Brake Problem Again
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Freshman User
Joined: Aug 1999
Posts: 48
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Brake Problem Again
Hey Guys,
I thought I had the brake light staying on problem
fixed but it's back again.
I've replaced the master cylinder 3 times now, installed a new brake light switch twice. I've rebled the brakes twice, went through 2 cans of brake fluid.
Has anybody else ever had this problem?
I thought I had the brake light staying on problem
fixed but it's back again.
I've replaced the master cylinder 3 times now, installed a new brake light switch twice. I've rebled the brakes twice, went through 2 cans of brake fluid.
Has anybody else ever had this problem?
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Brake Problem Again
WR, The action is controled by the pedal, check and see if the pedal is fully returned. Pull it all the way back while someone is looking at the lights.
John
John
Posting Guru
Joined: Jul 1999
Posts: 1,558
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From: Inthepast
Brake Problem Again
John is correct and to the point as usual. On the 65/66 "single resevoir" Master Cylinder (MC), the brake lights are controlled by a pressure switch mounted on the MC. If your pedal is not returning to zero because of a problem with the pedal assy, or due to the push rod being too long, the result will be residual pressure trapped in the system which will trigger the false brake light condition and make them come on when they shouldn't. Since it hasn't been determined whether you have the correct MC or pushrod, you really should measure the length of the rod (center of hole to push end) and post it. Also measure the size of the master-cylinder bore and depth of the push-rod hole. You need to eliminate sources of trouble. Otherwise, you may never hit on the solution.
Stock Man
1967 Galaxie 500 Convertible (HELP!---I need 15 x5 factory rims)
1967 F-250 FE 390 4wd
1966 F-250 I6 240 2wd LWB Flare Side
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Stock Man
1967 Galaxie 500 Convertible (HELP!---I need 15 x5 factory rims)
1967 F-250 FE 390 4wd
1966 F-250 I6 240 2wd LWB Flare Side
<a href="http://www.hometown.aol.com/tbeeee">http://www.hometown.aol.com/tbeeee</a>
Posting Guru
Joined: Jul 1999
Posts: 1,558
Likes: 0
From: Inthepast
Brake Problem Again
BEFORE YOU DO ANYTHING.....test to see if the lights are still on, then simply remove the push rod. Observe the lights. If off you have now isolated the cause. If on more investigation needed.
Stock Man
1967 Galaxie 500 Convertible (HELP!---I need 15 x5 factory rims)
1967 F-250 FE 390 4wd
1966 F-250 I6 240 2wd LWB Flare Side
<a href="http://www.hometown.aol.com/tbeeee">http://www.hometown.aol.com/tbeeee</a>
Stock Man
1967 Galaxie 500 Convertible (HELP!---I need 15 x5 factory rims)
1967 F-250 FE 390 4wd
1966 F-250 I6 240 2wd LWB Flare Side
<a href="http://www.hometown.aol.com/tbeeee">http://www.hometown.aol.com/tbeeee</a>
Lead Driver
Joined: Feb 2002
Posts: 7,966
Likes: 595
From: Greater Austin, Texas
Brake Problem Again
Do you mean your brake lights, i.e., the ones on the rear of the bed, are staying on, or is the Brake System warning light that is on the lower left hand side of the dash?
New User
Joined: Jan 2008
Posts: 0
Likes: 24
Brake Problem Again
This thread is 5 months old.
IIRC
I'm pretty sure he had the problem fixed back in Sept or Oct.
Dennis
Please Don't Ask Me Any Tough Questions As:
"I'm Saving My Memory For When I Develop Alzheimer's"
78 F-150 429CJ,Silver
w/Explorer Pkge.
641/2-Mustang 260,Pre-World's Fair Car.
64-Fairlane500 S/C waiting for a 390-4spd.
68-Mustang 289-Sunlit Gold 80,892Mi
78-Buick LeSabre 403 4V
84 Volvo DL Wagon
IIRC
I'm pretty sure he had the problem fixed back in Sept or Oct.
Dennis
Please Don't Ask Me Any Tough Questions As:
"I'm Saving My Memory For When I Develop Alzheimer's"
78 F-150 429CJ,Silver
w/Explorer Pkge.
641/2-Mustang 260,Pre-World's Fair Car.
64-Fairlane500 S/C waiting for a 390-4spd.
68-Mustang 289-Sunlit Gold 80,892Mi
78-Buick LeSabre 403 4V
84 Volvo DL Wagon
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Brake Problem Again
Dennis look again. :-)
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John
jowilker email me
[link:www.ford-trucks.com/users/jowilker|My Club FTE Page] Member since 01 01
[link:www.ford-trucks.net/users/jowilker/NCFTE.html|NCFTO] North Carolina Ford Truck Owners Group
In the cool still quiet of night, you can hear chevies rusting away.
http://www.clubfte.com/users/jowilker/USFlag.gif
John
jowilker email me
[link:www.ford-trucks.com/users/jowilker|My Club FTE Page] Member since 01 01
[link:www.ford-trucks.net/users/jowilker/NCFTE.html|NCFTO] North Carolina Ford Truck Owners Group
In the cool still quiet of night, you can hear chevies rusting away.
Trending Topics
New User
Joined: Jan 2008
Posts: 0
Likes: 24
Brake Problem Again
DUH ME !
Who says I need glasses to make a spectacle of myself?
Re-phrase ,
His post is 29 months old.
*Note: September 1999
Dennis
Please Don't Ask Me Any Tough Questions As:
"I'm Saving My Memory For When I Develop Alzheimer's"
78 F-150 429CJ,Silver
w/Explorer Pkge.
641/2-Mustang 260,Pre-World's Fair Car.
64-Fairlane500 S/C waiting for a 390-4spd.
68-Mustang 289-Sunlit Gold 80,892Mi
78-Buick LeSabre 403 4V
84 Volvo DL Wagon
Who says I need glasses to make a spectacle of myself?
Re-phrase ,
His post is 29 months old.
*Note: September 1999
Dennis
Please Don't Ask Me Any Tough Questions As:
"I'm Saving My Memory For When I Develop Alzheimer's"
78 F-150 429CJ,Silver
w/Explorer Pkge.
641/2-Mustang 260,Pre-World's Fair Car.
64-Fairlane500 S/C waiting for a 390-4spd.
68-Mustang 289-Sunlit Gold 80,892Mi
78-Buick LeSabre 403 4V
84 Volvo DL Wagon
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New User
Joined: Jan 2008
Posts: 0
Likes: 24
Brake Problem Again
When you REPLIED it automatically brought it to the top of the order.
The message boards show every post chronologically.
Dennis
Please Don't Ask Me Any Tough Questions As:
"I'm Saving My Memory For When I Develop Alzheimer's"
78 F-150 429CJ,Silver
w/Explorer Pkge.
641/2-Mustang 260,Pre-World's Fair Car.
64-Fairlane500 S/C waiting for a 390-4spd.
68-Mustang 289-Sunlit Gold 80,892Mi
78-Buick LeSabre 403 4V
84 Volvo DL Wagon
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