why my heater dosen't work

Asked by jp060161 Jan 20, 2007 at 05:00 PM about the 1997 Chevrolet Blazer LT 4-Door RWD

Question type: Maintenance & Repair

heater works when first cranked and sitting still then when you drive it becomes cold what is the problem

1 Answer

LouB answered 17 years ago

Hey JP ... Have you noticed how the temperature of the engine relates? Given the information you've given us here the first place I would look is the thermostat. After that you need to check the hoses leading to the heater core and the core itself. The fact it works at times still leads me to the thermostat however. I would also take a ride the library and see if they have the Chilton's for your model year. There will be a heating troubleshooting guide in it that will guide you towards the problem. Good luck!

Mark helpful

Your Answer:

Related Questions

  • why my heater dosen't work 1 Answer

    heater works when first cranked and sitting still then when you drive it becomes cold what is the problem

    1997 Chevrolet Blazer LT 4-Door RWD

    -

    Maintenance & Repair

  • why doesnt my heater or ac work 1 Answer

    replaced the blower motor and resistor and still doesnt work

    1999 Chevrolet Blazer

    -

    Maintenance & Repair

  • THe Switcher for the heater/AC wont work? 4 Answers

    The switcher thingy (don't know what its called, modulator or something like that) wont work. When we switch from front cabin panel vent heat to windshield heat it doesn't change and still blows from ...

    2000 Chevrolet Blazer Trailblazer 4-Door 4WD

    -

    Maintenance & Repair

  • heater 1 Answer

    my heat is stuck and it will not coll down.i turned my tenp. down and still blows hot air.is my thermo. stuck?

    2000 Chevrolet Blazer Trailblazer 4-Door 4WD

    -

    Maintenance & Repair

  • Heater 1 Answer

    What could cause my heat to blow out cold air

    2003 Chevrolet Blazer LS 4-Door 4WD

    -

    Maintenance & Repair

Shortcuts

Search Chevrolet Blazer Questions

CarGurus Experts

  • #1
    Andrew Olsen
    Reputation
    4,240
  • #2
    Rowefast
    Reputation
    3,540
  • #3
    yetilikesbeer
    Reputation
    2,410
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Tahoe
12 Great Deals out of 806 listings starting at $9,980
Used Jeep Grand Cherokee
140 Great Deals out of 3,673 listings starting at $5,555
Used Ford Explorer
51 Great Deals out of 2,017 listings starting at $6,990
Used Toyota RAV4
140 Great Deals out of 3,035 listings starting at $3,900
Used Jeep Wrangler
133 Great Deals out of 5,957 listings starting at $8,990
Used Toyota 4Runner
27 Great Deals out of 553 listings starting at $7,700
Used Honda CR-V
192 Great Deals out of 4,984 listings starting at $440

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.