Medium and Heavy Trucks

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1994 KW Cat 3406E. 80K on inframe. When I did the inframe I
1994 KW Cat 3406E. 80K on inframe. When I did the inframe I replaced cam, head, injectors, and the piston packs and bearings. I also replaced turbo and air compressor at time of inframe. At 10K after … read more
Mike Mcmillan
Mike Mcmillan
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2014 Freightliner DD15 turbo went out(shaft broke). No debris in inlet or exhaust. Took off aftercooler to clean oil out. Put on reman turbo. Went 120 miles and did the same thing. Oil pressure shows … read more
Wayne
Wayne
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Vocational, Technical or Trade Scho
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I am losing 1 gallon of oil everymiles. No drips no smoke.
I am losing 1 gallon of oil every(###) ###-####miles. No drips no smoke. Do have a film on the frame that appears to be coming from the frame mouneed hydropack behind the sleeper. … read more
Daniel Wilson
Daniel Wilson
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New head and gasket, new rad, new after market turbo. Truck is full delete, I'm going through 2 gallons of coolant in a 12/14 hour day. I bypassed def tank, checked compressor, trans and all valves fo… read more
Jeremy
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My air compressor is pushing oil through to my air dryer. Any thoughts on how to stop it? … read more
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We have a 2250 isx. A valve broke off so we removed the head
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cumminsdr
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I have cummins isc 2009 With dpf It's building very
Hello I have cummins isc 2009 With dpf It's building very excessive blow by even blowing engine oil through blow by What could cause that??… read more
cumminsdr
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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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engine using 1 gal. oil every 500 miles air compressor ok turbo
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Wayne
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Buddy just did inframe on detroit 60 engine, everything seems
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Daniel Wilson
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Wayne I have a komatsu d61 PX-12. The Aluminum Hose going from
Wayne I have a komatsu d61 PX-12. The Aluminum Hose going from the turbo top the motor blew a o 'ring. It leaked oil in the motor down to about 1 gallon. the operator noticed loosing power and a knock… read more
Wayne
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I am working on an isx cummins engine sn 79370852.. it is not
I am working on an isx cummins engine sn 79370852.. it is not leaking oil but is using 4 gallons between oil changes.it doesn't appear to be burning it. Its not going into the fuel. Its not blowing ou… read more
Wayne
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I have a 2003 Cummins ISM 500 in my RV. It recently started
I have a 2003 Cummins ISM 500 in my RV. It recently started making a popping noise at idle out of exhaust with white smoke. Was advised it was probably an injector and ran some amsoil fuel conditioner… read more
cumminsdr
cumminsdr
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I have failure on Cummins ISX Engine 2005 year Air Compressor
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spankyjr1
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2000 peterbuilt w/ series 60 12.7 detroit started blowing oil
2000 peterbuilt w/ series 60 12.7 detroit started blowing oil out at about 1 gal per 100 miles. Had inframed at a private shop in MN. After getting back ran about 5000 miles and started doing the same… read more
spankyjr1
spankyjr1
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I have an 06 freightliner with a 14l Detroit and what happened
I have an 06 freightliner with a 14l Detroit and what happened was the turbo blew the intake tube off the air to air and oil then came spewing out of the turbo. I know the turbo is blown and there is … read more
Cat Man
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Vocational, Technical or Trade Scho
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Have 99 freightliner with cummins n 14 thought turbo was bad
Have 99 freightliner with cummins n 14 thought turbo was bad because it was leaking at rear of turbo and had small amount of oil in air cooler tube. Put on friends used turbo and still oil coming out.… read more
spankyjr1
spankyjr1
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Vocational, Technical or Trade Scho
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freightliner fl60: hi i have a 2000 freightliner with a 5.9
hi i have a 2000 freightliner with a 5.9 cummins with 295k miles the truck runs like a champ and doesnt loose any power. i had a bad oil leak and replaced the oil pan gasket, the front cranks seal wit… read more
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Mechanic
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Meet the Experts:

Daniel Wilson

Daniel Wilson

5,454 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

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I am ASE Master Truck Certified.

Wayne

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

cumminsdr

cumminsdr

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All types of Cummins applications

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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