After Driving for 7 hours, the car starts pumping COLD air into the cabin with the heat on.

Asked by Jan 02, 2017 at 12:50 PM about the 2003 Lexus ES 300 FWD

Question type: Maintenance & Repair

I was driving from NY to MD, about 7 hours total, and at the beginning of my
trip the car heat was working. It normally gets too hot, so i turn it off
occasionally. Toward the end of my drive, I turned the heat on and it was
blowing COLD air at me. I tried letting it run for a while and changing the
settings but all of the air was cold, after a long drive. The engine was clearly
warmed up. Help!

4 Answers

261,205

Coolant level might be low. Is there coolant in the reservoir by looking at it? Don't remove the cap till the engine has cooled down.

Thank you for replying! I did go and check the coolant- its totally empty. I called my mechanic and he suggested I probably have a leak. Any idea what these things take to repair?

82,825

Check the radiator hoses and the radiator for leaks, maybe they need replacing but if the leak is really small I would try Alumaseal and see it that stops the leak.

82,825

Be sure and replace the coolant with 50/50 water and anti-freeze or even a higher ratio of anti-freeze since you live in a cold winter area. The bottle will tell you the proper ratio for your low temperatures.

Your Answer

ES 300

Looking for a Used ES 300 in your area?

CarGurus has 8 nationwide ES 300 listings starting at $3,500.

Postal Code:

Lexus ES 300 Experts

  • #1
    Tom Demyan
    Reputation
    1,380
  • #2
    rockajean
    Reputation
    480
  • #3
    Scott Vetter
    Reputation
    420
View All

Related Models For Sale

Used Lexus ES 330
10 listings starting at $3,995
Used Lexus GS 300
10 listings starting at $6,495
Used Toyota Camry
107 Great Deals out of 2,311 listings starting at $2,495
Used Honda Accord
86 Great Deals out of 1,037 listings starting at $795
Used Lexus IS 300
7 Great Deals out of 63 listings starting at $5,480
Used Toyota Avalon
5 Great Deals out of 137 listings starting at $6,495
Used Toyota Corolla
294 Great Deals out of 4,067 listings starting at $1,400
Used Honda Civic
319 Great Deals out of 3,578 listings starting at $1,795
Used Acura TL
16 Great Deals out of 245 listings starting at $2,495
Used Lexus RX 300
12 listings starting at $2,800

Used Cars For Sale

2003 Lexus ES 300 FWD For Sale
3 listings starting at $3,500
2002 Lexus ES 300 FWD For Sale
1 listings starting at $5,995

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.