after changing brakes all around and the master cylinder bleed lines several times but the pedal is still soft any suggestions on what could be the problem

Asked by Aug 10, 2015 at 02:05 AM about the 1995 GMC Sierra 1500 K1500 SL 4WD Extended Cab SB

Question type: Maintenance & Repair

4 Answers

57,675

There is air in the system some where, you can't let the master cylinder run dry or you will need to bleed it separately. If you are sure the break lines have no air and the master cylinder did not run dry, it is possible the master cylinder is bad. Did you have this problem before working on the breaks?

42,015

Bleed the lines furthest from the master cylinder first. Example Right Rear, Left Rear, Right Front, Left Front. The master cylinder may need to be bled also.

1 out of 1 people think this is helpful.

The master cylinder was bad so it was also replaced and I bench bled it before putting it back on the truck. There is no air coming out of the lines when bleeding them and the master cylinder hasnt ran dry. Could the brake booster or abs sytem be the problem?

42,015

It is possible the ABS unit has air in it, not sure if you have to go to a dealership to get them to put it on their machine and open up the ports or not. You might check with the dealer or mechanic.

Your Answer

Add photo

Related Questions

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 64,789 nationwide Sierra 1500 listings starting at $1,500.

ZIP:

Search GMC Sierra 1500 Questions

GMC Sierra 1500 Experts

#1 dragonflyoffshore
dragonflyoffshore
Reputation 4,850
#2 John Saffrahn
John Saffrahn
Reputation 3,420
#3 Glenn Clingenpeel
Glenn Clingenpeel
Reputation 3,020
View All

Related Models For Sale

Used Ford F-150
2,425 Great Deals out of 211,459 listings starting at $895
Used Dodge Ram 1500
449 Great Deals out of 11,503 listings starting at $700
Used GMC Yukon
400 Great Deals out of 16,385 listings starting at $1,800
Used Toyota Tacoma
549 Great Deals out of 38,159 listings starting at $2,900
Used Chevrolet Tahoe
631 Great Deals out of 27,863 listings starting at $600
Used Chevrolet Camaro
137 Great Deals out of 35,623 listings starting at $1,995
Used GMC Sierra 2500
4 Great Deals out of 164 listings starting at $2,400

Used Cars For Sale

2017 GMC Sierra 1500 For Sale
33 Great Deals out of 38,994 listings starting at $21,410
2016 GMC Sierra 1500 For Sale
82 Great Deals out of 3,830 listings starting at $18,990
2015 GMC Sierra 1500 For Sale
126 Great Deals out of 4,053 listings starting at $14,999
2014 GMC Sierra 1500 For Sale
133 Great Deals out of 4,461 listings starting at $14,495
2013 GMC Sierra 1500 For Sale
76 Great Deals out of 2,283 listings starting at $8,096