in dash brake warning light
Thread Starter
|
Senior User
Joined: Mar 2007
Posts: 316
Likes: 0
in dash brake warning light
I had a brake failure in my 78 f250 4x4 camper special. I fixed the problem, but the brake light in the dash is still on. How do I make it go out!? Wondering if this is the reason my brakes are not as powerful as they should be, or if I still have something to work out?
Todd
Todd
Junior User
Joined: May 2009
Posts: 87
Likes: 0
From: South Berwick, Maine
you need to reset the dual master cylinder spool to the center. it shifted to the side that lost brakes to shut them off so you don't lose the other side. best to read the repair manual to do it right. If you are going to own an old truck buy the Ford factory manuals, cd or paper. I payed $15 for the complete set for my '76. get the wiring diagrams too, your life will be soooo much easier
Post Fiend
Joined: Apr 2008
Posts: 8,261
Likes: 15
From: Big Sky Country
Agreed, they can often be found on ebay for pretty cheap, i paid $25 for my 5 volume set, worth every penny.
Postmaster
Joined: Jul 2001
Posts: 4,956
Likes: 10
From: MD
Ensure the master cylinder is full of brake fluid and the system is free of air.
After that,
Get in the truck and start the engine. Slowly push the brake pedal to the floor. It should go out. If it doesn't, you still have brake problems.
After that,
Get in the truck and start the engine. Slowly push the brake pedal to the floor. It should go out. If it doesn't, you still have brake problems.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 790
From: Simi Valley, CA
C8AZ2B264A .. Low Brake Fluid Warning Light Switch
Fits: 1968/79 F100/350 / 1969/79 Econoline / 1968/70 Passenger Cars
The switch threads into the brake differential proportioning valve.
What happens: The plastic switch develops cracks around the threads causing brake fluid to seep out.
When that occurs, the low brake fluid warning light on the dash comes on...and stays on.
Fits: 1968/79 F100/350 / 1969/79 Econoline / 1968/70 Passenger Cars
The switch threads into the brake differential proportioning valve.
What happens: The plastic switch develops cracks around the threads causing brake fluid to seep out.
When that occurs, the low brake fluid warning light on the dash comes on...and stays on.
Tuned
Joined: May 2008
Posts: 302
Likes: 1
From: new zealand but a brit
1978 brake proportianal valve
hi does anyone have the part number for the brake proportional valve for a 1978 f250 thanks garymartin@vodafone.co.nz
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 790
From: Simi Valley, CA
hi does anyone have the part number for the brake proportional valve for a 1978 f250 thanks garymartin@vodafone.co.nz
Trending Topics
Thread Starter
|
Senior User
Joined: Mar 2007
Posts: 316
Likes: 0
I tried to use the procedure listed in one of my old Chiltons truck manuals. It did not work. I manually reset the spool on the bench. All is well now!
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / Worst Features Of The 2025+ Ford Expedition
Brett Foote
10 Ways Ford is LOSING to the Competition
Joe Kucinski
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
Todd Wenke
1948 - 1956 F1, F100 & Larger F-Series Trucks
3
Nov 7, 2015 05:10 PM
Tombstone Todd
1948 - 1956 F1, F100 & Larger F-Series Trucks
15
Nov 29, 2012 01:10 PM
todd jo
1973 - 1979 F-100 & Larger F-Series Trucks
6
Jun 22, 2009 02:51 AM
