Brake Booster replacement
Thread Starter
Racer
Joined: Mar 2015
Posts: 1,631
Likes: 299
From: TX
Brake Booster replacement
So my ongoing issue with my low brake pedal feel continues to get worst. I took it into the dealership and they quoted $5600 to replace the master cylinder with the OEM Advics parts and they also said I need to replace the brake booster.
How often does the brake booster fail, especially at 130k? I haven't had to replace them on the previous Toyotas that I have owned. Has anyone here replaced the brake booster on their GS or IS?
How often does the brake booster fail, especially at 130k? I haven't had to replace them on the previous Toyotas that I have owned. Has anyone here replaced the brake booster on their GS or IS?
Before swapping out the MC and the brake booster, have you flushed out the old brake fluids? Have you had someone press on the brake pedal and made sure the brake hoses are not expanding? How are the pads? If you havent replaced and properly bled the brakes that would be the first thing I would do. While your at it inspect the pads, and also make sure the rear calipers pins float smoothly. Removing the brake caliper pins and lubing them aswell as the backs of the pads will help make your car stop better and reduce noises.
If you havent checked all the above then I would can replace the brake master cylinder and also have performance steel belted brake lines installed.
SS brake lines are pretty cheap https://www.ebay.com/itm/STOPTECH-SS...sid=m570.l1313
If you havent checked all the above then I would can replace the brake master cylinder and also have performance steel belted brake lines installed.
SS brake lines are pretty cheap https://www.ebay.com/itm/STOPTECH-SS...sid=m570.l1313
Thread Starter
Racer
Joined: Mar 2015
Posts: 1,631
Likes: 299
From: TX
Yep. I've had the brakes flush but with the vacuum method that was posted on here last year. I re-did the rear brakes and lube the pins. New pads installed all around. I'm going to pick it up today or in the morning. I'm going to get a second option on this. I had the master cylinder replaced early this year.
If your brake booster was bad, you would know it. When a booster goes bad most likely you will hear hissing vacuum sound and the pedal will get hard. You can inspect the vacuum going to the brake booster, you might have a tiny vacuum leak or the check valve could be messed up. You can remove the huge vacuum line and with the engine running with your hand block off the line if there isnt hard vacuum then you might have a leak in the hose.
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Pole Position
Joined: Jan 2015
Posts: 289
Likes: 16
From: Oklahoma
So my ongoing issue with my low brake pedal feel continues to get worst. I took it into the dealership and they quoted $5600 to replace the master cylinder with the OEM Advics parts and they also said I need to replace the brake booster.
How often does the brake booster fail, especially at 130k? I haven't had to replace them on the previous Toyotas that I have owned. Has anyone here replaced the brake booster on their GS or IS?
How often does the brake booster fail, especially at 130k? I haven't had to replace them on the previous Toyotas that I have owned. Has anyone here replaced the brake booster on their GS or IS?
wow. Let's hope there is a cheaper solution. That is nuts.
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Thread Starter
Racer
Joined: Mar 2015
Posts: 1,631
Likes: 299
From: TX
I'm going to have my mechanic friend take a look at it this weekend or when it really starts to cool down in Dallas. I still have a butt load of mileage to put on my IS lease before the end of the year. I'll keep you guys updated.
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Mattkz
GS - 2nd Gen (1998-2005)
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Jan 11, 2019 09:20 AM