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2000 escalade 5.3 air in the brakes system. After I

automatically with scanner bleed the...
2000 escalade 5.3 air in the brakes system. After I automatically with scanner bleed the abs module then did the rear brakes lot of air then did the front not much air but still the pedal fills low when start the truck and applied the brakes. Also, every time I applied the brakes when engine running, I can see gurgling on the master cylinder. Any ideas? Thanks
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Answered in 15 minutes by:
10/17/2017
Mechanic01
Mechanic01, ASE Certified Technician
Category: Chevy
Satisfied Customers: 3,348
Experience: Owner at Baltic investments
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Hello my name is ***** ***** welcome to just answers! I will be assisting you with all of your vehicle questions today. Give me one moment while I review your question and come back with a answer. Please be aware I do not know your skill level or abilities so I will be asking a lot of questions and in a lot of cases we will respond to each other quite a lot before we find a solution. As far as phone calls are concerned that is the system prompting you, not me, and they do cost more money, I prefer text but in some cases a phone call is required. If I don’t answer right away or quickly in conversation I am helping another customer or have stepped out for a moment and will respond as soon as I can. Ok lets get started!

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So there could be a few issues, but with the brake master gurgling like that is a good indicator that it is bad, also I like the tube and bottle bleed method, I have never had an issue bleeding this way before.

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Customer reply replied 9 months ago
The master cylinder is new and I follow the procedure to bleed before installing

you must be getting some air in somewhere, is it a reman master? and what bleeding method did you use?

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Customer reply replied 9 months ago
Apologies I install renan cylinder and bench bleed until couldn't compress piston . And bleed the brakes from rear RR, LR, RF, LF. And still gurgling in the master cylinder. Which is the same problem I had in the old master cylinder. Also, the page won't allow me to rate your services

it should be ready to rate now, so have you made any adjustments to the pedal or rod that attaches to the brake pedal

Mechanic01
Mechanic01, ASE Certified Technician
Category: Chevy
Satisfied Customers: 3,348
Experience: Owner at Baltic investments
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Mechanic01 and 87 other Chevy Specialists are ready to help you
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Customer reply replied 9 months ago
No adjustment on the pedal, only at the rear brakes. I changed the master cylinder because of the gurgling. By t like I mentioned before bleed lots of air out the rear brakes and small amount to the front but still low pedal and the gurgling in the master cylinder engine running and pushing the brake pedal

you may still have a bad master, those re mans and sometimes new are bad out of the box

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Customer reply replied 9 months ago
Thanks, ***** ***** going to replace the master cylinder. Question, why is that when pumping the brake pedal it gets hard but no gurgling in the master cylinder engine off. Start the engine, step on the brake and starts gurgling .

just making sure your master is the normal master and not a hydroboost?

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