LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Bleeding the Brakes

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Old 01-20-03, 09:35 AM
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Ashbypa
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Question Bleeding the Brakes

I am going to replace the front brake hoses on my 91 LS.

I am getting an error 19 from the TRAC system - which basically says I am losing pressure somewhere. Since I just replaced my front struts - I suspect I may have stretched/compounded a problem with the hoses. Especially since I cannot find a leak in the system anywhere. After 155K miles, they're due for replacement anyway.

I am just looking for confirmation as to what I am doing.


Replace one hose - bleed that line until no air.
Replace the other - bleed that line until no air.
Bleed the TRAC system.
When bleeding the system - the manaul says have the car running.

Do I need to bleed the rears? Just for good measure?

Thanks

Anderw
Old 01-23-03, 02:30 PM
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SQ-LS
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I would reccomend flushing the whole thing and bleed the brakes again correctly.

Passenger rear, then drivers rear, then passenger front, and then drivers front.

What you did previously might have gotten air that has got into the lines and went into the back.
So since your doing all this mine as well bleed them anyways, because when was the last time you bleed your brakes?
Old 01-24-03, 04:22 PM
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Ashbypa
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Thanks.

Actually I had planned on doing the whole car.

I do change the brake fluid yearly. This is a heavy car with wimpy brakes that get hot.

Interestingly enough is I have not gotten the TRAC errors at all in the past few days??

Thanks again.

Andrew
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