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I am having an issue with the hydraulic breaks on a 2005…

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I am having an...

I am having an issue with the hydraulic breaks on a 2005 international 4300 box truck. The truck builds pressure for the breaks, but if you are sitting at a stop light and keep your foot on the pedal, it looses pressure slowly until it disappears

Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. The Heavy Equipment Mechanic I'm going to connect you with knows all the tricks and shortcuts. Is there anything else important you think the Heavy Equipment Mechanic should know?

So it builds pressure fine, but you lose it if you hold down consistently. You have good enough breaks to stop, but you can't sit at a red light without losing all your pressure

Submitted: 2 years ago.Category: Medium and Heavy Trucks
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Answered in 2 minutes by:
3/1/2016
Technician: Wayne, Journeyman replied 2 years ago
Wayne
Wayne, Journeyman
Category: Medium and Heavy Trucks
Satisfied Customers: 11,309
Experience: worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling
Verified

Hi I'm Wayne

I will help you with this

What you are describing is a faulty master cylinder

it is by-passing internally , I suggest to replace it

I hope this helped you

Hi if this helped you

Please rate my answer 3 or more stars

If you need more info, use request button

Not Poor/Bad service

Wayne

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Technician: Wayne, Journeyman replied 2 years ago

HI

I am just following up with you

Did my answer help you

let me know , Please

Wayne

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