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Discussion Starter · #1 ·
couple months back I got the dreaded "air leak" as well as the PS started maoning on my 2010 drw cpd Searched it :thumbsup:, pulled the teflon liner from the line on the res as most have done. PS is still moaning :banghead:
Fluid still looks clean, it was barely low to start with.
Searched again, only found issues on mostly 3rd gen back. Most said that they flushed the fluid and it cured 90% of them.
Anyone having this on a 4th gen?
Question: when you flush the system, do you have to bleed all of the brakes at the caliper?
Any help is appreciated!
 

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Cummins Nut
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340 Posts
I had the same problem, dealer replaced the line and hydro boost unit under warranty no more problems...
:party018:
 

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throw some synthetic ATF at it and make sure it's topped off and you should be good to go.
 
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