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Related Medium and Heavy Trucks Questions
Will not stay running. Sometimes will not turn over,
Will not stay running. Sometimes will not turn over, sometimes it will. I do not have a good ground at my crank relay and one of the relays attached the the fire wall, I believe it says it's a power m… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
254 satisfied customers
I have a 3126 cat I'm trying to start but I need wiring
I have a 3126 cat I'm trying to start but I need wiring diagram for ecm connector on truck side … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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Have a cat 3126 cranks but does not start or stays running i
hey i have a cat 3126 cranks but does not start or stays running i had a tech come by and scan it he said it he said it was the heui pump i replace but still same issue what else can i check for … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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Just bought a 1999 c6500 with cat 3126 and at545. it was
good day, just bought a 1999 c6500 with cat 3126 and at545. it was rigged with a push button to crank, ick. have made progress but cant identify what steering column wires should be doing what. in par… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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I have a 1996 mack ch613 with a e7, I went to a fuel station
i have a 1996 mack ch613 with a e7, I went to a fuel station to fuel up and when I went to turn it on it wouldn't start. it cranks but wont start and when I plug in the scan tool it wont communicate a… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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Pto high idle wont work, 102,000 kms 7.2 cat, 2006 gmc c6500
im a truck and coach shop, customer brought me this truck because pto wont work. ends up being cause the idle wont go up when you hit the switch. … read more
Jeremy
Jeremy
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Associate Degree
3,927 satisfied customers
1999 chevy c6500 with 3126 cat no start no check engine
1999 chevy c6500 with 3126 cat no start no check engine light with key cycled where is the pc fuse/ circut braker… read more
Jeremy
Jeremy
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I have a 2011 international 4400 auto trans that will not
I have a 2011 international 4400 auto trans that will not crank some times. I know when it is going to happen because when I try to idle up with steering wheel control it wont, then when I shut it dow… read more
Alex Olsen
Alex Olsen
auto/diesel/industrial
490 satisfied customers
3126 cat in a 1999 GMC topkick C6500, I made a swap and I
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Cat Man
Cat Man
Cat Engine Expert
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2000 STERING WITH C12 NO START GOING DOWN ROAD JUST SHUT OFF
2000 STERING WITH C12 NO START GOING DOWN ROAD JUST SHUT OFF LOOKING FOR WIRING DIAGRAM TO CHECK POWER AND GROUND TO ECM… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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I have a n14 cummins celect plus ran fine driver started it
Hello I have a n14 cummins celect plus ran fine driver started it speedo stuck ,engine light on, truck ran like crap would not rev . found speed sensor damaged changed it speedo worked ,engine light o… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
254 satisfied customers
I have a1998 c6500 3126 cat won't start and the check engine
I have a1998 c6500 3126 cat won't start and the check engine light won't come on when u trun the key on… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,530 satisfied customers
I have 2003 Chevy c6500 with a 3126e I need the starting wiring
I have 2003 Chevy c6500 with a 3126e I need the starting wiring diagram have no crank have power on 70 pin need to know input that control the crank output wire to starter relay I am also twenty five … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
254 satisfied customers
GM c6500: i have a 99 gmc c6500 with a 3126b cat in it we replaced
i have a 99 gmc c6500 with a 3126b cat in it we replaced the alternator and now it wont start spins orver good no start and no intake heater… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,530 satisfied customers
Hello there:I wonder if you could provide engine performance
Hello there: I wonder if you could provide engine performance wiring diagram for International truck 2002 Model SH4 Vin:1HTSLAAM72H404704, THE PROBLEM I'm HAVING HERE IS THAT engine turns over but it … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
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2000 GMC C6500 with a 3126CAT. Its my tow truck. We started
2000 GMC C6500 with a 3126CAT. Its my tow truck. We started having problems with it shutting down for no reason. We could always figure it out and get it to run but only for a few weeks and then we wo… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,530 satisfied customers
GMC C6500: Hello, I wanna have the BCM wiring diagram for my
Hello, I wanna have the BCM wiring diagram for my GMC Topkick C6500 2003 truck with a Caterpillar engine. I have a ground loss and need the diagram :-( If possible, I would have the computer data line… read more
tkman55
tkman55
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GM C6500: Changed starter 1998 GMC C6500 7.2 Cat Key switch
Changed starter 1998 GMC C6500 7.2 Cat Key switch want turn starter on. Connections checked and are right. Starter turns over fine. Not getting power to starter relay. Checked fuses, breakers, relays.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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Meet the Experts:

Daniel Wilson

Daniel Wilson

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Jeremy

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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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