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Tractor brakes came on while driving on highway. Didn’t have…

Customer Question
Tractor brakes came on...

Tractor brakes came on while driving on highway. Didn’t have a loss in pressure. Brakes won’t release

Mechanic's Assistant: What's the make/model/year of your truck? Engine type?

2014 Peterbilt 388 cummins

Mechanic's Assistant: Are you fixing your truck yourself? What have you tried so far?

Drained air. Tried again. Nothing

Mechanic's Assistant: Anything else you want the truck mechanic to know before I connect you?

Smelled oil when this happened

Submitted: 8 months ago.Category: Medium and Heavy Trucks
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Answered in 6 minutes by:
11/13/2017
Technician: Wayne, Journeyman replied 8 months ago
Wayne
Wayne, Journeyman
Category: Medium and Heavy Trucks
Satisfied Customers: 11,218
Experience: worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling
Verified

Hi I'm Wayne

I will be assisting you with this issue today

What you are describing is a wheel seal leaking

that is the oil smell, brakes locked up do to a faulty brake chamber

I hope this helps you

Wayne

My goal is to give you the best experience possible! I hope I have earned a 5 star rating! Please remember to rate my service by selecting the 5 stars at the top of the screen before you leave today. If you need more assistance, please use the reply box and let me know.

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 8 months ago
Brake chamber on a disk brake tractor?
Technician: Wayne, Journeyman replied 8 months ago

Hi

I was not aware that it had disc brakes

not very common, is the pressure full charged 120 lbs

did you pull the dash valves in and out to get them to release

Wayne

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Category: Medium and Heavy Trucks
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Experience: worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

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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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