brake problems
Thread Starter
|
New User
Joined: Apr 2006
Posts: 12
Likes: 0
brake problems
I have a 1991 f-250 with 7.3. The brake pedal is hard. I put a new vacum pump,new booster and a new master cylinder bled the brakes and nothing helped. It feels like I have no power brakes the pedal is hard. Have new rotors on the front and new pads. Anything else I can check?
Lead Driver
Joined: Nov 2003
Posts: 6,900
Likes: 3
From: Campbell River, B.C.
Originally Posted by thefuzz472
yes it has vacum i can put my thumb over the hose and it sucks hard
Another thing to try is to compare how the brakes feel with or without the booster hooked up, a test in the drive way is all you need here (ie, don't actually drive it).
New User
Joined: Apr 2005
Posts: 20
Likes: 0
Been there, done that, I have a 1992 F 350,7.3, crew cab, changed Master cyl (1 -1/8"), vac pump, RABS sensor,(rear anti-lock Sensor part near floor and firewall) front calipers and brake rubber hoses, turned rotors, new pads, rear brake cyls, new shoes and kits, and most of the steel brake lines and have bleed the crap out of the system many times. I STILL don't have what I consider decent brakes- I can stand on the pedal with 2 feet, on a gravel road and can't lock any thing up.I have not changed the booster yet.I also get the brake light on sometimes while running up the hwy. ???? I was told by a buddy to run the master cyl. from a F450 a 1-1/4 bore would help! hope you get some answers Mike
Thread Starter
|
New User
Joined: Apr 2006
Posts: 12
Likes: 0
I put a vacuuum gage on the line going to the booster and it read 22 so i know i am getting plenty of vacuum.
Trending Topics
Senior User
Joined: Dec 2006
Posts: 146
Likes: 0
fuzz,
With the gauge still connected, press the brake pedal down fully a couple or three times. Check to see how long it takes to rebuild the vacuum. Mine had decent vacuum but took minutes to rebuild after using the brakes. Had to stand on them to get the beast to stop if I was in any kind of in-town traffic. New pump & all's been well for several months on my pickup.
Mike
With the gauge still connected, press the brake pedal down fully a couple or three times. Check to see how long it takes to rebuild the vacuum. Mine had decent vacuum but took minutes to rebuild after using the brakes. Had to stand on them to get the beast to stop if I was in any kind of in-town traffic. New pump & all's been well for several months on my pickup.
Mike
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
cr506
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
18
Apr 8, 2010 08:16 PM
tonysquirrel
Brakes, Steering, Suspension, Tires, & Wheels
2
Jul 25, 2004 04:59 PM
