Soft brake pedal
06-22-2010, 10:08 AM
#11
Moderator (Ret.)
06-22-2010, 10:36 AM
#12
How many licks to the center of a tootsie roll pop?
06-22-2010, 01:23 PM
#13
The most common reason for a soft/spongy pedal is air or moisture in the brake line. Both do not compress within the brake lines, and could be causing your "soft pedal" condition. Take the truck to a brake shop; ask them to perform a flush/brake bleed. This will remove and replace the possibly contaminated brake fluid with fresh DOT4/5 fluid, and remove any possible air and/or moisture. Brake fluid should be flushed every 3 to 4 years anyway, unless you are using pure DOT 5 fluid, and the brakes have not been worked on (system was "opened" allowing air/moisture to enter).
06-28-2010, 10:36 AM
#14
I have to agree with Bucko on this one...I had the exact same issue right off the lot and two dealers later they decided to bleed the brakes and it solved the problem. Good advice Bucko!
05-26-2013, 10:25 PM
#15
This adjustment solved my soft pedal issue. As far as drag I performed several tests to insure zero drag-including temping the rotors before and after. Someone mentioned the 2 bolts securing the master cylinder to the booster were 13mm. I found a deep well 1/2 inch socket will work as well.
01-13-2014, 09:49 AM
#18
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Hate to bring up an old thread but I just got a 98 F 150 4.6 as my beater vehicle. My brakes are definitely spongy compared to my other vehicles. I have installed all new pads and bled the brakes and they are still spongy. These brakes suck in my opinion. Shouldnt be this hard to have good feeling brakes.
02-05-2017, 06:21 PM
#19
Yep. You're the man on this one for sure. It can be a DIY kind of thing if you have a power-bleeder setup, but Midas or NTB or most any transmission/brake shop can do it for about 75 bucks and you wont even get dirty.