Common A/C problem in Toyota Yaris

Friendly format provided to inquire about automotive a/c systems.
Archived Forum

Moderators: bohica2xo, Tim, JohnHere, Dougflas, HECAT

User avatar
bohica2xo
Posts: 839
Read the full article
Joined: Wed May 11, 2016 4:12 pm
Location: Las Vegas, NV

Re: Common A/C problem in Toyota Yaris

Post by bohica2xo »

The reason they used that compressor on that tiny econobox was NVH. Every time the clutch activates it makes the car shudder from the horsepower it requires. Since people have become so mechanically crippled, they think something is wrong with the car.
Al9
Posts: 245
Joined: Tue Mar 10, 2020 3:26 am
Location: Southern Europe

Re: Common A/C problem in Toyota Yaris

Post by Al9 »

Definitely true Bohica. My little 1.2 straight 4 clearly shudders whenever the AC clutch engages. Especially with the full charge inside. Even though the swashplate begins rotation at nearly right angle. Noticed that while someone else was driving and i turned AC on from the passenger seat. Also, you stop noticing the compressor drag only once it enters low displacement. Vane would have been much better for such a small car in my opinion.

The Toyota iQ however went back to the clutch design. It has a refrigerant flow sensor on a port, likely used to control displacement so to prevent excessive load upon that little 1.0/1.3.
User avatar
bohica2xo
Posts: 839
Joined: Wed May 11, 2016 4:12 pm
Location: Las Vegas, NV

Re: Common A/C problem in Toyota Yaris

Post by bohica2xo »

Yeah, 5.6 liters of displacement solves that problem quite nicely. Especially in a 2800 pound car.
Post Reply