1963 T Bird. I replaced front brakes with disc conversion kit plus added a new master cylinder and a proportioning valve but brakes won't release, any suggestions

Asked by Apr 11, 2015 at 04:18 PM about the 1963 Ford Thunderbird

Question type: Maintenance & Repair

2 Answers

105,485

So it could be a stuck proportioning valve or the shaft is too long going into the master cylinder, it maybe adjustable but you will have to disconnect it from the brake pedal and remove it to find out.

1 of 1 people found this helpful.
475

There is a possibility your engine is running hot & expanding the pressure on fluid in master cylinder.It will not lock up if engine is cold.

Your Answer

Ford Thunderbird Experts

  • #1
    Larry Sturgis
    Reputation
    1,660
  • #2
    Tom Demyan
    Reputation
    1,630
  • #3
    tennisshoes
    Reputation
    1,280
View All

Related Models For Sale

Used Ford Mustang
598 Great Deals out of 39,962 listings starting at $1,895
Used Chevrolet Corvette
170 Great Deals out of 17,441 listings starting at $3,000
Used Mercedes-Benz SL-Class
67 Great Deals out of 3,550 listings starting at $4,000

Used Cars For Sale

2005 Ford Thunderbird For Sale
75 listings starting at $7,500
2004 Ford Thunderbird For Sale
4 Great Deals out of 141 listings starting at $7,777
2003 Ford Thunderbird For Sale
4 Great Deals out of 176 listings starting at $7,995
2002 Ford Thunderbird For Sale
16 Great Deals out of 332 listings starting at $6,800

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.