Low brake Pedal

ejsharp · #1 (**permalink**) 03-29-2008, 05:07 PM

I just installed the larger caliper mod in my 2000 Tundra. Everything appears to be just fine with the exception that the brake pedal seems a bit low.

I bled the entire system so I don't think there is air in the lines.

I'm wondering if the low pedal can be cause by the rear brakes being out of adjustment (the star wheel too loose).

Anyone have an idea or two as to what might cause the low pedal?

MEvang · #2 (**permalink**) 03-30-2008, 07:37 AM

I think you hit the nail on the head, it's most likely rear brake adjustment. Adjust the rear and I think you'll find the pedal much better.
Mike

ejsharp · #3 (**permalink**) 03-30-2008, 09:17 AM

Thanks Mike... I'll do that now.

I noticed that there are three or four lines going into the weight adjustment mechanism. Do you think an extensive bleeding there might release air in the lines? I did bleed there but only about 4 pump/release cycles.

ejsharp · #4 (**permalink**) 03-30-2008, 11:35 AM

Yep... that was it. Pedal is now up where its supposed to be. Truly amazing. If anyone on the forum needs to know how to adjust rear brakes... let me know.

BamZipPow · #5 (**permalink**) 03-31-2008, 03:59 AM

How did you bleed the system? Gravity? Extra person? Power bleeder?

BTW...My name is Earl, too!

Earls of the world...UNITE!!

ejsharp · #6 (**permalink**) 03-31-2008, 07:44 AM

I gravity bled the new calipers. I then had helper to pump/release the front and then the rear and back to the front again. Pedal was a bit low. I then adjusted rear star wheels. Pedal is now OK.

What is a power bleed? Sounds like something Rumsfeld would invent.

The Phoenix · #7 (**permalink**) 04-01-2008, 03:10 PM

Powerbleeder uses a vaccuum type system. As fluid is drawn from the bleed valve, new fluid is pulled from the power bleeder. This is to avoid the possibillity of ANY air ever entering the system.

-The Phoenix

greybeards22 · #8 (**permalink**) 04-01-2008, 10:16 PM

I just had a rear axle seal replaced. The original leaked onto the shoes causing the week brake action. When corrected the pedal was as new. The leaky seal is common for the 2000 with ABS brakes.

BamZipPow · #9 (**permalink**) 04-03-2008, 09:05 AM

Motive Products use pressure to push fluid through the system. It's based on a canister like the same kinda you use fer weed and bug control. Put the new fluid in the canister, connect the output on top of the master cylinder, pump up pressure in the system, and bleed out yer brakes.