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-   -   Brake Pedal travel question (https://www.toyota-4runner.org/4th-gen-t4rs/306664-brake-pedal-travel-question.html)

Montego Murph 08-05-2022 11:12 PM

Brake Pedal travel question
 
Question: How far down does your brake pedal go before you feel the brakes start to grab?

I have new brakes/rotors all around. New fluid flushed through, bled with speedbleeders. Parking brake is adjusted well and holds the car on a hill.
Brakes aren't spongy so I'm convinced it's not air. No calipers are hanging -- the brakes work fine, but I'm concerned about pedal travel.

It just seems that my pedal goes a lonnnng way to the floor before I get any braking action. The brakes just start to grab when I pass the resting position of the accelerator pedal.

The only reason I really noticed this is because my other car is an 02 Tacoma, and the brakes grab pretty high up on the pedal -- however it has drum brakes in the rear, so I would expect a different braking system to act differently.

If my pedal travel is too far... how would I go about adjusting it?

ArthurKotb 08-06-2022 09:57 AM

What happens if you pump the brakes? Pump them 2-3 times as you're stopping to see if you have air in the lines.

Disc brakes, as far as I know, don't have any adjustment. As the pads wear down they move closer to the rotor. Have you checked the master cylinder and vacuum brake booster?

AuSeeker 08-06-2022 04:28 PM

Quote:

Originally Posted by Montego Murph (Post 3751643)
Question: How far down does your brake pedal go before you feel the brakes start to grab?

I have new brakes/rotors all around. New fluid flushed through, bled with speedbleeders. Parking brake is adjusted well and holds the car on a hill.
Brakes aren't spongy so I'm convinced it's not air. No calipers are hanging -- the brakes work fine, but I'm concerned about pedal travel.

It just seems that my pedal goes a lonnnng way to the floor before I get any braking action. The brakes just start to grab when I pass the resting position of the accelerator pedal.

The only reason I really noticed this is because my other car is an 02 Tacoma, and the brakes grab pretty high up on the pedal -- however it has drum brakes in the rear, so I would expect a different braking system to act differently.

If my pedal travel is too far... how would I go about adjusting it?

There are several members here that have had the same issue, what they did was the "40 slow depressions and slow releases" of the brake pedal and it solved the issue for them, do a search of some of the brake replacement topics and you should find this discussed and how to exactly do the procedure.

If you have you already done this procedure and still have the issue I don't know what to tell you to try.

Edit: I did the search and found a couple of topics/posts that describes how to do the 40 pumps of the brake pedal procedure, 1 post links a PDF of the Toyota FSM/shop manual also describing how it's done.

In the link below read post #83 and it has the link to the post with the PDF if needed.

5th Gen 4Runner Brakes Upgrade (for 4th Gen 4Runner)

Montego Murph 08-06-2022 05:22 PM

Quote:

Originally Posted by AuSeeker (Post 3751717)
"40 slow depressions and slow releases" of the brake pedal and it solved the issue for them

This is AMAZING info and I'm going to try it right now.

How have I been on this forum/in communities since we got this thing in 2003 and I've NEVER stumbled upon this info in any searching or just random reading?

Going to give it a whirl. Thank you so much

Edit: It didn't seem to work for me, however I am going to try again and read that PDF with a fine tooth comb. It seems a little ambiguous whether the key should be on or off. I thought it was off, but I caught something in there about leaving the key ON for the second 20 pumps.


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