Coolant leaks from thermostat housing Is there another gasket besides I

Asked by Kevin Jul 15, 2020 at 02:13 PM about the 2017 Toyota Corolla LE

Question type: Maintenance & Repair

Coolant leak at thermostat housing(Plastic)
have new O ring Coolant just keeps seeping
thru.Is there another gasket I need? Help

1 Answer


Just the O ring. Make sure the groove where O ring sits, is clean, smooth and torqued to spec. If everything looks good and still leaks, use blue silicone over the O ring and let it sit for a about 4 hrs before adding coolant or running the engine.

Your Answer:

Own this car?

Share your experience with others.

2017 Toyota Corolla

Review another car

CarGurus Experts

  • #1
    Jeff Polhemus
  • #2
    G A Arne
  • #3
View All

Know more, shop wisely


Related Models For Sale

Used Toyota Camry
2,107 Great Deals out of 38,502 listings starting at $1,499
Used Honda Civic
1,409 Great Deals out of 29,779 listings starting at $799
Used Honda Accord
1,591 Great Deals out of 30,534 listings starting at $1,200
Used Toyota RAV4
1,984 Great Deals out of 34,705 listings starting at $1,900
Used Toyota Prius
586 Great Deals out of 7,889 listings starting at $2,100
Used Honda CR-V
2,121 Great Deals out of 37,020 listings starting at $1,999
Used Hyundai Elantra
994 Great Deals out of 19,217 listings starting at $800
Used Toyota Tacoma
1,925 Great Deals out of 36,366 listings starting at $4,975
Used Mazda MAZDA3
509 Great Deals out of 12,594 listings starting at $1,950
Used Nissan Sentra
829 Great Deals out of 22,937 listings starting at $1,500
Used Toyota 4Runner
1,424 Great Deals out of 25,153 listings starting at $2,500
Used Toyota Highlander
1,455 Great Deals out of 20,946 listings starting at $1,000

Used Cars for Sale

2024 Toyota Corolla For Sale
9 Great Deals out of 6,429 listings starting at $21,011
2023 Toyota Corolla For Sale
97 Great Deals out of 1,490 listings starting at $16,925
2022 Toyota Corolla For Sale
282 Great Deals out of 3,381 listings starting at $14,495
2021 Toyota Corolla For Sale
343 Great Deals out of 4,564 listings starting at $10,995
2020 Toyota Corolla For Sale
221 Great Deals out of 2,403 listings starting at $9,995

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. Content will be removed if CarGurus becomes aware that it violates our policies.