I have a knocking sound on my truck it has plenty of oil in it and the sound gets louder at 2000 rpm what can it be
Dec 13, 2012 at 6:05 PM
Advertisement
JACOBANDNICKOLAS
✓Experienced Mechanic
110,248 POSTS
It could be a few things. First, it could be rod or main bearing. It could also be a lifter. You should check the oil pressure to see if it is within spec and not too low.