Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
We bought a school bus from an auction a few months back.
Hello! We bought a school bus from an auction a few months back. Other than needing an alternator, it drove home like a rocket no problem. It has an Allison AT545 transmission and lately it's been act… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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I have 2000 FL 70 with a cat 3126 and Eaton autoshift tCNNhe
Hello I have 2000 FL 70 with a cat 3126 and Eaton autoshift tCNNhe truck only has 60,000 miles I bought the truck a year ago and have problems with the transmission. Had it towed into Freightliner and… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
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431 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
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International with maxed out oil psi gauge. buzzer going off
international with maxed out oil psi gauge. buzzer going off an have active codes. … read more
Mike Mcmillan
Mike Mcmillan
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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
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2004 International DT466 in a 3800 school bus. Engine will
2004 International DT466 in a 3800 school bus. Engine will crank, but will not start. i have service maxx software, but I cannot get it to connect to the ECM. I don't know if I possibly have a ECM pro… read more
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Cummins 6.7L ISB in a Bluebird bus. Code 1894 keeps coming
Cummins 6.7L ISB in a Bluebird bus. Code 1894 keeps coming up. "VGT actuator driver circuit-abnormal update rate. No communications on the J1939 data link between the engine ECM and the smart VGT cont… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 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
Engine is Cat C7 in 2006 F650, Vin: 3frnw66x56v235167, 67000
Engine is Cat C7 in 2006 F650, Vin: 3frnw66x56v235167, 67000 milesEngine starts up and runs for a few minutes then gradually runs rougher and stalls as though it is running out of fuel or pulling air.… read more
Cat Man
Cat Man
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Cummins 6.7L ISB, #73621214, Need help locating the coolant
Cummins 6.7L ISB, #73621214, Need help locating the coolant level sensor signal wire. We believe it is the J2 connector #35, but want to be sure. If so, which connector is J2?… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
It is 2006 international school bus, vt365, cranking not
It is 2006 international school bus, vt365, cranking not start … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
2002 Amtran School Bus with DT466. Unit will crank but will
2002 Amtran School Bus with DT466. Unit will crank but will not start in cold weather. Unit has new 8D battery and all 6 fuel injectors.… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
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i have a code reading flash 352sid 232 fmi 04 low voltage
i have a code reading flash 352 sid 232 fmi 04 low voltage at engine position 5v supply cant find what it is… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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yes I have a 2011 QSB with no codes will not start. have 350
yes I have a 2011 QSB with no codes will not start. have 350 rmp while cranking 7500 lbs of fuel pressure cranking. no air in fuel system. engine start of a spit second then dies. if you continue to c… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
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I have a 2001 Bluebird bus with a 5.9 cummins engine . The
I have a 2001 Bluebird bus with a 5.9 cummins engine . The us recently stopped running during a bus route . Driver said she was driving and bus engine just shut down . No warnings nothing . She pulled… read more
Wayne
Wayne
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Vocational, Technical or Trade Scho
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Ford F-650: I have a 2003 F650 with a 5.9 cummins intermittent
I have a 2003 F650 with a 5.9 cummins intermittent stalling, no throttle response and hard restart. has code 73 aux. water pump. makes no sense.… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
I have a bluebird school bus with a cummins 5.9 ISB 230 electronic
I have a bluebird school bus with a cummins 5.9 ISB 230 electronic the engine serial is 45830598CPL2572. The engine starts then derates right away then turns off. I disconnected the intake manifold se… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
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Have a 1999 freightliner with cummins 5.9 ISB starts fine
Have a 1999 freightliner with cummins 5.9 ISB starts fine but after I accelerate a while check engine lights up and engine lacks power . It idles fine but when you want to drive off there goes the che… read more
FIX-IT
FIX-IT
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Meet the Experts:

Daniel Wilson

Daniel Wilson

4,737 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

4,297 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

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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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