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Related Medium and Heavy Trucks Questions
I have a 2002 freight liner fl70 the cruise stop working,
I have a 2002 freight liner fl70 the cruise stop working, now if you press the brake pedal it will work let up an it stops working. It will flash a code of 6 1 can someone help. Thanks … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have 2000 FL 70 with a cat 3126 and Eaton autoshift tCNNhe
Hello I have 2000 FL 70 with a cat 3126 and Eaton autoshift tCNNhe truck only has 60,000 miles I bought the truck a year ago and have problems with the transmission. Had it towed into Freightliner and… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
398 satisfied customers
I have an 02 fl80 with 3126 cat. It starts and runs 3 or 4
I have an 02 fl80 with 3126 cat . It starts and runs 3 or 4 seconds and then dies. Crank again for 4 to 10 seconds it will start and run fine. If I shut it off starts fine unless it sits 15 minutes th… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
1998 FL70 Freightliner with an 8.3 Cummins motor. It will
1998 FL70 Freightliner with an 8.3 Cummins motor. It will run and then the engine shut off light will come on and the motor will shut off. It will restart, but in like five minutes it will do it again… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
My chevy c6500 has 3126 cat 7.2. It drives good for a few
My chevy c6500 has 3126 cat 7.2. It drives good for a few miles then the chevk engine light flashes on and it loses acceleration. i cannot get over 45 after that. we replaced the air, fuel filters as … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,214 satisfied customers
I have a 2001 cat 3126 in a fl70 box truck with 276,000
i have a 2001 cat 3126 in a fl70 box truck with 276,000 miles the flash codes are 39 15 49 12 61 69. It starts up then the engine protect light comes on and shuts the motor down. I cleaned all connect… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,214 satisfied customers
I have a 1999 Sterling with 3126 CAT engine. I want to know
Hi, I have a 1999 Sterling with 3126 CAT engine. I want to know if there is any type of reset switch? The truck won't turn on. I've been told that it could be the computer, other say the fuel shut off… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,214 satisfied customers
I have a freight liner with a 3126 cat motor trouble code
i have a freight liner with a 3126 cat motor trouble code 396 do you know what that is for … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,214 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
10,214 satisfied customers
2002 Freightliner FL60 bucket truck with a Cat 3126 engine.
2002 Freightliner FL60 bucket truck with a Cat 3126 engine. Engine light comes on while driving, then engine shuts off. Sometimes it will run until I come to a stop and then shuts off (almost like sto… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,214 satisfied customers
My check engine light comes on and the engine protect light.
My check engine light comes on and the engine protect light. And the engine loses power at about 6th gear… read more
Expert
Expert
7,458 satisfied customers
Have a 06 freight liner with cat 3126 won't start in am unless
Have a 06 freight liner with cat 3126 won't start in am unless using starting fluid with wd40 replaced pickup pump checked all lines no visible leaks losing prime somehow runs fine after it starts… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,214 satisfied customers
I have a 3126 cat that I can pump up fuel pressure with hand
I have a 3126 cat that I can pump up fuel pressure with hand primer pump but will lose pressure if it is running or not?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,214 satisfied customers
Cat 3126 with 10 speed automatic. Good combo in a FL-70 with
Cat 3126 with 10 speed automatic. Good combo in a FL-70 with a 12' Toter home body? will be pulling a 36' fifth wheel trailer weighing about 15k behind it. Heading from east coast to yellowstone, down… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,214 satisfied customers
I have an 2000 frghtliner FL70 w/3126 CAT. runs great ,but
I have an 2000 frghtliner FL70 w/3126 CAT. runs great ,but cant shut it off ,want restart. I have done service, filters , fluids , no diag codes present. can you help?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,214 satisfied customers
I have a 3126 cat engine in a 1999 chev dump truck. The engine
I have a 3126 cat engine in a 1999 chev dump truck. The engine starts but shuts down in about a minute, then starts again about three or four times, then shuts down again. After restarting again it ru… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,214 satisfied customers
I have a cat 3126 in a 2001 fl70 farm truck. came in with a
I have a cat 3126 in a 2001 fl70 farm truck. came in with a load last night, no power. Fuel filters have 200 miles, but that's what it acts like. Flash code 39 Harlan… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,214 satisfied customers
I have a FL70 3126 Cat. Problem started out to be a surge at
I have a FL70 3126 Cat. Problem started out to be a surge at road speed ( goes off power and comes on strong). WOT seems ok. Now it will surge and if I stop on an exit ramp, idle surge is bad and stal… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,214 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

4,737 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

10,214 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

4,023 satisfied customers

worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

Jeremy

Certified Truck/Bus Technician

2,740 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

cumminsdr

cumminsdr

Mechanic

1,700 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

1,571 satisfied customers

Technician turned service manager on multiple lines of trucks and engines, used in industry.

Chris (aka-Moose)

Chris (aka-Moose)

Technician

353 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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