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I have a 1999 Thomas School Bus with a Cat 3126. I recently
Second Opinion] I have a 1999 Thomas School Bus with a Cat 3126. I recently changed the fuel filters, a first for me. It started fine afterwards, just with a bit of a longer turnover (I used the 3-30s… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
I have a 1999 Thomas School Bus with a Cat 3126. I recently
I have a 1999 Thomas School Bus with a Cat 3126. I recently changed the fuel filters, a first for me. It started fine afterwards, just with a bit of a longer turnover (I used the 3-30s key on/off). It… read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,947 satisfied customers
I have a 1997 Beaver motorhome with the Cat 3126. It has
I have a 1997 Beaver motorhome with the Cat 3126. It has starting issues. … read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,947 satisfied customers
Man, I have a school bus with a 3126 cat engine. It quit
Hey cat man, I have a school bus with a 3126 cat engine. It quit running yesterday. I changed the fuel filters and it will start but once it runs through the fuel in the filters it dies again.… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
Do I need to worry about "air lock" when I do coolant flush
Do I need to worry about "air lock" when I do coolant flush on my 2003 Thomas Saf-T-Liner HDX?This is for the CAT 3126 you helped me with a few days ago. Also do you know where to drain it from? It so… read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
96 satisfied customers
Cat C7 in Thomas rear engine school bus Was running with a
Cat C7 in Thomas rear engine school bus Was running with a miss and very low take off power. Did cylinder cut out test. Injectors all read in low 30s except for cylinder 2 which read 24 I have an iden… read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,947 satisfied customers
Cat man I have a c13 in a International truck that before it
Cat man I have a c13 in a International truck that before it warms up will run ruff and miss and blow some white smoke I have a feeling it is the vva's it has no codes. when it warms up fully runs jus… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
WE HAVE A CUSTOMER WITH A 2006 C-7 CAT IN A SCHOOL BUS ESN:
WE HAVE A CUSTOMER WITH A 2006 C-7 CAT IN A SCHOOL BUS ESN: KAL84593 WITH ABOUT 6400HRS ON THE ENGINE. HIS COMPLAIN IS SEEMS TO MISS AND SMOKE A LOT AT START UP, EVEN WITH THE UNIT'S BLOCK HEATER PLUG… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I have a Cat 6.6 Acert engine serial number 66602665
I have a Cat 6.6 Acert engine serial number 66602665 Arrangement number(###) ###-#### I have a hard getting it start when cold. Block heater plugged in and glow plugs working and it still will not fir… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
Problems with my 1999 international 7.3 L last night in our
Hello problems with my 1999 international 7.3 L last night in our cold-weather at 5°. Bus started running poorly after complete warmup. Complete lack of horse power going up even slight hills. I pulle… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,756 satisfied customers
I have a 2004 freightliner m2 with c7 cat. Oil pressure and
i have a 2004 freightliner m2 with c7 cat. Oil pressure and water temp and tach willl not readout. They sweep up etc..when turning on ignition but fo no rrgister when running … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
I am having a problem with a 1999 CCC rear load garbage truck
I am having a problem with a 1999 CCC rear load garbage truck with a 3126 (7AS49610). The truck was shutting down when you tried to compact trash (like starving for fuel) and may start right back up o… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Freightliner school bus: 2003 freightliner chassis bus, with
2003 freightliner chassis bus, with Allison trans. (Allison 2000 Im thinking) After having the large plug at rear of trans unplugged, before i bought it, bus wont go into any gear. I did plug it in be… read more
Clayton
Clayton
Technician
Vocational, Technical or Trade Scho
627 satisfied customers
05 ford f650 cat 3126 engine stalled while warming up now brake
05 ford f650 cat 3126 engine stalled while warming up now brake light on and engine heater not working. wont start. tried unhooking batteries for half hour and hooking back up no help. my scan tool wo… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Hi, We have a Thomas Bus Vin Number:1T88R2D2331130447 We
Hi, We have a Thomas Bus Vin Number:1T88R2D2331130447 We needto know the type of engine it has(Cummins). And all the filters references, air , fuel, oïl, separator. List of all the parts needed to hav… read more
Toby
Toby
Vocational, Technical or Trade Scho
107 satisfied customers
I have a 2002 cat 7.2 / 3126. Need to replace the front crank
I have a 2002 cat 7.2 / 3126. Need to replace the front crank seal. Looks like I will need a puller to remove it. Will I need to heat this pulley to reinstall? What temp if I do.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Good Morning Jeremy,Having some electrical issues on a 2004
Good Morning Jeremy, Having some electrical issues on a 2004 Thomas Bus Model 590. No emeregency alarm (Hatch or rear window) No door left open alarm, No rear under seat passenger heater(s). All fuses… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
Tobiz, I have some more electrical issues on a 2004 Thomas
Tobiz, I have some more electrical issues on a 2004 Thomas Bus V.I.N. 1T7YR2C2941145168. I think most, if not all, are relay related. I found a few corroded relays and have ordered new ones. Here are … read more
Toby
Toby
Vocational, Technical or Trade Scho
107 satisfied customers
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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

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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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