Nissan Forum banner
1 - 2 of 2 Posts

·
Registered
Joined
·
624 Posts
Bad rod bearing, piston slap, lifter tick, loose torque converter, etc.

Knocking is generally not a good thing. Does the noise increase or decrease with rpm, temperature, load, etc?
 

·
Registered
Joined
·
624 Posts
If its coming from the valve cover, I'd suspect a lifter issue. Does it come from that lump on the end of the cover that houses the VVT mechanism? Does it lessen when you change your oil?
 
1 - 2 of 2 Posts
Top