Chevy
I have a 2003 chevy duramax that is leaking large amount of oil from breather tub in front right side of engine
Expert's Assistant chat
Customer: I have a 2003 chevy duramax that is leaking large amount of oil from breather tub in front right side of engine
Answered by John in 4 mins 12 years ago
John
40+ years of experience
6,206 satisfied customers
Specialities include: Automotive Mechanic, Small Engine Repairs, Auto Body Repairs, Diesel Engine Repairs
Hello,
This sounds like the crankcase is building too much pressure possibly due to a component failure.
Crankcase Ventilation System Inspection/Diagnosis
Concern | Action | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
DEFINITION: During normal operation the crankcase gases can be seen exiting from the hose at the oil separator. The maximum crankcase pressure is 4 kPa or 16 in of water at 3,100 RPM measured at the oil level indicator tube. | |||||||||||
Oil leak - external |
| ||||||||||
PCV check valve (bottom of generator bracket) stuck closed |
| ||||||||||
Restricted Positive Crankcase Ventilation vent hole inside the PCV separator (if equipped) | Confirm the vent hole, if equipped, or area between the bracket and block is not restricted with dirt, ice, or debris. | ||||||||||
Odors | Normal situation | ||||||||||
Noise | Cracked hoses | ||||||||||
Smoke | Internal engine failure | ||||||||||
Also check the oil level & if there seems to be fuel in the engine oil it is possible that you could have a fuel injector problem.There has been a large amount of them fail.
Read less
0 Likes
BackJohn
6,206 satisfied customers
40+ years of experience
John
40+ years of experience
6,206 satisfied customers
Ellen
Licensed mechanics
14 Mechanics are online right now.
Related Car Questions
Bought a 355 cu 310hp blueprint engine from jegs for an s1
6.24.2019
Gary
Gold Certified GM Technician
3,310 Satisfied Customers
I have a 2004 Duramax which had all injectors replaced a
9.14.2017
Pete
Automotive Diagnostic Specialist
39,172 Satisfied Customers
I got a 01 duramax and im getting alot of blowby, 2500 hd
4.9.2017
Gary
Chevy Technician
9,659 Satisfied Customers
GM Chevy: I have a 2002 chevy 6.6 duramax,it set a code for
2.12.2014
GM Tech (Cam)
Owner/Technician
28,685 Satisfied Customers
Chevrolet C3500 4x2: i recently purchased a 2003 C3500 with
8.3.2013
Gary
Chevy Technician
9,659 Satisfied Customers
Bought a 355 cu 310hp blueprint engine from jegs for an s1
6.24.2019
Gary
Gold Certified GM Technician
3,310 Satisfied Customers
I have a 2004 Duramax which had all injectors replaced a
9.14.2017
Pete
Automotive Diagnostic Specialist
39,172 Satisfied Customers
How it works
Ask for help, 24/7Ask for help, 24/7
Members enjoy round-the-clock access to 12,000+ verified Experts, including doctors, lawyers, tech support, mechanics, vets, home repair pros, more.
Expert will respond in minutesExpert will respond in minutes
After you reach out, we match you with an Expert who specializes in your situation. Talk, text, chat, whichever you prefer.
Save time & moneySave time & money
No scheduling hassles, missing time from work, or expensive consults.
A JustAnswer membership can save you significant time and money each month.
Sarahesq and 87 other Automotive Mechanics are ready to help you.
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.
Last Updated: 12-20-22
“I had a resolution within 15 minutes”
— Erin, JustAnswer customer
Why you’ll love JustAnswer
JustAnswer is the best way to get expertise on-demand from doctors, lawyers, vets, mechanics and more. Since 2003, we’ve helped more than 9 million people in 196 countries and have an A+ rating with BBB and a 9.6/10 rating with TrustPilot.
Highly rated, verified Experts
We pride ourselves in our 8-step verification process including license and credential checks. Vetted by us and rated by customers, like you.
Free expert tips & articles
By Robyn
By Carolyn Hauck
By Jessica Klimczak
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.
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.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
Web sites like justanswer.com/legal ...leave nothing to chance.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
