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

  • my lexus sc 400 wont start, it wont even crank 2 answers

    i recently drove my car to the store, got back to the car , tried to start it , and i got nothing... no sound no crank ,nothing.....whats weird is my battery is brand new , the dome lights come on hea...

    Lexus SC 400

    -

    Maintenance & Repair

  • Lighted Tach & Speed Needles 2 answers

    Both red lit needles went out on the tach and speedo. Are they lit by bulbs that can be changed out on the back of the instrument cluster?

    1992 Lexus SC 400 Base

    -

    Maintenance & Repair

  • 2008 RX350 Engine problem 33 answers

    My 2008 RX350 stopped while I was driving slowly due to heavy traffic - there wasn't any abnormal sound or shaking before that. I tried to restart, but it couldn't. So I had it towed to a Lexus deal...

    2008 Lexus RX 350 FWD

    -

    Maintenance & Repair

  • 2001 rx300-- the "vsc" light on my dash is on.. 32 answers

    my "vsc" light on my dash is on. what's it mean? what do i do to fix and how much will it cost?

    2001 Lexus RX 300

    -

    Maintenance & Repair

  • My Lexus IS 300 3 answers

    My Lexus is300 seems to be acting up. It has almost 200k miles. Sometimes it seems like the transmission is acting up the other night like seemed like I had to push the gas pedal all the way to ...

    2002 Lexus IS 300 Sedan

    -

    Maintenance & Repair

Search Lexus SC 400 Questions

Lexus SC 400 Experts

#1 Mick Ireland
Mick Ireland
Reputation 60
#1 Russell Murray
Russell Murray
Reputation 60
#3 Tom Demyan
Tom Demyan
Reputation 50
View All

Related Models For Sale

Used Lexus SC 300
37 listings starting at $3,900
Used Lexus LS 400
222 listings
Used Ford Mustang
474 Great Deals out of 45,735 listings starting at $1,999
Used Lexus GS 300
30 Great Deals out of 775 listings starting at $2,495
Used Toyota Supra
43 listings starting at $63,800
Used BMW 3 Series
971 Great Deals out of 31,729 listings starting at $1,000
Used BMW 5 Series
460 Great Deals out of 15,987 listings starting at $1,700
Used Chevrolet Camaro
226 Great Deals out of 30,943 listings starting at $1,217
Used Lexus ES 300
6 Great Deals out of 882 listings starting at $1,800

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.