When im approaching a stop and i start pressing the btake the rpm moves up. Whats happening?

Asked by Jun 22, 2016 at 12:00 AM about the 2014 GMC Sierra 1500 SLE Crew Cab

Question type: Maintenance & Repair

2 Answers

25,535

check for a vacuum leak...

95,105

Sounds like you have a brake booster starting to fail, try this start the engine and let it idle for a bit then shut it off, when is quiet slowly step, but n the brake pedal and listen for a hissing sound, if you hear one then the booster is leaking and will need replaced. HTH

Your Answer

Add photo

Related Questions

Search GMC Sierra 1500 Questions

GMC Sierra 1500 Experts

#1 dragonflyoffshore
dragonflyoffshore
Reputation 5,100
#2 John Saffrahn
John Saffrahn
Reputation 3,560
#3 Glenn Clingenpeel
Glenn Clingenpeel
Reputation 3,230
View All

Related Models For Sale

Used Chevrolet Silverado 1500
1,777 Great Deals out of 181,195 listings starting at $250
Used Ford F-150
2,064 Great Deals out of 207,332 listings starting at $1,499
Used GMC Sierra 2500HD
99 Great Deals out of 13,462 listings starting at $2,650
Used Toyota Tundra
437 Great Deals out of 34,674 listings starting at $2,990
Used Ram 1500
906 Great Deals out of 112,637 listings starting at $6,386
Used Toyota Tacoma
473 Great Deals out of 41,586 listings starting at $1,995
Used Chevrolet Silverado 2500HD
301 Great Deals out of 28,182 listings starting at $2,495
Used GMC Yukon
382 Great Deals out of 19,295 listings starting at $2,000
Used Chevrolet Tahoe
558 Great Deals out of 31,371 listings starting at $1,500
Used Ford F-250 Super Duty
330 Great Deals out of 46,260 listings starting at $1,450
Used Chevrolet Camaro
242 Great Deals out of 31,193 listings starting at $369
Used GMC Canyon
81 Great Deals out of 10,543 listings starting at $2,495
Used Chevrolet Colorado
243 Great Deals out of 24,815 listings starting at $2,499

Used Cars For Sale

2017 GMC Sierra 1500 SLE Crew Cab For Sale
1,859 listings starting at $32,835
2016 GMC Sierra 1500 SLE Crew Cab For Sale
154 listings starting at $31,990
2015 GMC Sierra 1500 SLE Crew Cab For Sale
6 Great Deals out of 171 listings starting at $23,995
2014 GMC Sierra 1500 SLE Crew Cab For Sale
10 Great Deals out of 323 listings starting at $22,681
2013 GMC Sierra 1500 SLE Crew Cab For Sale
6 Great Deals out of 217 listings starting at $15,999

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.