A worn connecting rod bearing will produce a metallic, cyclic
knocking noise from the engine and possible engine failure.
Not exact matches
The service bulletin T - SB -0087-09 for the 2009 Corolla / Matrix describes a problem where a brief
knocking / rattling
noise from the 2ZR
engine when started cold is caused by a faulty camshaft timing gear assembly (VVT gear).
What I like best about the IS 350 F - Sport is that, while it doesn't isolate the driver
from engine noise and bumps in the road, it does a great job of toning down the drone of wheel and road
noise and the worst jars and
knocks of potholes and cracked pavement.