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selbona

11-09-2010 02:13 PM

brake booster hissing

1995 F150 5.8, Auto

My brake booster is hissing. I hear it in the cabin. The brakes seem fine and I don't have any other problems, so I'm wondering is this safe to drive. I don't know where to start looking to chase down the leak, I'm just guessing that I'll need a new booster. Any ideas?

Steve83

11-10-2010 12:11 AM

Replace the booster. You don't need to open any hydraulic lines.

https://www.supermotors.net/getfile/...stallation.jpg

Yes, it's safe to drive, but you won't get the full power assist, and it's creating a vacuum leak for the engine.

selbona

11-10-2010 02:32 PM

Thanks. I'll get on it this weekend. I thought it was gonna be a PIA, but it looks like an easy one. Thanks again.

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