Weird noise when park is parked and ac is on?

2022 TOYOTA TACOMA
51,000 MILES • 4WD • AUTOMATIC
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SLICKRICK07
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Trying to see what this odd noise is when ac is turn on while I’m parked. Felt like the noise started a few days ago. Parked during my lunch break with ac on for about 10-15 mins, then this loud humming noise came on. Maybe someone can identify something or I’m hearing things. Defending sounds odd tho. When driving sound is non existent, can only notice it when parked.

For reference 2022 Tacoma OR 51k miles

Thanks!
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Sep 10, 2026 at 5:46 PM
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STRAILER
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I don't hear anything unusual on the video? Could it be the cooling fan kicking in? Is the noise inside the cabin or outside in the engine compartment?
Sep 12, 2026 at 9:18 AM
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SLICKRICK07
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Thanks for your reply. I know it’s tough to listen but if you try to ignore the normal tick, you can make out the womp womp sound towards the end. Lmk if you can hear it
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Sep 12, 2026 at 3:16 PM
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SLICKRICK07
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Apologies. Wrong video. Here’s another video with same issue
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Sep 12, 2026 at 3:19 PM
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STRAILER
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Hmm,, if you turn the AC off is the noise still there?
Sep 13, 2026 at 10:51 AM
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SLICKRICK07
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No, there is no noise when ac is turned off. Noise only happens when truck is idle and ac is on high after about 15 mins
Sep 13, 2026 at 8:01 PM
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STRAILER
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It is difficult to hear the noise but can I ask if the vehicle was in an accident? If so and they had to replace the condenser they may have install too much compressor oil which will make a grumbling noise at idle while the system is on.
Sep 14, 2026 at 5:22 PM
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SLICKRICK07
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Thanks again for the prompt response. I know it’s difficult to hear thru the videos. The truck has not been in any accidents. AC still works as intended. It only happens after I’m parked and idling for about 20-30 mins with ac on. Thanks again!
Sep 14, 2026 at 7:12 PM
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STRAILER
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You are welcome, Could it be the fan clutch is kicking in when the engine is getting hot?
Sep 15, 2026 at 8:13 AM
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