Bleeding Brakes Problem

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Oct 19, 2007 | 11:57 AM

nytoy

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Driver

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From: ny

Bleeding Brakes Problem

So I changed all four pads. For the rears, I opened the bleeder when pushing the piston back in, squirting brake fluid out. For the fronts I did not.

Now when I go to bleed the brakes, by having someone pump the brake pedal up and me open the rear bleeders, nothing comes out, and the pedal doesn't move. If I do the front it bleeds normal. I tried leaving the bleeder in the rear open, with it hooked up to the bottle half filled with brake fluid and pumping the brakes, and nothing got sucked in or pushed out.

Any ideas?

Oct 19, 2007 | 12:01 PM

GSteg

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From: CA

Did you leave the ignition on the ON position (without engine running)?

Oct 19, 2007 | 02:30 PM

nytoy

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Driver

Joined: May 2007

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From: ny

Quote:

Originally Posted by GSteg

Did you leave the ignition on the ON position (without engine running)?

Ok I just put it ON position and that did the trick. But the pedal still feels spongy. I'm guessing I need to have the dealer bleed the ABS mechanism??

Last edited by nytoy; Oct 19, 2007 at 04:12 PM.

Oct 20, 2007 | 11:05 AM

gs-ireland

Pole Position

Joined: Nov 2006

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From: IE

The brakes are spongy as its not a standard master-cylinder design, but if you think you got air into the ABS actuator system you need to either get your hands on a Toyota ABS check tool, part no 09990-00150 with the correct cable (google it), it does cost ~$500, or just bring it to a Lexus dealer

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Last edited by gs-ireland; Oct 20, 2007 at 11:10 AM.

Oct 22, 2007 | 01:51 PM

jonathancl

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From: Philadelphia

Why did you bleed?

There's no need to do so for changing pads; just push the calipers in.

Oct 24, 2007 | 04:02 PM

bee0818

Pole Position

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From: WA

Quote:

Originally Posted by jonathancl

Why did you bleed?

There's no need to do so for changing pads; just push the calipers in.

I believe it is recommended every 2 years or 24,000 miles

Oct 27, 2007 | 07:20 PM

lexusondubs

dubsonlexus

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From: Clearwater,FL

Quote:

Originally Posted by bee0818

I believe it is recommended every 2 years or 24,000 miles

i have never heard of that

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Oct 27, 2007 | 08:25 PM

GSteg

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From: CA

Quote:

Originally Posted by nytoy

Ok I just put it ON position and that did the trick. But the pedal still feels spongy. I'm guessing I need to have the dealer bleed the ABS mechanism??

How spongy is it?

A stock GS definitely feels spongy. Just as long as you dont have to put your pedal to the floor just to get some braking power, I think you're fine. My car still has that spongy feel, despite changing the pads. The problem is our calipers. By changing that alone (upgrade to supra or aftermarket calipers), you'll notice a big difference in pedal feel. I'm going to do a caliper swap soon because I also hate the stock feel.