I have a 2005 Honda CR-V(automatic) with 185,000 miles on it. It has a good maintenance record, but ever since I bought it (5k miles ago), it has a noise I can best describe as a loud resonance that happens when my car is at 1900 rpm.
Through research I believe the technical way to describe this situation is “light throttle, under load”. This noise only occurs at 1900 rpm, while driving, and is not influenced heavily by speed, however today I did notice it seemed a bit more prominent at around 40 mph. I can feather the throttle and keep it around 1900, which will cause the noise to get louder, eventually leveling off, but not really going away. The noise gets pretty loud and is a deep resonating hum. I did record it with a microphone, but the quality is still questionable, I can link to that if needed!
I need advice on how to go about diagnosing this issue. Is there a list of tests I can perform to help narrow it down?
I’m happy to provide additional information/audio if that would help!
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