Hi guys, my car has started rattling when I accelerate. This only happens in 1st, 2nd and 3rd. The noise stops as soon as I change to 4th gear. Any idea what it could be? I've been told it's possibly the laygear, but I don't really know anything about gearboxes.
Attached is a recording of the sound its making. I was in 3rd gear going up a hill then change to 4th at the end and the noise goes away.
Thanks in advance!