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Related Medium and Heavy Trucks Questions
I have a 2002 gmc c-6500 with a cat 3126 engine. I am
i have a 2002 gmc c-6500 with a cat 3126 engine. I am looking for a wiring a schematic for the charging system, the ECU, and the instrument/dash cluster.… read more
Jeremy
Jeremy
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I have a gmc 7500 with a cat that has a electrical problem
I have a gmc 7500 with a cat that has a electrical problem to the engine. Do you have a real good gmc mechanic available at this time. … read more
Daniel Wilson
Daniel Wilson
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2002 GMC 7500 7.2 DSL, with CAT 3126, flashing MIL, Code 58,
2002 GMC 7500 7.2 DSL, with CAT 3126, flashing MIL, Code 58, loss of power, where do we go from here?… read more
Cat Man
Cat Man
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I have a 1998 gmc top kick with a cat 3126 motor will not
I have a 1998 gmc top kick with a cat 3126 motor will not start unless I manually prime then runs and stalls after the primed fuel runs out sometimes stays running driving tell you take a corner or go… read more
FIX-IT
FIX-IT
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I have a 2003 GMC 7500 with a 3126 cat, truck came in no
Hello, I have a 2003 GMC 7500 with a 3126 cat, truck came in no start no crank, could not communicate with ecm, checked power and grounds found all ok, replace ecm, now I can communicate with ecm and … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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I installed a different ECM on my 3126 cat and it still
I installed a different ECM on my 3126 cat and it still reads no ECM detected on scanner, just wondering what pins go to plug underneath the dash… read more
Cat Man
Cat Man
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I have 3126b cat some time driving i would get 70 miles and
Hi My Name is ***** ***** have 3126b cat some time driving i would get 70 miles and it would drop to 55 mile this is happening every day new turbo no code … read more
Cat Man
Cat Man
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I am working on a 1998 Gmc T7500 Truck with a V8-6.0L
I am working on a 1998 Gmc T7500 Truck with a V8-6.0L engine. Cylinder heads were removed together with pistons.I need the reassembly torque specifications for the heads and connecting rods. Thanks fo… read more
Curtis B.
Curtis B.
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I am looking at a 1999 c6500 GMC truck with a CAT 3126 engine
I am looking at a 1999 c6500 GMC truck with a CAT 3126 engine (SN 7a531378). Are there any known problems with this engine? Currently the engine has 86,000 miles.… read more
Cat Man
Cat Man
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1999 GMC C7500 3126 Cat. Occasional hard start. "No ECM
1999 GMC C7500 3126 Cat. Occasional hard start. "No ECM detected" when hooking up scanner.… read more
Cat Man
Cat Man
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GMC c6500: I have a 2000 gmc c6500 and no start has a 3126
I have a 2000 gmc c6500 and no start has a 3126 cat. I also loose power to the pink wire at the brake light interface module can you tell me where it is located… read more
Andy
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Vocational, Technical or Trade School
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hAVE A 99 gmc 6500 WITH A 3126 CAT. GETS WARMED UP AND SPEED
hAVE A 99 gmc 6500 WITH A 3126 CAT. GETS WARMED UP AND SPEED WILL DERATE TO 30 35 MPH AND WILL NOT PICK IT UP. eVEN COLD IT DOESNT SEEM TO HAVE MUCH POWER AND 55 TO 60 TOP END.… read more
Cat Man
Cat Man
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i have a 2003 fl80 with a 3126 cat motor serial no. ckm 55015
i have a 2003 fl80 with a 3126 cat motor serial no. ckm 55015 motor droped a valve going to replace found a 2000 gmc with a 3126 cat serial no. 8yl83373 mine is a 250 hp 3126e the other a 3126b it is … read more
Cat Man
Cat Man
Cat Engine Expert
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2000 GMC topkick with a 3126 cat engine. Shut off while running,
2000 GMC topkick with a 3126 cat engine. Shut off while running, will not restart. Checked voltage to ecm. 12 volts to pins 52 an 53 .I have 1200 psi. pressure in high pressure manifold while cranking… read more
Cat Man
Cat Man
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CAT MAN PLEASE CAN YOU HALP ME UNDERSTAND HOW THE ARRANGMENT
CAT MAN PLEASE CAN YOU HALP ME UNDERSTAND HOW THE ARRANGMENT NUMBERS AND SERIAL NUMBERS WORK. I WOULD LIKE TO BUY A USED MOTOR, I HAVE THREE TRUCKS WITH A 3126 IN THEM TWO 1999 IN CHEV CHASSIS AND THE… read more
Cat Man
Cat Man
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2001 GMC 6500 top kick 3126 cat will shut off going Down
2001 GMC 6500 top kick 3126 cat will shut off going Down road sometimes won't do it for days then it will do it ten times in a row loses all power to dash like key was shut off… read more
Cat Man
Cat Man
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99 gmc 7500 air brakes no brake lights. checked fuse, switch
99 gmc 7500 air brakes no brake lights. checked fuse, switch on brake pedal and bulbs-all working. turn signals work fine. Is there another switch or relay somewhere?… read more
spankyjr1
spankyjr1
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Vocational, Technical or Trade Scho
420 satisfied customers
3126 cat need to ck compression need tool # XXXXX you help. 2000
3126 cat need to ck compression need tool # XXXXX you help. 2000 model gmc 3126 installed new and reprogramed computor ,got rid of injector short codes and then replaced all six injectors still no sta… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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