Is it the master cylinder?

10

Asked by Sep 21, 2015 at 07:50 AM about the 2008 Chevrolet Silverado 1500 LT1 Extended Cab 4WD

Question type: Maintenance & Repair

Replaced front rotors and brake pads.  Went to depress pedal and it went to the floor.  Did not come up after pumping.  Did not take any lines off, only compressed pistons to accomodate new pads.  Pumped brakes, held pedal down  and opened bleeder and continue to get air coming out after every pumping.  Pedal continues to go to the floor with no resistance felt.  .

8 Answers

105,505

It sounds as it is the booster, not the mater cylinder...

1,405

if there is air every time you pump it you have a hole some place. if you pump it up does the peddle get hard at any point? i think one of your brake lines is bad are they wet

10

Could not find any leak anywhere. Have all wheels removed and pulled boots from wheel cylinders and checked pistons. Am curious why you would think it is the booster? Pedal does not get hard at any point at all.

49,145

When did you first bleed the brakes? If you bled the brakes after doing the pad change I am thinking you pushed the brake pedal down too far causing damage to the inside of the master cylinder. I always put a piece of wood under the pedal when doing this to keep the pedal off of the floor. Sometimes pushing the pedal farther than it has gone before will damage the cups / seals inside the master cylinder.

Best Answer
49,145

Read the manual bleeding paragraph. http://www.linnbenton.edu/auto/brake/bleed.html

49,145

http://forum.miata.net/vb/archive/index.php/t-296237.html

10

Changing the master cylinder did the trick. Thanks Bob!

1 of 1 people found this helpful.
49,145

Glad you got it fixed and we appreciate the follow up.

Your Answer

Add photo

Related Questions

Silverado 1500

Looking for a Used Silverado 1500 in your area?

CarGurus has 183,484 nationwide Silverado 1500 listings starting at $1,495.

ZIP:

Search Chevrolet Silverado 1500 Questions

Chevrolet Silverado 1500 Experts

#1 John Carson
John Carson
Reputation 2,410
#2 Rowefast
Rowefast
Reputation 1,950
#3 tenspeed
tenspeed
Reputation 1,650
View All

Related Models For Sale

Used GMC Sierra 1500
805 Great Deals out of 68,893 listings starting at $1,800
Used Ford F-150
2,184 Great Deals out of 194,804 listings starting at $290
Used Dodge Ram 1500
418 Great Deals out of 10,964 listings starting at $1,000
Used Chevrolet Silverado 2500HD
308 Great Deals out of 28,701 listings starting at $1,500
Used Toyota Tundra
464 Great Deals out of 34,863 listings starting at $2,500
Used Toyota Tacoma
542 Great Deals out of 43,391 listings starting at $1,995
Used Chevrolet Tahoe
588 Great Deals out of 33,114 listings starting at $1,500
Used Chevrolet Colorado
248 Great Deals out of 27,602 listings starting at $1,000
Used Ford F-250 Super Duty
332 Great Deals out of 44,731 listings starting at $1,450
Used Dodge Charger
533 Great Deals out of 28,886 listings starting at $2,500
Used Nissan Titan
177 Great Deals out of 19,055 listings starting at $3,995

Used Cars For Sale

2017 Chevrolet Silverado 1500 For Sale
305 Great Deals out of 127,775 listings starting at $20,589
2016 Chevrolet Silverado 1500 For Sale
130 Great Deals out of 5,698 listings starting at $18,995
2015 Chevrolet Silverado 1500 For Sale
223 Great Deals out of 8,388 listings starting at $12,950
2014 Chevrolet Silverado 1500 For Sale
260 Great Deals out of 10,267 listings starting at $9,798
2013 Chevrolet Silverado 1500 For Sale
168 Great Deals out of 4,995 listings starting at $7,988

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.