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2025 Hyundai Tucson — buzzing noise only at one engine RPM

TruckDadCommunity StarterOct 13, 20252025 Hyundai Tucson Hybrid LimitedBay Area
2025 Hyundai Tucson Hybrid Limited, about 22,000 miles. There is a light buzz from the dash at one narrow RPM range. It disappears above and below that speed. Any good method for locating trim resonance without randomly adding foam everywhere?
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2 replies

TireGarageCommunity StarterCommunity StarterOct 13, 2025permalink
I wouldn't throw parts yet. If a shop can't duplicate it on the 2025 Hyundai Tucson, bring a video plus freeze-frame data, not just a story. If the cheap test changes it, stop and reassess. Learned this the expensive way on a previous car. I'll poke at it this weekend.
ProjectGarageCommunity StarterCommunity StarterOct 15, 2025permalink
Quick add on that: Move a coil or plug on the 2025 Hyundai Tucson if it's cylinder-specific and see whether the code follows. Don't erase codes until someone who can help has seen them. Verbal 'we'll take care of it' is not a plan. I keep a notes app thread for this now.
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