Brake Booster leaking???? Please help
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Junior User
Joined: Mar 2009
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Brake Booster leaking???? Please help
Well at first i thought that it was my power steering pump going out. I got under the truck and looked and could not find a leak. Well come to find out it is leaking where the resivoir meets with the brake booster. My questions is do i need to change out the whole brake booster i can i just change my resivoir? Please help.
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
If I understand, you are saying the brake fluid reservoir is leaking where it joins the master cylinder. If this is correct you need only buy the master cylinder and not the hydroboost. They are sold separately.
Posting Guru
Joined: Apr 2009
Posts: 2,447
Likes: 1
From: Northern Idaho
It's doubtfully brake fluid you're leaking if it's the brake booster. Mine was leaking too and it was leaking power steering fluid. I had a mechanic replace it for me. It took about an hour. The metal housing between the firewall and the reservoir needs to be replaced because as far as I know you can't take that apart and replace the seal.
Please someone correct me and educate my if I'm wrong.
Please someone correct me and educate my if I'm wrong.
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Posting Guru
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Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
Likes: 4
From: Grand Lake, La.
There should only be brake fluid or ATF leaking. You should see the difference in color to know what is leaking.
The brake booster gets its boost from the power steering pump and the power steering pump uses ATF, not power steering fluid.
The brake booster gets its boost from the power steering pump and the power steering pump uses ATF, not power steering fluid.
Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
Likes: 4
From: Grand Lake, La.
Not vacuum, pressure. We have a vacuum pump for the ESOF because a diesel does not make vacuum like a gas engine.