Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

Connect one-on-one with {0} who will answer your question

, I have a c-13 motor in my 2006 peterbilt. The breather…

Customer Question
Hello, I have a...
Hello, I have a c-13 motor in my 2006 peterbilt. The breather tube is filling up with grey snot constantly. Its bkocking the breather and causing the dipstick to blow out along with a lot of oil. And now today it plugged up the oil filter and caused a loss of oil pressure. What the heck is this stuff and how can I fix it?
Submitted: 7 years ago.Category: Medium and Heavy Trucks
Show More
Show Less
Ask Your Own Medium and Heavy Trucks Question
Answered in 5 minutes by:
3/6/2015
Technician: Curtis B., Technician replied 7 years ago
Curtis B.
Curtis B., Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 43,918
Experience: Technician turned service manager on multiple lines of trucks and engines, used in industry.
Verified
The grey snot is coolant mixing with the oil. You have coolant entering the crankcase. Best way to determine where it is coming from is to remove the oil pan, and pressure the cooling system. Most likely it will be a cylinder sleeve, but not always. It will wipe out the crankshaft bearings in the engine, so it needs to be repaired as soon as possible.
Ask Your Own Medium and Heavy Trucks Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a technicianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Curtis B. Your Own Question
Curtis B.
Curtis B.
Curtis B., Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 43,918
43,918 Satisfied Customers
Experience: Technician turned service manager on multiple lines of trucks and engines, used in industry.

Curtis B. is online now

Related Medium and Heavy Trucks Questions
Semi truck problems. Peterbilt, 379, 1997. Over 2 million.
Semi truck problems JA: What's the make, model, and year of your truck? Customer: Peterbilt, 379, 1997 JA: What's the approximate mileage on your truck? Customer: Over 2 million JA: Is there anything … read more
Justin
Justin
Diesel Technician
Vocational, Technical or Trade School
8 satisfied customers
2009 BLUE BIRD C7S09493, Blew oil out of fill tube. if you
2009 BLUE BIRD C7S09493, Blew oil out of fill tube. if you remove oil cap you cant feel any blow by, if you hold your hand over tube and cover it for just a sec it builds up slightly. What are some th… read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
78 satisfied customers
I have a 2005 peterbilt 379 with a C-15 Acert. It is blowing
I have a 2005 peterbilt 379 with a C-15 Acert. It is blowing off the oil fill cap. (Crankcase pressure) Only when you have a trailer attached. We replaced the air compressor, checked both turbos, they… read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
78 satisfied customers
I have a 3406 E model cat, running down road it push's a
I have a 3406 E model cat , running down road it push's a little oil out of dip stick , I put my over blow by while parked and it starts … read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
78 satisfied customers
I have a cat 3406b and I am loosing motor oil out the blow
I have a cat 3406b and I am loosing motor oil out the blow by tube. I have low crank case pressure looks like steam coming from dip stick and blow by tube. It doesn't put it out at an idle only while … read more
Joe Green
Joe Green
71 satisfied customers
During resent vacation my 5.9 cummins isb needed oil i added
during resent vacation my 5.9 cummins isb needed oil i added rotila-t 30 weight shoild have been 15-40, blow engine over back of motor in about 250 miles need 8 qts of oil addes correct 10-40 seemed t… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
Glad to hear it! Do you have any follow-up questions about
Glad to hear it! Do you have any follow-up questions about your equipment or would you like a second opinion on anything? It's included! yes could a hengst crankcase breather filter cause oil loss? Le… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
Low oil pressure, just changed the oil about 500 miles
Low oil pressure, just changed the oil about 500 miles oil.... oil coming out of the dipstick … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
2001 Volvo N14 Blowing out the oil deepstick? I dont know
Hello JA: Hello. How can I help? Customer: 2001 Volvo N14 Blowing out the oil deepstick? JA: What is the complete model and serial number of your machine? Customer: I dont know sir but I have vin # if… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,886 satisfied customers
I currently own a 2004 277b skid steer and it seems to have
I currently own a 2004 277b skid steer and it seems to have excessive blow by but runs fine with 2200 hrs I've noticed that the crankcase breather was disconnected and the tube runs directly from the … read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,325 satisfied customers
I have a 2006 peterbilt oil pressure goes from 42# to 80# to
i have a 2006 peterbilt oil pressure goes from 42# ***** 80# ***** 03 while running it is a C-13 acert cat engine do you think it is a sensor and where is it located … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
I HAVE A 2012 FREIGHTLINER WITH A DETROIT 60 EPA07 DDEC VI
I HAVE A 2012 FREIGHTLINER WITH A DETROIT 60 EPA07 DDEC VI WITH A LOTS OF OIL PUSHING OUT OF THE OIL DIPSTICK & VALVE COVER GASKET LOOKS LIKE MAYBE CRANKCASE PRESSURE BUT THERES NOT ALOT OF SMOKE OR O… read more
Expert
Expert
5 satisfied customers
Having a nightmare situation with 2008 peterbilt 388
Having a nightmare situation with 2008 peterbilt 388 crankcase pressure warning light. Took truck to Cat they said it was the crankcase filter, replaced it. Code cleared and on my way i go, code comes… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
Just picked up a Fuso truck with a 6d16 engine, it was fine
Hi just picked up a Fuso truck with a 6d16 engine , it was fine around town and 30 min on open road at 2500 rpm 85/90 km h and lost about 4 ltr oil out breather hose that comes out top of engine cover… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
Chevrolet 7500: John, we have a c7500 Duramax that has excessive
John, we have a c7500 Duramax that has excessive blowby out the valve cover but not all the time. Is there something that could cause this intermitenly?… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
I have a 1993 Cummins L10 engine in a bus. We recently completed
I have a 1993 Cummins L10 engine in a bus. We recently completed an in-frame overhaul with new liners, pistons, rings and bearings. It runs great, but the blow by is pushing oil out of the fill tube. … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
what would cause oil to blow out from the head on a 28hp 1.4L
what would cause oil to blow out from the head on a 28hp 1.4L diesel tractor engine. oil also shoots out of the engine oil dipstick and overflows from the filler cap? I have noticed this particulary w… read more
Jim
Jim
Diesel tech.
212 satisfied customers
gmc c-6500: I have a GMC C-6500 c-7 cat diesel I have a lot
I have a GMC C-6500 c-7 cat diesel I have a lot of oil coming out the crank case breather tube but not when you first start the truck but when you drive it and when you come to a stop it almost runnin… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 satisfied customers
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.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Daniel Wilson

Daniel Wilson

6,062 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,353 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

5,115 satisfied customers

worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

Jeremy

Certified Truck/Bus Technician

2,756 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

Curtis B.

Curtis B.

Technician

43,918 satisfied customers

Technician turned service manager on multiple lines of trucks and engines, used in industry.

cumminsdr

cumminsdr

Mechanic

1,886 satisfied customers

All types of Cummins applications

Chris (aka-Moose)

Chris (aka-Moose)

Technician

641 satisfied customers

24 years of experience diagnosing & repairing

< Previous | Next >

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.

Show MoreShow Less

Ask Your Question

x