Loud Engine Noise/Knock Revving Up 1k-2k

[JohnEdward]

2013 Nissan Rogue SV with 115,000 miles. I'm getting a loud knock/rattle noise while accelerating in drive between 1,000 to 2,000 RPM. The engine runs great otherwise and the noise goes away when I get over 2k. I changed the oil using an OEM filter (Castrol 5-30 high mileage), installed new OEM spark plugs, and cleaned the throttle body, mass airflow sensor, and camshaft position sensor. I also tried Costco Premium (91 octane). The heat shield is secure. I scanned using an ANCEL AD410, and there are no codes.

I'm in California, so there are no extreme weather issues.

Thank you in advance for taking a look!

https://youtube.com/shorts/hKo9KwerriA?feature=share

[VStar650CL]

Take the belt off it temporarily and see if the noise stops. Sounds like something rubbing when the motor torques or a really bad bearing that's making noise under load.

[oldnissanguy]

I thought a rod was coming loose in mine but the alternator pully had become loose on the shaft and was banging back and forth. It made quite a racket. Taking the belt off helped locate the issue.

[mr24v]

I heard a similar noise on my sister's 11 Rogue (only under load). Turned out to be the OAP on the alternator (no longer free spins in one direction). Purchased a replacement pulley on Ebay for $20 and now the noise is gone.

As everyone mentioned above I'd remove the belt and check for proper operation of the pulley. If you do end up ordering one be sure to get the correct one (looks like you have a VALEO alternator).