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

109,965

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.
495

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
    1,730
  • #2
    Tom Demyan
    Reputation
    1,680
  • #3
    tennisshoes
    Reputation
    1,300
View All

Related Models For Sale

Used Chevrolet Corvette
114 Great Deals out of 16,238 listings starting at $3,995
Used Ford Mustang
348 Great Deals out of 41,846 listings starting at $1,488
Used Mercedes-Benz SL-Class
54 Great Deals out of 3,367 listings starting at $3,995
Used Porsche 911
121 Great Deals out of 5,285 listings starting at $10,099

Used Cars For Sale

2005 Ford Thunderbird For Sale
72 listings starting at $7,500
2004 Ford Thunderbird For Sale
7 Great Deals out of 131 listings starting at $8,499
2003 Ford Thunderbird For Sale
169 listings starting at $7,500
2002 Ford Thunderbird For Sale
6 Great Deals out of 331 listings starting at $7,000

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.