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Malibu Another long running GM name, the Malibu has overcome many changes to be one of the top mid size sedans heading into its eight generation.

Chevrolet Malibu
This area is for FWD models 1997 and newer
Platform: N-, Epsilon, Epsilon II.

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  #1  
Old 05-27-2012, 12:13 PM
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Join Date: May 2012
Posts: 3
Default Bad Brand New Master Cylinder

2003 Malibu.
Brake pedal going all the way down to floor so thought I would start with replacing the master cylinder.
Bench bleeding the new one (a "new" Fenco from Autozone) the following happens:
When pushing the rod in, forward port immediately pushes fluid through.
Rear port does not send any fluid through until rod is almost at the end of it's travel.
Thinking there may be a lot of air the rear port, I repeated pushing in the rod 10 times with the same results
This looks like a bad master cylinder to me.
Any opinions?

thanks
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  #2  
Old 05-28-2012, 06:42 AM
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Join Date: Apr 2012
Location: Smithtown
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autopartsshop dautopartsshop
Default Bad Brand New Master Cylinder

I had the same problem and found that fluid was leak from the brake caliper. I changed the caliper and problem solved. Have you replaced the brake booster?
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  #3  
Old 05-28-2012, 07:11 AM
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Posts: 3
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I am not losing any fluid so no leaks at the calipers.
Have not replaced brake booster.
Thought I would start with the master cylinder.
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  #4  
Old 05-28-2012, 10:36 AM
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Join Date: Apr 2012
Location: Miami, FL.
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Are you using the correct bench bleeding technique?
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  #5  
Old 05-31-2012, 03:43 PM
kevinkpk's Avatar
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Join Date: Jul 2011
Posts: 2,652
not anymore Kevin Koloff
Default

Quote:
Originally Posted by Philn1 View Post
2003 Malibu.
Brake pedal going all the way down to floor so thought I would start with replacing the master cylinder.
Bench bleeding the new one (a "new" Fenco from Autozone) the following happens:
When pushing the rod in, forward port immediately pushes fluid through.
Rear port does not send any fluid through until rod is almost at the end of it's travel.
Thinking there may be a lot of air the rear port, I repeated pushing in the rod 10 times with the same results
This looks like a bad master cylinder to me.
Any opinions?

thanks
Take it bake to AZ, and explain it to them, becuase it's new dosen't mean squat.
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  #6  
Old 05-31-2012, 05:09 PM
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Join Date: May 2012
Posts: 3
Default Took it Back

I am using correct bleed procedure.
Got a replacement from Napa. Bled fine.
Thanks,
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Old 05-31-2012, 05:09 PM
 
 
 
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05, 1, bad, brake, chevy, cylinder, cylinderport, cylinders, fenco, malibu, master, nmc, push, replace, sizes


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