Medium and Heavy Trucks

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Catman, I have a Cat c12, 2ks serial. I'm trouble shooting
Hi catman, I have a Cat c12, 2ks serial. I'm trouble shooting an oil leak. Only area I seem to come across with seeping oil is around the fuel transfer pump. Is it common for gasket or mounting seal c… read more
NicholasM1019
NicholasM1019
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Vocational, Technical or Trade School
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3208 cat, crank won't start, has a transfer pump, fuel flows
3208 cat, crank won't start, has a transfer pump, fuel flows freely from line joints when fittings are loosened, - fuel solenoid is notorious for failing - howto test for bad solenoid ? … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
12,617 satisfied customers
I have a c12 and it started running all most like its
I have a c12 and it started running all most like its running out of fuel. I have replaced both filter's. Its starts just fine but when I try to accelerate it starts sputtering but run fine at Idle is… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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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
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Vocational, Technical or Trade Scho
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My truck freigthliner century 2008 detroit 60 engine is
My truck freigthliner century 2008 detroit 60 engine is stalling in the low gears 2,3,4,5 sometimes misfires is not finishing regeneration I spent 1 hour and 40 min it was accelerating up and down the… read more
Wayne
Wayne
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Vocational, Technical or Trade Scho
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2004 freightliner century class. Series 60 engine. Has
2004 freightliner century class. Series 60 engine. Has trouble accelerating. Loses power. Sometimes won't start. The starter goes off but the engine won't crank no check engine no code… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
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Shows code 55 by cruise acc/resume test but truck runs fine
Shows code 55 by cruise acc/resume test but truck runs fine for a little bit then it starts cutting out and will only climb up to about 1400-1500 rpm in 7-10 gear… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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Yes I have a 2003 freightliner and my check engine light came
Yes I have a 2003 freightliner and my check engine light came on with the engine protect light I started the truck then minutes later it died what does that mean?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,293 satisfied customers
I have a 2000 freightliner century. It hadnt been started in
I have a 2000 freightliner century. It hadnt been started in a couple of years. I turn the key on and push the button and the starter does not disengage. I put a new starter on and new batteries and a… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
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I HAVE 2005 FREIGHTLINER CENTURY WITH C15 CAT ENGINE. VIN#
I HAVE 2005 FREIGHTLINER CENTURY WITH C15 CAT ENGINE. VIN# ***** EVERY MORNING AFTER I'M STARTING UP MY TRUCK MY SPEEDOMETER SHOWING 75-80MPH. ( ENGINE ON RUN BUT TRUCK PARKED ) WHEN I START DRIVING S… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,293 satisfied customers
2001 freightliner century with cat c 15 engine vin# XXXXX
2001 freightliner century with cat c 15 engine vin# XXXXX engine 6 nz had code 128s254 07 ecm no response check fuse in battery box, in dash, all ok. Tomorow going to check j wire data link, and need … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,293 satisfied customers
have a 2006 freightliner century with c15 cat. am having starting
have a 2006 freightliner century with c15 cat. am having starting issues. occasionally it won't start. acts like dead batteries but show 12.5 volts. replace ingnition switch, solenoid on firewall and … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,293 satisfied customers
Mr Cat Man, I have a c12 2KS. Truck seems like its loosing
Mr Cat Man, I have a c12 2KS. Truck seems like its loosing prime and having to psin over a little longer then i thought it should have to before it starts. Just replaced the cylinder head but customer… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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I have a 2004 Freightliner Century with a Super 10. It was
I have a 2004 Freightliner Century with a Super 10. It was remaned by eaton fuller 6/14/2012. 2 months ago while under a load,the service trans light came on and the truck wouldnt change gears.I took … read more
Toby
Toby
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I have a 99 freightliner century class with a cat c12 and want
I have a 99 freightliner century class with a cat c12 and want to put a cummin n14 525 with the red tops is it possible with less hassle… read more
spankyjr1
spankyjr1
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Vocational, Technical or Trade Scho
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working on a 1999 freightliner with a c15 cat secondard fuel
working on a 1999 freightliner with a c15 cat secondard fuel filter bleeds off after truck is shut off… read more
Cat Man
Cat Man
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This is a heavy equipment question working on a 2005 freightliner
This is a heavy equipment question working on a 2005 freightliner century engine 14L Detroit, what else can cause fuel going into the oil other than a bad injector O-ring? Thank you… read more
FIX-IT
FIX-IT
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Vocational, Technical or Trade Scho
829 satisfied customers
I have a 2004 Freightliner with a CAT C10 Engine in it. This
I have a 2004 Freightliner with a CAT C10 Engine in it. This truck fires right up in the morning, however a couple hours of running and the truck just shuts down when at idle. I have ran the codes in … read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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Meet the Experts:

Daniel Wilson

Daniel Wilson

12,617 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

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5,293 satisfied customers

I am ASE Master Truck Certified.

Wayne

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

Jeremy

Jeremy

Certified Truck/Bus Technician

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

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Curtis B.

Curtis B.

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

Chris (aka-Moose)

Chris (aka-Moose)

Technician

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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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