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 Oct 20, 2012 at 09:55 AM about the 1992 Lexus SC 400 Base

Question type: Maintenance & Repair

1 Answer

225

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.

3 of 3 people found this helpful.

Your Answer

Add photo

Related Questions

Search Lexus SC 400 Questions

Lexus SC 400 Experts

#1 Tom Demyan
Tom Demyan
Reputation 70
#1 Mick Ireland
Mick Ireland
Reputation 70
#3 Russell Murray
Russell Murray
Reputation 60
View All

Related Models For Sale

Used Lexus SC 300
35 listings
Used Lexus LS 400
210 listings
Used Ford Mustang
706 Great Deals out of 44,429 listings starting at $1,500
Used Chevrolet Corvette
222 Great Deals out of 22,145 listings starting at $3,750
Used Lexus ES 300
20 Great Deals out of 928 listings starting at $1,495
Used Lexus GS 300
25 Great Deals out of 721 listings starting at $1,999
Used Chevrolet Camaro
354 Great Deals out of 31,258 listings starting at $2,500
Used Toyota Supra
54 listings

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.