Heat not working in my car

Asked by Guru9Y73VM Feb 14, 2021 at 07:04 PM about the 2003 Hyundai Elantra

Question type: Maintenance & Repair

The heat in my car stopped getting really
warm, so someone suggested we put a 195
thermostat in it. After we removed the 185
thermostat we learned they do not make a
195 thermostat for our car. We bought a new
185 and installed it. Now we have no warm
heat at all, only cold air. Someone said it could
have air in the line. Would anyone know what
else could be wrong?

2 Answers

F_O_R answered 4 years ago

You need a 195 degree thermostat or warmer in order for the engine to run properly. With a 185 t stat your fuel economy will be poor. Air in the system is a possibility, burp it.

1 people found this helpful.
Mark helpful
158,465

James answered 4 years ago

According to what I'm seeing a 180°F thermostat is correct for your vehicle. I'm thinking you have either air in the cooling system or a clogged heater core. If the heater core is clogged you'll want to flush the cooling system with a chemical cleaner. Hope that helps! Jim

Mark helpful

Your Answer:

Related Questions

  • Heat not working in my car 2 Answers

    The heat in my car stopped getting really warm, so someone suggested we put a 195 thermostat in it. After we removed the 185 thermostat we learned they do not make a 195 thermostat for our car. We...

    2003 Hyundai Elantra

    -

    Maintenance & Repair

  • Why is my Car accelerator not working? 3 Answers

    I have a 2017 Hyundai Elantra. I've been driving it for 8 months and have a little over 4000 miles on it. about 2-3 weeks ago when I'm driving the accelerator will stop working. My foot will be all ...

    2017 Hyundai Elantra

    -

    Maintenance & Repair

  • My sensors are not working 8 Answers

    My car sensors does not want to spark with the spark plug.

    2002 Hyundai Elantra GLS Sedan FWD

    -

    Maintenance & Repair

  • Why can I not change where my heat comes from? 2 Answers

    I drive an 03 Hyundai Elantra GLS and whenever I try to get heat to my windshield (defrost) nothing comes out. Furthermore, when I try to change to any other mode, nothing happens. I get air out of ...

    2003 Hyundai Elantra GLS Sedan FWD

    -

    Maintenance & Repair

  • My stereo navigation and controls on wheering wheel not working 2 Answers

    I have a Hyundai Elantra my controls on the steering wheel and lighter and stereo/ Navigation system not working I already changed the fuse checked the fuse on the back of the system and it still do...

    2010 Hyundai Elantra Blue FWD

    -

    Maintenance & Repair

Own this car?

Share your experience with others.

2003 Hyundai Elantra

Write a car review

Review another car

Shortcuts

Search Hyundai Elantra Questions

CarGurus Experts

  • #1
    G. Jacob Durbin
    Reputation
    3,630
  • #2
    Taku Zhou
    Reputation
    3,120
  • #3
    Pirdman
    Reputation
    2,920
View All

Know more, shop wisely

Search

Related Models For Sale

Used Hyundai Sonata
697 Great Deals out of 15,239 listings starting at $1,200
Used Honda Civic
1,187 Great Deals out of 27,118 listings starting at $1,995
Used Toyota Corolla
1,702 Great Deals out of 27,900 listings starting at $1,500
Used Toyota Camry
2,404 Great Deals out of 43,916 listings starting at $975
Used Honda Accord
1,305 Great Deals out of 23,289 listings starting at $998
Used Nissan Altima
1,324 Great Deals out of 33,317 listings starting at $1,490
Used Mazda MAZDA3
443 Great Deals out of 11,885 listings starting at $999
Used Nissan Sentra
715 Great Deals out of 33,877 listings starting at $1,803
Used Volkswagen Jetta
611 Great Deals out of 12,474 listings starting at $999

Used Cars for Sale

2025 Hyundai Elantra For Sale
19 Great Deals out of 20,175 listings starting at $17,803
2024 Hyundai Elantra For Sale
111 Great Deals out of 2,718 listings starting at $15,299
2023 Hyundai Elantra For Sale
88 Great Deals out of 1,320 listings starting at $12,998
2022 Hyundai Elantra For Sale
75 Great Deals out of 1,216 listings starting at $11,745
2021 Hyundai Elantra For Sale
60 Great Deals out of 921 listings starting at $9,990

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.