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

22,580

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 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 4 Door LT

    -

    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

  • why my air conditioner not blowing??

    Why my button for my air conditioner stuck on defrost?? & What can I do to fix it, because my air is coming from the top...

    2002 Chevrolet Blazer

    -

    Maintenance & Repair

  • Why won't my blazer start?

    My boyfriend put in a new stereo and cut a bunch of wires and when he put it all back together it won't start now

    2002 Chevrolet Blazer 4 Door LS

    -

    Maintenance & Repair

  • why is my 1999 chevy s10 blazer overheating 2 answers

    just put new thermostat...replaced hoses....flushed radiator and it is still running hot....when i turn my ac off temp goes down a little. I am not loosing water.

    1999 Chevrolet Blazer 4 Door LS

    -

    Maintenance & Repair

Search Chevrolet Blazer Questions

Chevrolet Blazer Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 1,990
#2 yetilikesbeer
yetilikesbeer
Reputation 1,300
#3 Rowefast
Rowefast
Reputation 1,030
View All

Related Models For Sale

Used Chevrolet Tahoe
559 Great Deals out of 31,371 listings starting at $1,500
Used Chevrolet S-10
5 Great Deals out of 1,310 listings starting at $2,695
Used GMC Jimmy
274 listings starting at $2,495
Used Ford Bronco
203 listings
Used Ford Explorer
928 Great Deals out of 70,253 listings starting at $997
Used Chevrolet Camaro
244 Great Deals out of 31,194 listings starting at $369
Used Ford F-150
2,058 Great Deals out of 207,340 listings starting at $1,499
Used Jeep Grand Cherokee
1,027 Great Deals out of 72,252 listings starting at $700
Used Chevrolet Suburban
300 Great Deals out of 19,514 listings starting at $1,800
Used Ford Mustang
543 Great Deals out of 45,845 listings starting at $1,999
Used GMC Yukon
382 Great Deals out of 19,299 listings starting at $2,000
Used Chevrolet Impala
590 Great Deals out of 34,064 listings starting at $899

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.