No heat

Asked by Fireman1224 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

64,350

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.

230

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:

CarGurus Experts

  • #1
    yetilikesbeer
    Reputation
    12,280
  • #2
    dragonflyoffshore
    Reputation
    11,440
  • #3
    John Saffrahn
    Reputation
    11,410
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Silverado 1500
222 Great Deals out of 9,112 listings starting at $2,900
Used Ford F-150
363 Great Deals out of 12,802 listings starting at $599
Used Toyota Tundra
27 Great Deals out of 993 listings starting at $9,240
Used Chevrolet Silverado 2500HD
39 Great Deals out of 1,814 listings starting at $1,000
Used Toyota Tacoma
43 Great Deals out of 684 listings starting at $9,975
Used GMC Yukon
17 Great Deals out of 941 listings starting at $5,998
Used Dodge RAM 1500
85 listings starting at $2,500
Used Chevrolet Tahoe
18 Great Deals out of 859 listings starting at $9,980
Used Ford F-250 Super Duty
31 Great Deals out of 720 listings starting at $4,290

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. Content will be removed if CarGurus becomes aware that it violates our policies.