Brakes locking up to where truck will not move at all.

Asked by Aug 08, 2016 at 09:39 AM about the 2011 Chevrolet Silverado 1500 LT Ext. Cab

Question type: Maintenance & Repair

Master cylinder was replaced and fluid flushed first time. both front calipers replaces with front hoses and flushed again the second time. Locked up again in McDonalds drive thru in Ft Pierce, FL on a trip from Orlando to Ft Lauderdale. Very frustrated what else could it be.
note: After all cools down it goes back to normal like nothing ever happened. (the truck has 52k miles on it)

2 Answers

26,585

Bleed them again, it sounds like trapped air is still in the system. Brake fluid gets hot from use, trapped air expands as well from the heat and causes brakes to self apply or lock up. Check the condition of the flexible lines as well, if they look bad they can restrict return flow to the master cylinder.

I did replace the front flex lines, but what is strange, the fluid is dirty looking. Mechanic said "that's weird I must of put a gallon of new fluid thru it when I flushed it". I will have him re flush and help him bleed it again. any thoughts on why it would be like dirty water?

Your Answer

Chevrolet Silverado 1500 Experts

  • #1
    John Carson
    Reputation
    2,480
  • #2
    Rowefast
    Reputation
    1,980
  • #3
    Andrew Olsen
    Reputation
    1,700
View All

Related Models For Sale

Used GMC Sierra 1500
898 Great Deals out of 65,451 listings starting at $1,995
Used Ford F-150
2,317 Great Deals out of 183,061 listings starting at $1,000
Used Chevrolet Silverado 2500HD
311 Great Deals out of 29,149 listings starting at $2,995
Used Dodge Ram 1500
371 Great Deals out of 10,941 listings starting at $1,500
Used Toyota Tundra
463 Great Deals out of 32,298 listings starting at $1,999
Used Toyota Tacoma
623 Great Deals out of 42,906 listings starting at $1,500
Used Ram 1500
983 Great Deals out of 111,892 listings starting at $6,499
Used Chevrolet Tahoe
652 Great Deals out of 39,510 listings starting at $1,000
Used Chevrolet Colorado
278 Great Deals out of 31,497 listings starting at $1,995
Used Ford F-250 Super Duty
377 Great Deals out of 44,647 listings starting at $1,799
Used Chevrolet Camaro
416 Great Deals out of 30,788 listings starting at $3,550
Used GMC Sierra 2500HD
110 Great Deals out of 13,470 listings starting at $2,999
Used Ford Mustang
725 Great Deals out of 38,316 listings starting at $895

Used Cars For Sale

2013 Chevrolet Silverado 1500 LT Ext. Cab For Sale
12 Great Deals out of 301 listings starting at $11,999

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.