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I have a 2002 GMC Bus with a Cat 3126 engine. It cranks but
I have a 2002 GMC Bus with a Cat 3126 engine. It cranks but won't start. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,180 satisfied customers
Wanting to change out a 3126A engine in my 1998 Freightliner
Wanting to change out a 3126A engine in my 1998 Freightliner FL 70 40 pin to a 2002 Freightliner Thomas school bus FL 65 3126B 70 pin wondering if the cab has the same wiring harness from the cab to t… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,431 satisfied customers
CAT Man, Looking at 2 Cabo express tachts for sale. One has
Looking at 2 Cabo express tachts for sale. One has twin C-9's with 2,180 hours with two new aftercoolers installed on 08/2018 along with full engine tune up. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,180 satisfied customers
99 bus VIN 1T7HR3B29Y1089987 with a 3326 CAT VIN 8YL28142
99 Thomas bus VIN 1T7HR3B29Y1089987 with a 3326 CAT VIN 8YL28142 need to know where oil pressure sending unit is located… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
10,180 satisfied customers
I have a 1954 gmc bus 4104 it a switch for the air bags man
i have a 1954 gmc bus 4104 it a switch for the air bags man or highway it works on man but not highway i canot find a part # or a name on it can you help … read more
Don
Don
fleet superintendent
Vocational, Technical or Trade Scho
1,635 satisfied customers
Second opinion] Issue: no-start Cat 3126 Engine: 2001 3126B
[Second opinion] Issue: no-start Cat 3126 Engine: 2001 3126B Caterpillar Engine / Serial number CKM24206 Vehicle: 2002 Thomas School Bus, front engine, flat nose bus Ambient temperature does not seem … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,738 satisfied customers
I'm having an intermittent no start issue with my cat 3126b.
I'm having an intermittent no start issue with my cat 3126b … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,738 satisfied customers
I need help with a CAT 3126 engine on a school bus. The
good morning. I need help with a CAT 3126 engine on a Thomas school bus. The engine turns on without any problem, but when the vehicle walks the accelerator locks up and gives a fault 84-1 Vehicle Spe… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,180 satisfied customers
2005 international 7600 c13 engine. It has some codes for
2005 international 7600 c13 engine. It has some codes for data link issues . But it has two codes SID. FMI 232. 14 232. 4 Which I believe are the problem for the engine not having power. Came in with … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,180 satisfied customers
I am working on a 2008 freightliner c-2 school bus and have
I am working on a 2008 freightliner c-2 school bus and have electrical issues. The 15 amp chassis acc. fuse keeps popping and I have no wiring diagrams showing what it powers. I disconnect a "shorting… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,431 satisfied customers
Need chassis wire diagram for bus SAF T liner it has a no
Need chassis wire diagram for Thomas bus SAF T liner it has a no start condition with key switch but I can run the engine from the back and it starts right up.… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,738 satisfied customers
I HAVE A 97 FRTLINER CENTURY CLASS, A/C CLUTCH WILL NOT
I HAVE A 97 FRTLINER CENTURY CLASS, A/C CLUTCH WILL NOT ENGAGE. THE GIVEN INFO: NEW YORK COMPRESSOR,NEW DRIER,NEW LOW SIDE SENSOR,NEW HIGH SIDE SENSOR,SYSTEM HELD VACUUM , THEN PUT IN 2 CANS FREON, NO… read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
I have a 1999 gmc with a cat 3126b. have a code 84-1 road
I have a 1999 gmc with a cat 3126b. have a code 84-1 road speed lost. @ around 20-30 mph ck eng. light will come on and engine will derate. replaced sensor and checked wiring to sensor. truck will not… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,180 satisfied customers
I have a question for you. I have a 98 Thomas bus with a carrier
I have a question for you. I have a 98 Thomas bus with a carrier dc 1053 split ac system. I have lost my high speed fan function on the pass. side. I heard there is a high speed fan relay separate fro… read more
Toby
Toby
Vocational, Technical or Trade Scho
107 satisfied customers
Are 1998 Freightlinner, Cummins M11 plus, has just had its
Are 1998 Freightlinner, Cummins M11 plus, has just had its air compressor replaced, along with a (New air dryer), problem is that it will not build air pressure ??… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,180 satisfied customers
Tobiz, I have a Thomas Bus that the bottom A/C compressor
Tobiz, I have a Thomas Bus that the bottom A/C compressor is not coming on. Clutch will not pull back and compressor is not engaging. System has 5 pounds 8 ounces of freon in it. The thermostat seems … read more
Toby
Toby
Vocational, Technical or Trade Scho
107 satisfied customers
Hello! I have a 1999 Rear Engine Thomas School bus. It has
Hello! I have a 1999 Rear Engine Thomas School bus. It has a CAT 3126B engine. Lately, the engine has to be sprayed with ether to start. Once it starts it runs fine. If I shut it off, it will restart … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,180 satisfied customers
Jeremy, The new multi-function switch did not fix the High
Jeremy, Good Morning Sir. The new multi-function switch did not fix the High Beam inop situation on the 2004 Thomas Bus. I could have sworn that was what it was, but that did not fix it. I still have … read more
Toby
Toby
Vocational, Technical or Trade Scho
107 satisfied customers
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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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