Drivetrain Tech General discussion of drivetrain for the Ford Ranger.

Brakes still messed up, need help, please!

  #1  
Old 10-04-2006
MadMaxRanger's Avatar
Member
Thread Starter
Join Date: Oct 2006
Location: Knoxville, Tn
Posts: 4
Brakes still messed up, need help, please!

I replaced my brake booster cause the old one just rotted out or imploded. I tried to put the new one one which came with a new master cylinder attached to it. Trying my hardest to bleed the master cylinder properly to keep air from getting into the lines i still failed. My buddy helped me install new rear wheel cylinders since the old ones just broke when the bleeder screws were attempted to be removed. We bled all the brakes for a long time and not allowing the resevoir to run dry, the brakes are still messed up. The brakes are working at 60% compared to how they were before the booster crapped out. It seems that (1) there maybe air or something wrong with the RABSII Electro-Hydraulic valve=located inside the driverside frame rail. (2) the booster piston is not adjusted right to make the proper contact with the inside bore of the master cylinder. WHAT happens when applying the brakes fully with the pedal at the floor =I hear the front brakes making a grinding type noise or just noise from the front brake area. The brake pedal seems much stiffer now and just not near as responsive as they always have before. I would love to try and fix this myself but am at a loss for what to do about them. CAn somebody please help me out, it's a 93 XLT 4.0 4wd reg. cab truck, thanks!!!
 
  #2  
Old 10-04-2006
casfz1's Avatar
Member
Join Date: Aug 2005
Location: southgate, mi
Posts: 1,989
Did you adjust the rod inbetween the master cylinder and the brake booster? It sounds like it is to long and not allowing full master cylinder piston travel.

Chad
 
  #3  
Old 10-07-2006
MadMaxRanger's Avatar
Member
Thread Starter
Join Date: Oct 2006
Location: Knoxville, Tn
Posts: 4
Hey Thanks for the advice CAS FZ1; I thought that could be it but everyone told me, including Autozone, that since the booster came with a refurbished master cylinder that they had adjusted the booster adjustment rod to spec. I reckon i will unbolt that master cylder set up and shorten the adjuster rod , I really hope that is it because that darn ABS valve in the frame rail can't be bleed, we tried , and also according to another old post here , it must be removed and taken to the dealer. It's a real pain in the butt to haul a boat with 60% of ones brakes working, now i drive even more like a granny, lol. Tough ole truck things just finally started braking on it last fall, ie; brake booster, fuel pressure regulator, but nothen major, knock on wood. Thanks man, I'll keep the progress updated here! peace,
 
  #4  
Old 10-07-2006
casfz1's Avatar
Member
Join Date: Aug 2005
Location: southgate, mi
Posts: 1,989
Go buy a chiltons or a Hayes manual they will tell you the proper rod length.

Chad
 
  #5  
Old 10-07-2006
MadMaxRanger's Avatar
Member
Thread Starter
Join Date: Oct 2006
Location: Knoxville, Tn
Posts: 4
The Haynes just shows an exploded view but no specs on the secondary piston but thanks again , gonna go try to shorten it, thanks
 
  #6  
Old 10-08-2006
MadMaxRanger's Avatar
Member
Thread Starter
Join Date: Oct 2006
Location: Knoxville, Tn
Posts: 4
Making the piston shorter did not work but making it longer seems to have helped! It feels like the brakes are at 80% maybe, something else is messed up but it's defenitely better. Thanks
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
cheese_man
General Technical & Electrical
5
12-17-2018 11:32 PM
Austin1
General Ford Ranger Discussion
22
11-27-2011 03:34 PM
BurningRANGERtires
Suspension Tech
30
08-15-2008 01:34 AM


Thread Tools
Search this Thread
Quick Reply: Brakes still messed up, need help, please!


Contact Us - Sitemap - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.