Noticed this on my 2004 Wrangler rocky mtn. edition this weekend. Everything is bone stock as far as I know. 30x9.5 yokohama AT wheels on the factory-equipped Alcoa wheels. Automatic, 4.0 motor, has the optional rear-end (Dana 44)
Anyways, I was heading up to a wedding this weekend when I noticed at around 40-50mph, under acceleration there's a noticeably-loud, deep-sounding pulsation. It sounded like it was coming from the middle or maybe SLIGHTLY towards the rear of the car, it was more all-around the interior cabin (has a hardtop). Both me and my buddy thought I had a techno CD in the radio or something, it was a very deep-bass and there was a steady rhythm to these pulses.
I think it might be exhaust-related, as the harder I laid into the gas, the louder it got, and if I let off completely, it went away completely. I understand it could be just some Jeep-noise, since I am brand new to Wranglers. Don't think it's tires, since like I said, it's only when under load. at certain speed ranges (35/40+)
I know I had a camaro z28 previously that had notorious rear-end whining/noises, which was common to all LS1 camaros. Is this pulsating sound a similar "thing" for Jeeps? Anybody else experience this?
I can always take it back to Carmax for any issues in the first 30 days, but anyone have any similar sounds, is it common to all TJ's?
Thanks! Just wondering out loud here.