm get… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
2001 freightliner century with n14. Truck seems to be in
2001 freightliner century with n14. Truck seems to be in limp mode. No check engine light. My rpm will not go over 1500rpm. I need help fixing this.… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
I have a 99 Peterbilt 377 with the Cummings n14 plus engine
I have a 99 Peterbilt 377 with the Cummings n14 plus engine after trk warms up the idle steady goes higher and higher. If you tap the throttle pedal it will return to 600 rpm then immediately start cl… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,955 satisfied customers
I have a n14 Cummins with code 123 low voltage to intake
I have a n14 Cummins with code 123 low voltage to intake manifold pressure sensor and engine is drating what could be problem… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,955 satisfied customers
2003 Volvo 660. Cummins N14. Truck hesitates and stutters
2003 Volvo 660. Cummins N14. Truck hesitates and stutters really bad upon any load at all. It's somewhat intermittent as to how long or how violent but it consistently does it. It smoothes out after a… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,955 satisfied customers
freightliner fl80: we have a 1999 fl80 with a 45831397 cummins
we have a 1999 fl80 with a 45831397 cummins with a 8.3 caps injection pump - we have 18psi to the pump - 175 psi at the test port on the pump and able to only get 10 lbs of boost- we pinched the line … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,955 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
4,955 satisfied customers
Cummins N14 Celect plus .Missing and lost of horse power
Cummins N14 Celect plus .Missing and lost of horse power ..Problem started with white smoke and number 6 injector receives signal but doesn't return it fault code 325 I paid a guy to hook computer up … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,955 satisfied customers
N14 Cummins Celect Plus out of 02 T2000 KW can you show me
N14 Cummins Celect Plus out of 02 T2000 KW can you show me how test an injector to make sure is getting proper power output from ecm sometimes while driving injector will cut out specially if I let of… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
I have a Cummins N14 Celect plus on a freightliner FLD, I have
I have a Cummins N14 Celect plus on a freightliner FLD, I have checked fault codes using quickcheck and it shows me 254. there is no voltage at the fuel shut off soleniod when key is on, but if i remo… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
my truck just had an engine controler installed about a mounth
my truck just had an engine controler installed about a mounth a go. now when i slow down for a town my speed ometer drops to o but am moving down the road. As i incress my speed the rpms only will go… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,955 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

4,955 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