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Wayne
Wayne, Journeyman
Category: Medium and Heavy Trucks
Satisfied Customers: 8439
Experience:  worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling
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1995 model 379 when brake applied air leaks out of fitting

Customer Question

1995 model 379 when brake applied air leaks out of fitting on firewall marked 213
Submitted: 1 year ago.
Category: Medium and Heavy Trucks
Customer: replied 1 year ago.
I meant fitting 214 on firewall it is a compression fitting with no hose on it
Expert:  Wayne replied 1 year ago.

Hi I'm Wayne

I will help you with this

does it do with or with out a trailer

let me know

Customer: replied 1 year ago.
without trailer
Expert:  Wayne replied 1 year ago.

Thank you for that

I believe the issue is in the dash valve,

as I have seen this before

I suggest to replace the dash valve

hope this helped you

Hi if this helped you

Please rate my answer 3 or more stars

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Not Poor/Bad service

Wayne

Customer: replied 1 year ago.
Wayne
I replaced the dash valve and it still is exhausting out the fitting on firewall marked 214
Expert:  Wayne replied 1 year ago.

Morning

OK, if that was not it , in most cases it would be

then it is the compound valve on the tractor

which controls the parking and service brakes

Customer: replied 1 year ago.
when I trace the hose to fitting 214 it comes from the exhaust of the trolly brake
Expert:  Wayne replied 1 year ago.

Thank you for that

I am not sure what is Trolley brake

the hand brake on steering

Column

Customer: replied 1 year ago.
Expert:  Wayne replied 1 year ago.

OK Thanks,

I have heard it called so many things

Broker bar, Hand Bar, Suicide Bar

OK, That would me that compound Valve, leaking inside, bypassing

I still believe that is your issue

Wayne

Customer: replied 1 year ago.
Where in system would I find that
Customer: replied 1 year ago.
Is there a number on it
Expert:  Wayne replied 1 year ago.

Hi

Sorry for delay, very busy day

trace the hose from your brake chamber to the valve

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