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

35,175

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
    3,450
  • #2
    Rowefast
    Reputation
    2,390
  • #3
    Andrew Olsen
    Reputation
    2,140
View All

Related Models For Sale

Used GMC Sierra 1500
722 Great Deals out of 58,462 listings starting at $1,900
Used Ford F-150
2,344 Great Deals out of 215,477 listings starting at $1,300
Used Chevrolet Silverado 2500HD
361 Great Deals out of 29,859 listings starting at $2,500
Used Dodge Ram 1500
316 Great Deals out of 9,549 listings starting at $800
Used Toyota Tundra
478 Great Deals out of 38,526 listings starting at $1,999
Used Ram 1500
901 Great Deals out of 119,059 listings starting at $5,995
Used Toyota Tacoma
439 Great Deals out of 44,078 listings starting at $1,995
Used Chevrolet Tahoe
527 Great Deals out of 36,655 listings starting at $1,375
Used Chevrolet Colorado
295 Great Deals out of 41,682 listings starting at $1,900
Used Ford F-250 Super Duty
374 Great Deals out of 42,218 listings starting at $1,600
Used Chevrolet Camaro
224 Great Deals out of 28,922 listings starting at $3,900
Used GMC Sierra 2500HD
142 Great Deals out of 15,260 listings starting at $3,500
Used Dodge Charger
242 Great Deals out of 32,689 listings starting at $1,800
Used Ford Mustang
270 Great Deals out of 37,082 listings starting at $2,150

Used Cars For Sale

2018 Chevrolet Silverado 1500 For Sale
74 Great Deals out of 89,685 listings starting at $18,998
2017 Chevrolet Silverado 1500 For Sale
138 Great Deals out of 9,742 listings starting at $16,995
2016 Chevrolet Silverado 1500 For Sale
173 Great Deals out of 6,531 listings starting at $13,995
2015 Chevrolet Silverado 1500 For Sale
263 Great Deals out of 10,117 listings starting at $10,995

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.