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Wayne
Wayne, Journeyman
Category: Medium and Heavy Trucks
Satisfied Customers: 8423
Experience:  worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling
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My primary system leaks air only with truck running

Customer Question

My primary system leaks air only with truck running
Submitted: 1 year ago.
Category: Medium and Heavy Trucks
Expert:  Wayne replied 1 year ago.

Hi i'm Wayne

I will help you with this

what are e working on , Make,model Year

can you hear where it is leaking from

let me know Please

Customer: replied 1 year ago.
2001 int 4900 single rear axle
Customer: replied 1 year ago.
Cant hear a leak. It builds up fine then begins to fall back to rebuild point .leaks with parking brake in or out
Expert:  Wayne replied 1 year ago.

Hi Thank you for that

that sounds like your air drier

is leaking, very common

to verify this, join the 2 big lines that go to drier

but drain tanks before you remove the lines

Hi, If this helped you

Please rate my answer 3 or more stars

Do not use the Poor/Bad rating,

Click on the more info request

Thank You

Wayne

Expert:  Wayne replied 1 year ago.

Hi Thank you for that

that sounds like your air drier

is leaking, very common

to verify this, join the 2 big lines that go to drier

but drain tanks before you remove the lines

Hi, If this helped you

Please rate my answer 3 or more stars

Do not use the Poor/Bad rating,

Click on the more info request

Thank You

Wayne

Expert:  Wayne replied 1 year ago.

Hi

I am just following up with you

did my answer help you

let me know ,Please

Wayne

Expert:  Wayne replied 1 year ago.

Hi just following up with you

did my answer help you

Let me know Please

Wayne