GMC 95 1500 Sierra brakes. Sound of air is heard when applying brakes?

Asked by Jan 16, 2014 at 09:50 PM about the 1995 GMC Sierra 1500 C1500 SL Standard Cab SB

Question type: Maintenance & Repair

We had this truck for a long time still in good condition. Just recently we bleed the brake
to try to get the air out the lines but still when we apply the brake when the truck is on, it
will make a loud air sound and the brakes will be harder to push but the truck will stop. an
the brake pedal will go down slowly but not all the way. is it the air in the brakes or the
brake booster. That is what someone had mentioned.

3 Answers

108,725

Sounds like a booster issue.

1 out of 1 people think this is helpful.
Best Answer

Thanks a lot. Going to check it out tomorrow.

Take the vacuum hose off - which takes the power booster out of use - the brakes should stay hard and makes it hard to stop the vehicle - which indicates that the booster is bad.

Your Answer

Add photo

Related Questions

  • ABS and Brake light on. What does it mean? 47 answers

    My abs light and my brake light is on, I heard this is a pretty common issue with these trucks. What are some recommendations on a starting point for troubleshooting.

    2001 GMC Sierra 1500 SL Standard Cab LB

    -

    Maintenance & Repair

  • Brakes 1 answer

    Brake calipers get stuck sometimes I have changed the calipers ,pads and rotors still happend

    2006 GMC Sierra 1500

    -

    Maintenance & Repair

  • Apply brakes and lose battery power 1 answer

    While turning such as a corner, applying the brakes the battery power drops to zero and truck dies. Turn everything off and it starts right up. Thus is the GMC Z-71 off the road K1500 series

    1994 GMC Sierra 1500 K1500 SLE 4WD Standard Cab Stepside SB

    -

    Maintenance & Repair

  • Brakes 5 answers

    I got a 94 GMC 1500 4x4 Extended Cab & I put all new brake & brake cylinders & brake line all the way to the master cylinder also I replace the brake line on the front, with new rotors, brake calip...

    1994 GMC Sierra 1500 K1500 SLE 4WD Extended Cab SB

    -

    Maintenance & Repair

  • 1995 GMC SIERRA ANTI-LOCK BRAKE LIGHT STAYS ON ,OWNER SAYS ITS BEEN THIS WAY FOR A LONG TIME 3 answers

    I WANT TO BUY THIS TRUCK BUT WHAT ABOUT THE BRAKES ,HE HAD THE FRONTS DONE OR THE PADS CHANGED BUT NOW THE PEDAL IS SPONGY AND ALSO BRAKE LIGHT PLUS ANTI-LOCK BRAKES LITES ARE BOTH ON NOW,PLEASE HELP....

    1995 GMC Sierra C/K 1500

    -

    Maintenance & Repair

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 66,011 nationwide Sierra 1500 listings starting at $1,995.

ZIP:

Search GMC Sierra 1500 Questions

GMC Sierra 1500 Experts

#1 dragonflyoffshore
dragonflyoffshore
Reputation 4,920
#2 John Saffrahn
John Saffrahn
Reputation 3,490
#3 Glenn Clingenpeel
Glenn Clingenpeel
Reputation 3,070
View All

Related Models For Sale

Used Ford F-150
2,223 Great Deals out of 208,132 listings starting at $1,499
Used Dodge Ram 1500
433 Great Deals out of 11,289 listings starting at $1,000
Used Toyota Tacoma
481 Great Deals out of 38,759 listings starting at $2,900
Used GMC Yukon
355 Great Deals out of 16,913 listings starting at $2,500
Used Chevrolet Tahoe
561 Great Deals out of 27,199 listings starting at $999
Used Chevrolet Camaro
152 Great Deals out of 32,722 listings starting at $1,995
Used GMC Sierra 2500
164 listings starting at $4,995

Used Cars For Sale

2017 GMC Sierra 1500 For Sale
38 Great Deals out of 41,310 listings starting at $20,121
2016 GMC Sierra 1500 For Sale
90 Great Deals out of 3,766 listings starting at $17,695
2015 GMC Sierra 1500 For Sale
100 Great Deals out of 3,875 listings starting at $15,400
2014 GMC Sierra 1500 For Sale
99 Great Deals out of 4,230 listings starting at $14,495
2013 GMC Sierra 1500 For Sale
66 Great Deals out of 2,112 listings starting at $9,260