why my heater dosen't work

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

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

22,270

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!

Your Answer

Add photo

Related Questions

  • why doesnt my heater or ac work 1 answer

    replaced the blower motor and resistor and still doesnt work

    1999 Chevrolet Blazer

    -

    Maintenance & Repair

  • why is the heater is blowing cold air 3 answers

    2000 Chevrolet Blazer 4 Door LS 4WD

    -

    Maintenance & Repair

  • my 2001 chevy Blazer heater will not work, the AC works great but no heat 1 answer

    the AC works great but when i turn the knob to heat it still blows cold air

    2001 Chevrolet Blazer 4 Door LS

    -

    Maintenance & Repair

  • heater 6 answers

    The heat in my blazer only blows cold air unless I'm on the highway then it works fine. Don't want to but my parts until I know what to get. Any of you know what I should do?

    2000 Chevrolet Blazer 4 Door LT 4WD

    -

    Maintenance & Repair

  • heater wont shut off? 2 answers

    The heater overrides the air conditioner and will not shut off.

    1989 Chevrolet Corvette Coupe

    -

    Maintenance & Repair

Search Chevrolet Blazer Questions

Chevrolet Blazer Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 1,970
#2 yetilikesbeer
yetilikesbeer
Reputation 1,270
#3 Rowefast
Rowefast
Reputation 1,010
View All

Related Models For Sale

Used Chevrolet Tahoe
559 Great Deals out of 28,789 listings starting at $1,699
Used Chevrolet S-10
8 Great Deals out of 1,349 listings starting at $1,395
Used GMC Jimmy
258 listings starting at $2,495
Used Ford Bronco
193 listings
Used Ford Explorer
931 Great Deals out of 72,327 listings starting at $1,499
Used Jeep Grand Cherokee
1,024 Great Deals out of 74,106 listings starting at $800
Used Ford F-150
2,211 Great Deals out of 205,382 listings starting at $1,499
Used Chevrolet Camaro
205 Great Deals out of 30,804 listings starting at $1,217
Used Jeep Wrangler
278 Great Deals out of 18,077 listings starting at $2,950
Used Chevrolet C/K 1500
900 listings starting at $2,500
Used Chevrolet Suburban
310 Great Deals out of 19,623 listings starting at $1,350
Used Chevrolet Impala
581 Great Deals out of 31,626 listings starting at $799

Used Cars For Sale

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.