Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
I have 2006 freightliner century with Detroit 60 12.7 truck
I have 2006 freightliner century with Detroit 60 12.7 truck was running good until 2 days ago, suddenly while I was cruising at 60 mph its start to sputter / jerk fells exactly like cars with distribu… read more
Expert
Expert
6,912 satisfied customers
Having a ac issue. Same ine as the post I was reading, fault
Hi there, having a ac issue. Same ine as the post I was reading, fault code 1:8 613_14A looking to see what was posted but seems someone posted every problem from fault code 1 through 15 … read more
Mike
Mike
Triage Tech/Shop Foreman
Associates
266 satisfied customers
I have a 1996 International dump truck. It has a M11
Hi I have a 1996 International dump truck. It has a M11 Cummings engine. When driving I go through all gears fine but after I reach 2100rpm or 45 mph it drops to 1500rpm and will not go over 35 -40 mp… read more
Mike
Mike
Triage Tech/Shop Foreman
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I have a Mack 2011 with mp8 it shakes badly when it reach
I have a Mack 2011 with mp8 it shakes badly when it reach above 50 I have change the fuel filter housing and still the same I have to gear down from 10 to 9 speed because the vibration is really bad what can be the possible problwm … read more
Mike
Mike
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2014 kenworth. P1723 code. Replaced gas pressure sensors and
2014 kenworth. P1723 code. Replaced gas pressure sensors and complete engine wiring because was getting an electrical short code. Just replaced harness and reset codes and it drove great. Got it home,… read more
Mike
Mike
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I have a 2011 Peterbilt 367 with a Cummins ISX. When driving
When driving the compressor starts and stops normal. When idling compressor will not start building air unless engine speed is increased to 1500 RPM or more, and sometimes several attemps are necessary. If the truck is shut down over night when compressor is still in the "building air mode" it will continue to build air until maximum (130psi) is reached the the next day. … read more
Mike
Mike
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I have a problem with a 2012 Cascadia, I haven't been able
Hi everyone,I have a problem with a 2012 Cascadia, I haven't been able to solve it and I think I am up to the point of asking for help.This truck got to me with the complain that transmission was stuc… read more
Daniel Wilson
Daniel Wilson
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10,347 satisfied customers
Have a 2003 Sterling enclosed car hauler that was built by
Hey I have a 2003 Sterling enclosed car hauler that was built by boydstun. It's a 10 speed & has a C12 in it. I bought the truck from wagoners trucking they had it sitting almost 7 years. I have gone … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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08 Kenworth T300 cummins engine / no codes / when truck is
08 Kenworth T300 cummins engine / no codes / when truck is in neutral and you push on accelerator rpms will only go to 1500 rpms , but you can run the rpms up with the cruise or if you put in gear and… read more
Geoff
Geoff
BS
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I am having trouble diagnosing a 3406e on a kenworth
I am having trouble diagnosing a 3406e on a kenworth chassis. It is going full fuel (even past governer) at random. Usually when you touch the accelerator but sometimes when you dont. It will shut off… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,142 satisfied customers
2006 Freightliner Classic XL- I bought this truck last spring
2006 Freightliner Classic XL- I bought this truck last spring with 695000 miles and not knowing any history of repairs. I have replaced the EGR and the Vpod twice. The problem is that when running up … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,791 satisfied customers
1: When crusing on the freeway and I try to just maintain a
1: When crusing on the freeway and I try to just maintain a certain speed, it gets real jerky back and forth when I let on and off the gas pedal. When using the cruise control, I dont have any problem… read more
spankyjr1
spankyjr1
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Vocational, Technical or Trade Scho
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2005 cat c15 with a 3 pedal autoshift, the rpm raven and goes
2005 cat c15 with a 3 pedal autoshift, the rpm raven and goes to like 21 for a second then goes back to normal while driving on the freeway. the autoshift got a new xy shifter new wire harness and a n… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
Hi, I am replacing the 6bta engine in my truck with a 6cta
Hi, I am replacing the 6bta engine in my truck with a 6cta after cooled 275hp engine manufactured in 2002. The engine is to be coupled to the existing MTB 643 Allison transmission which has direct dri… read more
Wayne
Wayne
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2004 international 9200i ZF meritor freedomline automated transmission
2004 international 9200i ZF meritor freedomline automated transmission problem. Occasionally I get the system malfunction (SM) message but it's brief and always goes away. The last few days while driv… read more
spankyjr1
spankyjr1
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Vocational, Technical or Trade Scho
420 satisfied customers
I have a 2006 peterbilt 378 with c15 engine, my question is
I have a 2006 peterbilt 378 with c15 engine, my question is when I'm driving my truck at 13 rpms going on 9 gear or 10 gear I have a short circuit for 2 or 3 sec's and then goes away and everything is… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,142 satisfied customers
Hi. I got a 2004 sterling acterra. The curise control will
Hi. I got a 2004 sterling acterra. The curise control will not power up all the way. It only goes to 8 rpm. While driving it will not come on at all. Can some one please help me… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,142 satisfied customers
My semi will rev up without warning. I first noticed it after I had se
My semi will rev up without warning. I first noticed it after I had set the air brakes, it would jump up 5 to 600 RPM and drop back down. Sometimes it would rev to 1100 RPM and stay they. I was always… read more
spankyjr1
spankyjr1
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Vocational, Technical or Trade Scho
420 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

10,347 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,142 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

3,791 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,735 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

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All types of Cummins applications

Curtis B.

Curtis B.

Technician

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

Chris (aka-Moose)

Chris (aka-Moose)

Technician

280 satisfied customers

16 years of experience

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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.

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