There is a load rattling noise in my 2002 Nissan Altima 2.5s. When I accelerate the car makes a LOUD rattling noise from underneath the hood. It also happens when I am stopped in drive with my foot on the brake. Every so often it will just make a rattling noise for like 3 seconds, then stop. Also happens when I am in park and I accelerate. Any ideas what this could be???
Sounds like you may have a loose exhaust system. Check for loose or broken pipe hangers and brackets.
The exhaust pipes are rattling against the frame, and it’s most noticeable when you’re stopped at a stop light.