my 92 lexus sc400 is starts to become real hot inside.... why? heater is off, and it seems to still have some heat coming from under the center dash area while AC is on. Weird...

Asked by lexusman_fixn_sc400 Oct 20, 2012 at 09:55 AM about the 1992 Lexus SC 400 RWD

Question type: Maintenance & Repair

1 Answer

305

You may have a failed heater control valve, stuck open. It is on the firewall to the left of the intake manifold, you'll see the hoses going in and out of it. They factory pieces are pricey, about $325! You can get around that by using a Motorcraft YG-368 replacement and installing it with the hose slightly turned.

5 people found this helpful.

Your Answer:

CarGurus Experts

  • #1
    tm2001
    Reputation
    1,560
  • #2
    GuruXSNP
    Reputation
    1,000
  • #3
    GuruLRX4
    Reputation
    680
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Lexus LS
28 listings starting at $9,995
Used Lexus GS
23 listings starting at $6,995
Used Lexus ES
15 Great Deals out of 192 listings starting at $3,888
Used Chevrolet Corvette
28 Great Deals out of 1,058 listings starting at $15,871
Used Mercedes-Benz SL-Class
13 Great Deals out of 124 listings starting at $13,995
Used Porsche 911
11 Great Deals out of 312 listings starting at $21,888
Used Chevrolet Camaro
16 Great Deals out of 307 listings starting at $9,995
Used Ford F-150
321 Great Deals out of 15,103 listings starting at $1,712
Used BMW 3 Series
71 Great Deals out of 1,168 listings starting at $1,795
Used Honda Accord
43 Great Deals out of 907 listings starting at $1,599

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.