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Brake Power Booster

4 messages,  Last post on Oct 22, 2009 at 3:13 PM

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#1 of 4 Brake Power Booster by totaljett Oct 21, 2009 (4:14 pm)
What's happening. I have a 2000 Lincoln Ls with Advance Trac. There is a hissing noise coming from my brake booster and my brake pedal has to go all the way down to stop car. I'm also getting a p0171&p0174 code(lean fuel) and stalling. My mechanic said all this is coming from the vaccum leak from the brake booster. He didn't notice any hoses damaged and suggested I need a new brake power booster. So, does anyone have or had this problem. I'm hoping There's something we missed and don't have to replace the brake booster. If so, where can I get one(excluding dealer) because the advance trac model seems impossible to get. Even a used one is seeming challeging. Replies to this message: akirby (Oct 21, 2009 5:01 pm) totaljett (Oct 21, 2009 6:09 pm) totaljett (Oct 22, 2009 3:13 pm)
#2 of 4 Re: Brake Power Booster [totaljett] by akirby Oct 21, 2009 (5:01 pm)
Replying to: totaljett (Oct 21, 2009 4:14 pm) Not a common problem. I'd replace the vacuum hoses before I touched the booster. It won't hurt and it's a lot easier and cheaper. Replies to this message: totaljett (Oct 21, 2009 6:09 pm) totaljett (Oct 22, 2009 3:13 pm)
#3 of 4 Re: Brake Power Booster [akirby] by totaljett Oct 21, 2009 (6:09 pm)
Replying to: akirby (Oct 21, 2009 5:01 pm) Wise suggestion, that's exactly what I'm going to try first.
#4 of 4 Re: Brake Power Booster [akirby] by totaljett Oct 22, 2009 (3:13 pm)
Replying to: akirby (Oct 21, 2009 5:01 pm) Took it to another shop today and they said the vacuum hose and check valve of the brake booster were leaking. The booster itself was fine though. Replaced both leaking parts and now all is well.

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