Fast clicking sound only when AC compressor comes on. 2025 4Runner SR5.

[goldberg_21]

Hello, has any one come across a loud fast repetitive clicking sound when AC compressor comes on.

The dealership says it’s Direct Injection sound, but I am like why only when AC comes on.

it stop and goes as the compressor engages and disengages and more prominent when in drive or reverse gear.

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[4cyl_runner]

Yes I noticed that on my brand new 2026 today. It sounds similar to my Tacoma.

 

[Vincenzo]

Uhhhhhhhhhhhhh, it’s the compressor cycling. Turning on and off

 

[4cyl_runner]

Here's mine, click the time stamps to jump to the different sounds.

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