Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
Where is the compressor for brakes located on a ISB .6.7
Where is the compressor for brakes located on a ISB .6.7 ...2008 model ? I'm wanting to replace the governor but can't find it … read more
james Roberts
james Roberts
Maintenance assistant
Vocational, Technical or Trade School
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My air pressure keeps going down and gets to 60 psi. It
My air pressure keeps going down and gets to 60 psi. It stays there for a couple of minutes and then starts to build pressure. This happens over and over. I took the air line loose coming out of the c… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
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I change the compressor but still not building air. Peter
I change the compressor but still not building air … read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
2011 mach cxu613 does not build air pressure only 50 psi.
2011 mach cxu613 does not build air pressure only 50 psi . New governor same issue don't hear leaks from compressor discharge line or any major leaks… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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Mack ch 612 screw air compressor problem, mack ch 612 not
mack ch 612 not sure of the year vin is1m2aa09y6rw005073 I believe it an 98 … read more
spankyjr1
spankyjr1
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Vocational, Technical or Trade Scho
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I have a 2008 Peterbilt with a C15 Acert. Since owning it
I have a 2008 Peterbilt with a C15 Acert. Since owning it for three years now I have had to put 6 air compressors on it due to oil coming out the air dryer. I want to know how to solve this problem… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
C15 accert had head gasket changed ever since it pressures
C15 accert had head gasket changed ever since it pressures up and pushes coolant out the overflow tube .new rad cap also. No other leaks holds pressure build over nite. No discolouration in coolant or… read more
Wayne
Wayne
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Cat c15 using coolant and pressure in the overflow
cat c15 using coolant and pressure in the overflow tank.Dealer says could be bad injector cups,wants to change them,doesnt appear to have coolant in the fuel??? … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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I have A 2006 Kenworth with a C15 Cat engine. I am loosing a
I have A 2006 Kenworth with a C15 Cat engine. I am loosing a lot of coolant appx three gallons on a 8 hour day it seems to slowly get worse. The coolant is coming out of the hose by the rad cap I have… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
MrSpanky, I have a 2005 Volvo in the shop with the D12
Hey MrSpanky, I have a 2005 Volvo in the shop with the D12 motor. It is pushing coolant out the over flo tank. It builds 15 lbs in the main tank, then the pressure cap releases some pressure drops to … read more
spankyjr1
spankyjr1
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Vocational, Technical or Trade Scho
420 satisfied customers
I have a 2005 ford f650 with a 5.9 cummings, the degass
Hello, I have a 2005 ford f650 with a 5.9 cummings, the degass bottle is over pressurizing, I read that it could be the air compressor, or the head gasket, checked the air compressor by disconnecting … read more
spankyjr1
spankyjr1
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Vocational, Technical or Trade Scho
420 satisfied customers
2000 ISM400 turbo #35000163. Suddenly developed enough crankcase
2000 ISM400 turbo #35000163. Suddenly developed enough crankcase pressure to blow dip stick out. Slobber tube is clear and has a lot of air pressure coming out but no smoke or oil. I unhooked turbo ai… read more
cumminsdr
cumminsdr
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High School or GED
1,700 satisfied customers
Hi Ive got a cat c15 6nz 28000 hrs , been great , just started
Hi I've got a cat c15 6nz 28000 hrs , been great , just started to be slower to start and a bit of pressure through to rad causing the rad to over flow , the coolant is agitated with air or combustion… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
i have 2001 peterbilt and i had a lot of water in air system
i have 2001 peterbilt and i had a lot of water in air system first i changed the cit in the air dryer and still the same then i deside change the air dryer air governor and still i got water in the si… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
Just recently replaced my air compressor on my truck. Truck
Just recently replaced my air compressor on my truck. Truck will only build pressure when at high idle and only slowly then. Compressor has 5 lines coming to it intake, pressure out, two cooling lines… read more
spankyjr1
spankyjr1
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Vocational, Technical or Trade Scho
420 satisfied customers
Need directions on how to replace the a/c compressor and dryer
Need directions on how to replace the a/c compressor and dryer on a Kenworth T2000 with a C15 engine.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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Have a c15 6nz rebuilt 1 month ago because putting antifreeze
Have a c15 6nz rebuilt 1 month ago because putting antifreeze in base around bottom of #2 liner because o rings bad. Liner protusion good and block deck good, first rebuild. After 3 weeks starting put… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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I just recently installed a reman cummings 5.9l engine in an
I just recently installed a reman cummings 5.9l engine in an 2002 ottowa yard dog and also had the radiator rebuilt (new core )the truck runs good but it builds up so much pressure in the radiator it … read more
spankyjr1
spankyjr1
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Vocational, Technical or Trade Scho
420 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

10,237 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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