AC WARM ON PASSENGER SIDE?

Tiny
DIVIDES
  • MEMBER
  • 2014 LEXUS IS 250
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 187,000 MILES
I checked with the gauge and it showed full. Added some and then both sides started to go warm, released the extra and the driver went backto cold. Where is the actuator door blend on the passenger side. Some say its either the actuator door or the servo, where is the servo as well and what does it do?
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Thursday, November 20th, 2025 AT 3:10 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
Yep, you had the system over filled, the problem is the passenger side blend door actuator, I would swap it out for e new unit, here is the location which is under the passenger side dash, you might need to remove the glove box and lower dash panel to get to it. The blend door actuators do not require manual calibration as long as you install OEM-style actuators and reconnect the battery properly. Check out the images (below). Let us know if you need anything else.
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Saturday, November 22nd, 2025 AT 10:20 AM
Tiny
BHAMDOC1973
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What is difference between them and servo motors?
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Saturday, November 22nd, 2025 AT 11:19 AM
Tiny
KEN L
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Nothing, a blend door actuator and a servo motor are the same thing.
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Sunday, November 23rd, 2025 AT 10:03 AM

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