Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
I have a 2004 Freightliner Columbia CAT C15 engine, and the
I have a 2004 Freightliner Columbia CAT C15 engine, and the A/C compressor clutch never stops, it's always running even if I turn off the A/C from the interior and the truck has good air conditioning… read more
Mikael
Mikael
Bachelor's Degree
150 satisfied customers
I got a 2007 Freightliner Columbia got the Mercedes Benz
I got a 2007 Freightliner Columbia got the Mercedes Benz engine. Fuel pump not sucking fuel. Parked it last week it was fine now the pump ain't engaging. Can't seem to find the relay/Fuse for the fuel… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,537 satisfied customers
My 2001 Freightliner Columbia with 12.7 Detroit has some
My 2001 Freightliner Columbia with 12.7 Detroit has some sort of fuel problem. When the fuel tanks get below a half tank. Sometimes in the morning it will suck the filter dry and die. So we have to ad… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
418 satisfied customers
I have a c13 ran perfect on the way from Miss. to Ga and 5
I have a c13 ran perfect on the way from Miss. to Ga and 5 miles from home stopped at the store. Pulled back on the road and truck would barely run and was smoking black out the exhaust like a tire on… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
Freightliner 2005 MBE 4000 Columbia with Fuller 10 speed.
Freightliner 2005 MBE 4000 Columbia with Fuller 10 speed. Making grinding noise in 10th gear when u take your foot off the pedal. Truck runs fine no other issues.… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
418 satisfied customers
2006 Freightliner c13 cat oil pressure shot up to 75 going
2006 Freightliner c13 cat oil pressure shot up to 75 going down the road bout a week ago but it would come back to normal... back and forth.... now it's tryna read low bout 20 idling and 30 going down… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
Im having an issue that I can figure out and seems to be
Im having an issue that I can figure out and seems to be getting worse. Truck is a 2007 Freightliner Columbia witha 14L Detroit S60 with EGR and 10 speed tranny. I have the truck running in boost mode… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,537 satisfied customers
Have a 2006 Freightliner Vin: 1 F U J A P C K 6 6 D W 7 9 8
Have a 2006 Freightliner Vin: 1 F U J A P C K 6 6 D W 7 9 8 0 7 .. Need to know what air conditioner oil goes in the compressor. What is the capacity of the freon in the system. … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
Road Lights have stopped working on 2002 freightliner
Road Lights have stopped working on 2002 freightliner columbia. checked and i am not getting power to the lights. I have swapped out the road lamp relay with a known good relay. I am getting power to … read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
Clayton I have a freight liner Columbia 05 Having some issues I di
Hi Clayton I have a freight liner Columbia 05 Having some issues I did a complete engine in frame everything' looks fine no codes no lutes on The problem is losses a lot of power going up hills even w… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
Good afternoon .my freightliner columbia 2009 series 60
Good afternoon .my freightliner columbia 2009 series 60 .water separator have low level diesel before was a number 2 .it's a new fuel filter I would like to know that's normal ..or maybe that's the re… read more
Roy Belding
Roy Belding
7,528 satisfied customers
My columbia freightliner 06 has no enough power when going up the hill at the same time it
my columbia freightliner 06 has no enough power when going up the hill at the same time it takes alot of fuel and the smoke is normal.whats the problem?or does it have to do with egr. Well, a detroit … read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
It sucks all the diesel out of the fuel filter and looses all
It sucks all the diesel out of the fuel filter and looses all power sometimes . i can have the pedal to the floor and it will go sometimes and sometimes not . it feels like its trying but its sucking … read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,571 satisfied customers
Truck keeps losing power when loaded. It wont do more than
Truck keeps losing power when loaded. It won't do more than 30 miles per hour up hills and sometimes does the same on flat ground. Will not go above 1400 Rpm's in tenth gear. Have replaced v pod, turb… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
Need advice on good used s/a medium-duty road tractor
Need advice on good used s/a medium-duty road tractor: I need help in setting up an Over-the-Road hotshot rig; a good used medium-duty road tractor to pull a stepdeck or lowboy-type flatbed trailer ra… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
4,361 satisfied customers
I have an 03 Series 60 in a freightliner columbia. It has
I have an '03 Series 60 in a freightliner columbia. It has 985000 miles on it. Yesterday it started losing power on hills, small and large. It has an auto-shift tranny, and when shifting from 10th to … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
Freightliner Columbia 2005 with air ride .... Can we change
Freightliner Columbia 2005 with air ride .... Can we change to spring suspension ? any of the experts would like to comment ? Trucks in Africa ... airbags are not handling the roads well.… read more
Clayton
Clayton
Technician
Vocational, Technical or Trade Scho
627 satisfied customers
2005 Freightliner Columbia loses power some times.
I have a 2005 Freightliner Columbia that loses power some times. Driver complains that the hil he use to climb in 5th Gear with load now he goes in 3rd gear. Sometimes even on a leveled surface it act… read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

11,537 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,234 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

4,361 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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