No heat

Asked by Jan 23, 2016 at 08:10 AM about the 1999 GMC Sierra 1500 SLT 4WD Extended Cab SB

Question type: Maintenance & Repair

Hvac works, but no heat is generated. Any thoughts?

2 Answers

21,120

Low on anti freeze, thermostat needs to be replaced, radiator fan not working, blend door is not switching over from A.C to heat, this is just a few things but a little bit more information on what is going on would be helpful to diagnosis better.

20

Also in front of the engine where the grille is you may have a bad inter cooler. Best thing would be to put a piece of cardboard behind the the grille so the the engine doesn't blow cold air into your cat

Your Answer

GMC Sierra 1500 Experts

  • #1
    dragonflyoffshore
    Reputation
    5,520
  • #2
    John Saffrahn
    Reputation
    3,820
  • #3
    Glenn Clingenpeel
    Reputation
    3,570
View All

Related Models For Sale

Used Chevrolet Silverado 1500
2,725 Great Deals out of 156,639 listings starting at $1,000
Used Ford F-150
3,016 Great Deals out of 229,518 listings starting at $1,300
Used Toyota Tundra
625 Great Deals out of 36,104 listings starting at $1,500
Used Toyota Tacoma
540 Great Deals out of 41,033 listings starting at $2,500
Used Dodge Ram 1500
324 Great Deals out of 10,664 listings starting at $1,988
Used Ford F-250 Super Duty
443 Great Deals out of 47,411 listings starting at $695
Used Chevrolet Tahoe
818 Great Deals out of 39,846 listings starting at $1,900
Used GMC Yukon
496 Great Deals out of 19,331 listings starting at $1,995
Used Chevrolet Camaro
385 Great Deals out of 31,363 listings starting at $3,495
Used Ford Mustang
337 Great Deals out of 42,077 listings starting at $1,488
Used Jeep Grand Cherokee
889 Great Deals out of 71,123 listings starting at $900

Used Cars For Sale

2018 GMC Sierra 1500 For Sale
8 Great Deals out of 29,694 listings starting at $22,639
2017 GMC Sierra 1500 For Sale
85 Great Deals out of 5,707 listings starting at $21,471
2016 GMC Sierra 1500 For Sale
114 Great Deals out of 3,487 listings starting at $14,500
2015 GMC Sierra 1500 For Sale
179 Great Deals out of 5,677 listings starting at $13,500
2014 GMC Sierra 1500 For Sale
189 Great Deals out of 4,310 listings starting at $11,495

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.