Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
I have an issue with a freightliner truck with a cummins M11
I have an issue with a freightliner truck with a cummins M11 engine. Need a tech familiar with this. … read more
Andy
Andy
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Vocational, Technical or Trade School
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Spoke about a vt365 having oil issues oil psi 50 IHOP 567
Hi spoke about a vt365 having oil issues oil psi 50 IHOP 567 psi no fire has full fuel filter will run on shot of ether then die any insite… read more
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Mike Mcmillan
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I have a 2014 international lonestar with the n13 maxiforce
Hi , i have a 2014 international lonestar with the n13 maxiforce engine..it started about 2 weeks ago. It will smoke baddly and diesel when i first start it.then after a couple mins it straights out a… read more
Alex Olsen
Alex Olsen
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Freightliner Columbia day cab with detroit series 60 Vin#
Freightliner Columbia day cab with detroit series 60 Vin# *****It's getting frustrating. Truck shit down while running n ok t at highway speed but idling at signal .Then we had to towed it it would no… read more
spankyjr1
spankyjr1
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2007 freightliner columbia with series 60 detroit when cold
2007 freightliner columbia with series 60 detroit when cold starts and will run fine for an hour. As soon as it gets warm it says check engine and shuts down. It will not restart again … read more
timdieseltech
timdieseltech
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Seems like everytime a trailer is attached to the truck i
Seems like everytime a trailer is attached to the truck i get check engine lights … read more
][\][iCk0411
][\][iCk0411
Fleet Warranty Manager
Vocational, Technical or Trade School
5 satisfied customers
I replaced the a/c compressor on my 2006 freightliner
I replaced the a/c compressor on my 2006 freightliner Columbia. The problem is that the compessor cycles on an of in about 30 seconds time. I noticed that the head pressurw was up found that the clutc… read more
Wayne
Wayne
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I have an '03 columbia with a c15. when cold will start and
I have an '03 columbia with a c15. when cold will start and run fine for about 15-20 min if I let it sit or about a mile or to if I drive it, then it dies and won't restart for about 2-3 hrs. (until i… read more
Cat Man
Cat Man
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1997 IH 4600 fire truck DT466E last 8 of vinWH537274. Eng
1997 IH 4600 fire truck DT466E last 8 of vinWH537274. Eng s/n 466HM2u1071294 249hp 2244 engine hours. Started with engine dying a couple of times when driven and pumped under light load. It would rest… read more
Daniel Wilson
Daniel Wilson
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Fault code at a truckstop this, SPN 1037 ACTIVE VERY HIGHT
SPN 1037 ACTIVE VERY HIGHT hc ABSORPTION IN THE dpf WE CHANGED THE FILTER 2009 FREIGHTLINER 60 SERIES COLUMBIA … read more
FIX-IT
FIX-IT
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Died out will not start without ether. Will not run. Like
Died out will not start without ether. Will not run. Like there is no fuel … read more
Jeremy
Jeremy
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I have a 2005 Columbia with a Mercedes engine. Occasionally,
I have a 2005 Columbia with a Mercedes engine. Occasionally, for no apparent reason, it will code and drop down to 1200 rpm. No matter what, it will not run more than 1200 rpm. 30 seconds to a minute … read more
FIX-IT
FIX-IT
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Have a 6 v 92 in a fire truck with 110 k miles . oil
have a 6 v 92 in a fire truck with 110 k miles . oil pressure gauge on start up goes to 60 then drop fairly fast as it warms up but still at 30 40 lbs then the engine shuts off and wont start for 20 m… read more
Justin Hebert
Justin Hebert
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I have a cummins 5.9 isb in a 1999 rv starts fine when it warm
I have a cummins 5.9 isb in a 1999 rv starts fine when it warm up it shuts down then restart shut down 30 sec. or less . let cool down over night start up fine my run 20 to 30 min tell warmed up them … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
I am working on and 06 Pete 379 with a Cat C-15 MXS24605.
I am working on and 06 Pete 379 with a Cat C-15 MXS24605. The truck came in with a no start concern, died while driving down a rough road. Driver states it has new batteries and alternator in the last… read more
Cat Man
Cat Man
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I have a GMC with a cat 3126 serial number 7as72171. It starts
I have a GMC with a cat 3126 serial number 7as72171. It starts fine and runs like a top. After about ten minutes on the road if you let off the gas and let the engine go below 1000 RMP the engine dies… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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Cat C7 engine... had all 6 injectors replaced as well as HEUI
Cat C7 engine... had all 6 injectors replaced as well as HEUI pump. Only runs rough once engine gets warm.. customer states that once he shuts down engine for 30 seconds, and re-fires... runs great fo… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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Jeremy ,my question is I have a 2007 columbia and the a/c works
Jeremy ,my question is I have a 2007 columbia and the a/c works when sitting still but it stops working after you start driving down the road freon level has been check .evac and recharge just to make… read more
Expert
Expert
7,458 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

11,374 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

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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