Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
I have a cummins isb with the following codes 3543, 3582,
I have a cummins isb with the following codes 3543, 3582, 3714, 3712, 3748(inactive). ENGINE SERIAL NUMBER IS ***** The def is bought in 2 1/2 gallon jugs and is run in several trucks with no issues. … read more
NicholasM1019
NicholasM1019
Diesel Technician
Vocational, Technical or Trade School
7 satisfied customers
I have a isx Cummins cm2350 serial 79636125 I have a 3712
I have a isx Cummins cm2350 serial 79636125 I have a 3712 code and a 3714 derate I can not get it out of derate… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
4,296 satisfied customers
Well I have a 99 bluebird school bus that needs a ecm. can I
well I have a 99 bluebird school bus that needs a ecm. can I use any 5.9 cummins isb ecm from that same year or is it specific to the truck. Thanks … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
430 satisfied customers
I have two Bluebird school buses with 6.7 cummins engines
I have two Bluebird school buses with 6.7 cummins engines that keep returning with codes 3582 and 3543. These buses are used for both routes and longer trips for player game buses. Have replaced badly… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
430 satisfied customers
Have a 2015 isb 6.7. l have code 125 and only makes 10 psi
Hi Have a 2015 isb 6.7. l have code 125 and only makes 10 psi boost. It is always in air fuel derate even before code sets. New turbo, actuator, intercooler in. No leaks found and no other codes … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
I have a 2009 Blue Bird school bus 6.7 isb bus. Will run
I have a 2009 Blue Bird school bus 6.7 isb bus. Will run most of route and may shut down. You can hand prime the sustem at the fuel seperator and cyle the ign switch and most of the time it will start… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
430 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 Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
430 satisfied customers
We need to find the fuse box for the bluebird bus. Bluebird
installed new starter, now nothing works. boss says it's probably a fuse but we cannot find the fuse box… read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,571 satisfied customers
I have a 2009 bluebird school bus with cummins 6.7 isb it
hi i have a 2009 bluebird school bus with cummins 6.7 isb it shutdown during the route an would not restart, the fault code was 559 rail pressure not meeting command, we replaced the rail sensor, chec… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
I have a bus on the side of the road with the following
Hello,I have a bus on the side of the road with the following codes:2011 Ford F650 Cummins ISB 6.7 2803712 - Red 2771 - Amber 3718 - Amber 3714 - Amber 3682 - AmberThe bus is in engine de-rate and can… read more
Roy Belding
Roy Belding
7,582 satisfied customers
I personally own a 1994 Bluebird School Bus, forward engine,
I personally own a 1994 Bluebird School Bus, forward engine, 5.9 Cummins, 24-seater, and I've got a problem with the front heaters. On the front dash (below the door opener), there are two switches fo… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
I have a 200 hp ISB Cummins in my Bluebird flat nose FE. When
I have a 200 hp ISB Cummins in my Bluebird flat nose FE. When a go down hill it will give me all the speed and power I ask for but going up hill it simply dies out, not shifting down (Allison automati… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
1999 freightliner fl60 5.9 cummins need wiring diagram dont
1999 freightliner fl60 5.9 cummins need wiring diagram dont know what relays power what but did find have lost ground for fuel intake heater ect so would like to see where ground is located for these … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
I have a 1999 Bluebird bus with a cummins 5.9. The yellow service
I have a 1999 Bluebird bus with a cummins 5.9. The yellow service engine light is on. The only code is sid 237 fmi 11 just says start enable device. Not sure where to start.… read more
Joe
Joe
Service Technician
Associate Degree
854 satisfied customers
W0rking on a 2009 Bluebird bus with a Cummins 5.9 ISB. Intermittent
W0rking on a 2009 Bluebird bus with a Cummins 5.9 ISB. Intermittent no start with code 627 2. Any ideas where to start looking… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Cummings ISB 240 Engine!When at full power we receive the
Cummings ISB 240 Engine! When at full power we receive the 2500 RPM and then takes a second or so and the rpms drop and it starts to smoke (blue diesel smelly). Its in a bus and has some interesting m… read more
Expert
Expert
2002 freightliner with cummins ISB 245. have an active code
2002 freightliner with cummins ISB 245. have an active code for 5V supply voltage to ECM. all the sensors that run off of the 5 V supply are fine and throwing no codes for them. engine is derating and… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
2001 Bluebird School Bus at my shop that starts and dies. 5.9
2001 Bluebird School Bus at my shop that starts and dies. 5.9 ISB, VC44 pump replaced for a stall/no start, ran 2 days fine and started this start/stall on a cold start after that. Will stay running w… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
4,296 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

4,737 satisfied customers

Owner at DJ Wilson

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Cat Man

Cat Engine Expert

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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

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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

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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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