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My truck is C15 Acert 2007 379 Peterbilt my truck has the
My truck is C15 Acert 2007 379 Peterbilt my truck has blown the oil cap off twice within a month apart … read more
NicholasM1019
NicholasM1019
Diesel Technician
Vocational, Technical or Trade School
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Cat man, I've read many of your diagnosis over the last year
Hello Cat man, I've read many of your diagnosis over the last year and want to thank you for the information and the money I've saved. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
Cat c15 twin turbo acert. Recently developed whistle at
Cat c15 twin turbo acert. Recently developed whistle at higher rpms under load. Replaced all cac boots, tested cac, no leaks. Took it to shop, the replaced all pulleys, noise quit for a day and then c… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
I have a c16 cat engine with 2 vent tube sensor 1 on the
I have a c16 cat engine with 2 vent tube sensor 1 on the valve cover and 1 beside the block on the driver side the 1 on the block has blow by coming out of it and has a smell like a Catalic converter … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
I have a 2001 Peterbilt with a Cat C15 serial number
Hello I have a 2001 Peterbilt with a Cat C15 serial number 6Nz20932, I have to replace the engine but don't know what swaps I can use. Most of the trucks I find for parts have a Cat C15 Acert engine. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
I have a 1999 cat 3406e 2ws. Overhauled 52,000 miles ago. On
I have a 1999 cat 3406e 2ws. Overhauled 52,000 miles ago. On long hard pulls when the turbo boost is running 35-40 psi. It starts blowing oil out the blow by. New turbo and air compressor at overhaul.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
2004 international DT466E, has very gh blowby coming out of
2004 international DT466E, has very high blowby coming out of draft tube, along with slight oil. I am looking to by this used truck. The truck has 880,970 miles. But was out framed 15 months ago. And … read more
cumminsdr
cumminsdr
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High School or GED
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Buddy just did inframe on detroit 60 engine, everything seems
Buddy just did inframe on detroit 60 engine, everything seems fine ,with horse power .Noticed small to medium amount of blowby(if this makes sense). Noticed oil leaking from flex exhaust pipe just rea… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Cat C7 engine just started blowing copious amounts of oil
Cat C7 engine just started blowing copious amounts of oil out of the blowby tube. The engine was rebuilt 300+ hours ago and has had no problems. The engine also does not appear to be running poorly as… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
I have a C15 in a Pete and the driver was complaining of excissive
I have a C15 in a Pete and the driver was complaining of excissive blow by smell and was going home early. The engine had only 416,000kms but 16,000 hrs so I figured it was time to rebuild. I convince… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
I just bought a 2006 model Kenworth T800 with a Cat c13 Acert
I just bought a 2006 model Kenworth T800 with a Cat c13 Acert engine. The engine starts good and seems to have plenty of power. The engine light is on and there are a number of codes with several pert… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
Hello cat man my c15 is breathing hard and throwing oil out
Hello cat man my c15 is breathing hard and throwing oil out of the breather tube. Will the srcondary breather and canister minimize the blowby?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
I have a cat 3406b engine that blows oil out of the dipstick
I have a cat 3406b engine that blows oil out of the dipstick tube. You can remove the oil fill caps and it stops. So I removed and cleaned the crankcase breathers and it stopped for a day or two but n… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
JUST DID AN INFRAME ON A CAT C15 WITH PLATNUM KIT,WHEN DONE
JUST DID AN INFRAME ON A CAT C15 WITH PLATNUM KIT,WHEN DONE TRUCK WAS RUNNING FINE CUSTOMER DROVE IT ABOUT 30 MILES LOADED IT WHEN COMING BACK WITH LOAD STARTING BLOWING SMOKE OUT OF EXHAUST AND BREAT… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
International Drill truck: I have a 3406 cat engine its on
I have a 3406 cat engine its on a drilling rig. I get lots of oil coming through blowby tube at normal drilling Rpms about 1800. At 1600 it's just a small drip and at 1500 almost none. I also drained … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
I have an 2005 Kenworth with a 475 acert c15 twin turbo MXS
I have an 2005 Kenworth with a 475 acert c15 twin turbo MXS model. It has just over a million miles. I change my oil every 13,000 - 15,000.change fuel filters every 6,000 miles also.when I bought the … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
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
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
Hello I have 2008 pete with cat c15 acert SDP model im on my
Hello I have 2008 pete with cat c15 acert SDP model im on my second air compressor in a year. leaking oil to air dyer (spits oil) was doing it 6 months ago replace air compressor fix it for about 6 mo… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

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I am ASE Master Truck Certified.

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Jeremy

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Curtis B.

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Chris (aka-Moose)

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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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