1997 Ford F350 Hard Pedal but No Panic Braking

1997 FORD F-350
179,000 MILES • V8 • 4WD • MANUAL
Avatar
KEVINKELLY
  • MEMBER
  • 1 POST
Initially, brake pedal was getting harder to push and the panic braking was getting less and less. Replaced booster, and it made pedal harder and had no effect on panic braking. Replaced booster again in case first one was bad. Pedal is harder still and absolutely no panic braking now. What have I done wrong or failed to do?
Oct 29, 2009 at 11:42 PM
Avatar
SEEUUSEE
  • MEMBER
  • 3 POSTS
I would check the vacum pump located just above the power steering pump on the driver side of the engine!
Jun 17, 2011 at 6:56 AM
Avatar
DOCFIXIT
  • ✓Experienced Mechanic
  • 18,828 POSTS
Gas or diesel?
Jun 17, 2011 at 7:20 AM
Avatar
SEEUUSEE
  • MEMBER
  • 3 POSTS
Diesel's have vacum pumps due to the lack of vacum on the intake and most of them being turbo that would have positive pressure at the intake instead of vacum!
Jun 17, 2011 at 10:06 AM
Avatar
SEEUUSEE
  • MEMBER
  • 3 POSTS
older chevy's had what was called the hydro brake system that ran off the power steering pump on the trucks if the power steering pump was low or defective you would have a hard brake pedal however the diesel cars in the earlier 80's had a vacum pump it was located on the back side of the intake at the firewall! and they were notorious for failing! Hope this helps!
Jun 17, 2011 at 10:45 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle