What causes a knocking sound on left side of car when accelerating and slowing? on 2001 Volvo S60

the engine runs smooth but there is a knocking coming from the left side of the car when I accelerate or slow down.

by in Tacoma, WA on August 05, 2013
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer
ANSWER by , August 05, 2013
maybe a bad lifter or foul plug