MY HEATER WONT GO FROM HOT TO COLD

Asked by Willy Jun 23, 2017 at 04:46 PM about the 1994 GMC Sierra 1500 C1500 SL Extended Cab SB

Question type: Maintenance & Repair

DUS NOT GO FROM HOT TO COLD ITS ON HOT ALL THE TIME

1 Answer

5,885

Possible blend door issue. Also have a look at your freon pressures high and low sides. Proper pressures will vary with ambient temp outside.

Your Answer:

GMC Sierra 1500 Experts

  • #1
    dragonflyoffshore
    Reputation
    9,180
  • #2
    yetilikesbeer
    Reputation
    8,430
  • #3
    John Saffrahn
    Reputation
    8,330
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford F-150
76 Great Deals out of 6,585 listings starting at $2,995
Used Dodge RAM 1500
4 Great Deals out of 163 listings starting at $3,500
Used Toyota Tacoma
26 Great Deals out of 692 listings starting at $2,995
Used GMC Yukon
8 Great Deals out of 337 listings starting at $5,499
Used Chevrolet Tahoe
6 Great Deals out of 468 listings starting at $508
Used Chevrolet Corvette
9 Great Deals out of 265 listings starting at $9,995

Used Cars for Sale

2020 GMC Sierra 1500 For Sale
3 Great Deals out of 464 listings starting at $30,995
2019 GMC Sierra 1500 For Sale
186 listings starting at $32,233
2018 GMC Sierra 1500 For Sale
10 Great Deals out of 374 listings starting at $24,940
2017 GMC Sierra 1500 For Sale
5 Great Deals out of 333 listings starting at $21,995
2016 GMC Sierra 1500 For Sale
6 Great Deals out of 120 listings starting at $14,495

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