I have an 04 Acura RSX that begins to loudly vibrate under acceleration. I’ve read through many posts detailing a similar issue but they all mention the issue happening at high speeds. My issue only happens from a stop, low speeds, or uphill. If I very gently press the pedal in there is no vibrating/noise what-so-ever. It doesn’t do it in park or neutral or while I’m off the pedal. If I’m coasting at any speed there is no issue. It seems like the issue only comes when a large load is applied.
I’ve looked into these possible causes:
Engine Mounts - Didn’t think this would be the issue since it doesn’t vibrate in neutral?
Spark Plugs - Haven’t checked them yet, but same reasoning as above ^
CV Joints - Checked the boots and they’re undamaged. Suppose they could still be the issue but I didn’t think so since the rubber isn’t damaged and there’s no leaking grease.
Transmission - I originally thought my gears were grinding but I would guess that’s not the issue since the car drives fine under every condition except the ones mentioned.
Driveshaft/U-Joints - It’s FWD so that’s a no.
Wheels/Balancing - No problems at highway speed, so probably not.
All clues point me towards the CV Joints but I wanted to get some opinions before I go rip them out to check. I’m just unsure because like I mentioned the boots are in good condition. I would love to hear what you guys think, anything would be appreciated.