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Related Medium and Heavy Trucks Questions
2001 3126 turns over runs for a few seconds and dies. Fl70
Second opinion] 2001 3126 turns over runs for a few seconds and dies … read more
Mike
Mike
Triage Tech/Shop Foreman
Associates
217 satisfied customers
I have a 3126 in o2 FL70 dump truck 7 yarder. Lately I have
I have a 3126 in o2 FL70 dump truck 7 yarder. Lately I have to crank the engine longer for it to start like 15 to 25 seconds. Battery ate good and I plug it in on over night for it to trickle charge. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,098 satisfied customers
Got a 2001 gmc topkick with 3126 in it. Was running fine.
Got a 2001 gmc topkick with 3126 in it. Was running fine. Went to start long cranking. Had already run into bad inj actuation sensor couple weeks back. Fixed that. I unplugged the sensor again to test… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,098 satisfied customers
MY 1999 FL70 CAT 3126 IS LOSING POWER & SHUTTING ITSELF OFF
MY 1999 FL70 CAT 3126 IS LOSING POWER & SHUTTING ITSELF OFF BUT ONCE I RESTART IT AFTER PUMPING THE GAS PEDAL IT DRIVES FOR A LITTLE BIT & LOSES POWER & SHUTS OFF. KEPT REPEATING TILL I GOT OFF THE HI… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,098 satisfied customers
I just bought a 1997 freightliner FL70 with 3126 engine.
Hi there! I just bought a 1997 freightliner FL70 with 3126 engine. Started up fine at seller's place, drove home about 60 miles just fine. Shut off the engine for an hour or two, started back up just … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,098 satisfied customers
I HAVE A CAT ENGINE 3126 1998 MODEL THAT IS RUNNING RUFF
I HAVE A CAT ENGINE 3126 1998 MODEL THAT IS RUNNING RUFF WITH NO POWER THE FUEL PRESSURE IS JUMPING BETWEEN 65 AND 110 PSI BUT THE HIGH PRESSURE SIDE LOOKS GOOD ON THE COMPUTER … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,098 satisfied customers
I have a 1999 Sterling boom truck with a Cat 3126 engine.
I have a 1999 Sterling boom truck with a Cat 3126 engine. Truck has been running fine until recently. Used truck one morning, no problems. Let it idle for 20 minutes then started back down the road. T… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,098 satisfied customers
I have a Kubota L3240. while running it last week I think I
I have a Kubota L3240. while running it last week I think I ran it out of fuel. The fuel gauge still said I had 1/4 tank but when It started running rough and sputtering I checked the tank and could s… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,118 satisfied customers
Having a problem with our 3126 equipped tow truck. It is in
Having a problem with our 3126 equipped tow truck. It is in a 2001 Chevy T7500. The issue is with the fuel pressure. It is having a problem where it looses fuel pressure under load. It was low on fuel… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,098 satisfied customers
01 sterling m8500 engine Model 3126 7.2L. Drives for 1 mile
01 sterling m8500 engine Model 3126 7.2L. Drives for 1 mile then dies. Let it cool down and restart normally. If the vehicle its idle ling is totally fine.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,098 satisfied customers
I have a 2001 freightliner with a C 15 cat engine serial
Hi, I have a 2001 freightliner with a C 15 cat engine serial number 6nz34593. truck seems to lose prime overnight, starts but takes a while. today after starting & driving over 100 miles(ran fine). Ki… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,098 satisfied customers
2002 business class with cat. loses fuel to injectors when
2002 business class with cat. loses fuel to injectors when driving at low rpms. Mostly when deceleration going down hill. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,098 satisfied customers
Morning. Hoping Cat Man is around one? I am working on a
Morning. Hoping Cat Man is around for this one? I am working on a 1999 GMC cab forward truck with a 3126 Serial# ***** Short story is, Started the truck this morning, fired up as it should, ran fine. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,098 satisfied customers
My question is about the air intake heater system on my 2000
My question is about the air intake heater system on my 2000 Freightliner FL70 that has a Cat 3126 engine. I have had the truck since March of this year. Initially the indicator light for warming the … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,098 satisfied customers
Have a c-12 that will not start. Had a tow truck pull the truck
Have a c-12 that will not start. Had a tow truck pull the truck in 2nd gear with the key turned on and the truck ran as if nothing was wrong as long as he kept towing me.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,098 satisfied customers
I have a 2000 gmc 8500 with a cat 3126 it has sat for about
I have a 2000 gmc 8500 with a cat 3126 it has sat for about two years I did start it from time to time I was driving it to get a state inspection and it drove fine for about three miles then it acted … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,098 satisfied customers
Have a 3126 cat ckm that will not start. Replaced heui after
Have a 3126 cat ckm that will not start. Replaced heui after local diesel shop plugged their computer into it. It started and ran for several minutes died and will not start. Have a gauge in oil line … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,098 satisfied customers
Cat Man; I contacted you this morning about my 1999 Safari
Cat Man; I contacted you this morning about my 1999 Safari Zanzabar Motor Home with a 3126 Caterpiller Engine that would not start. We had problems & I lost contact… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,098 satisfied customers
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Daniel Wilson

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Chris (aka-Moose)

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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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