air escaping sound with driver side window down for first mile or two of driving

Asked by Apr 13, 2014 at 07:27 PM about the 2000 GMC Sierra 1500 SL 4WD Standard Cab LB

Question type: Maintenance & Repair

The sound is similar to air escaping from a tire valve and lasts for several seconds.  The tire air valves are OK.  It does no occur at idle, only when the truck is driven.  The sound happens several times during the first mile or two of driving.  Any ideas?

1 Answer

250,875

Oonce you start the car, open the hood and see if you can hear the noise. Might be a vacuum leak.

1 of 1 people found this helpful.

Your Answer

GMC Sierra 1500 Experts

  • #1
    dragonflyoffshore
    Reputation
    5,300
  • #2
    John Saffrahn
    Reputation
    3,660
  • #3
    Glenn Clingenpeel
    Reputation
    3,350
View All

Related Models For Sale

Used Chevrolet Silverado 1500
2,154 Great Deals out of 183,297 listings starting at $1,693
Used Ford F-150
2,231 Great Deals out of 181,369 listings starting at $1,500
Used GMC Sierra 2500HD
107 Great Deals out of 13,211 listings starting at $3,900
Used Toyota Tundra
439 Great Deals out of 33,696 listings starting at $1,999
Used Dodge Ram 1500
411 Great Deals out of 10,701 listings starting at $1,500
Used Toyota Tacoma
547 Great Deals out of 42,057 listings starting at $2,999
Used Chevrolet Silverado 2500HD
348 Great Deals out of 29,278 listings starting at $2,650
Used GMC Yukon
409 Great Deals out of 20,824 listings starting at $1,495
Used Chevrolet Tahoe
623 Great Deals out of 36,241 listings starting at $1,800
Used Ford F-250 Super Duty
331 Great Deals out of 43,471 listings starting at $1,250
Used Chevrolet Camaro
418 Great Deals out of 31,785 listings starting at $2,395

Used Cars For Sale

2017 GMC Sierra 1500 For Sale
79 Great Deals out of 39,539 listings starting at $23,369
2016 GMC Sierra 1500 For Sale
93 Great Deals out of 3,435 listings starting at $17,977
2015 GMC Sierra 1500 For Sale
113 Great Deals out of 4,464 listings starting at $15,922
2014 GMC Sierra 1500 For Sale
120 Great Deals out of 4,700 listings starting at $12,987
2013 GMC Sierra 1500 For Sale
45 Great Deals out of 1,959 listings starting at $8,999

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.