a "knocking" noise could be your lifters. and the ticking when accelerating and letting out of the gas is the same thing. check your oil and if it's full then you may need to think about either having them adjusted, or getting new ones. depending on what you have depends on whether or not you wanna sell it
Exhaust manifold gasket leaking
Take it to a mechanic
probably broken bearings
can you elaborate? engine noise? stationary/moving? ticking, tapping or a definite knocking?
PULL YOU DIP STICK IS THERE ANY OIL SHOWING ? IF ITS TICKING AND KNOCKING YOU MAY HAVE BLOWN THE MOTOR .. GOOD LUCK
Usually a "knocking" or "ticking" noise when under acceleration means cheap fuel grade. Next time go for the gas with more octane such as supreme.
Knocking as opposed to pinging or ticking, usually means seriously worn bearings of some sort. Time for an overhaul.
whenever you can hear the motor ticking or clicking
Most likely it's a CV joint.
A ticking or clicking sound is probably lifter noise, the valves need adjusting
There is probably too much clearance between the rods and the crankshaft causing the motor to knock. If this is the case you need an overhaul job on the engine. The clicking sound is probably cause from using too low octane gas or your firing is set a little too high. http://www.autozone.com/servlet/UiBroker?UseCase=S001&UserAction=viewSimpleDiagInfo&Parameters=info answer knocking sound comes from worn bearings and parts in lower engine ticking comes from tappets, or more specifically the hydraulic lifters in engine ticking sound can also be a small exhaust manifold leak
that knocking sound could be the connecting rod knocking because of the bearing being warn out do to low oil pressure or no oil all together. also it could just be the valves. some people hear the valves ticking and think its knocking. i have had many friends think that. valves ticking is a simple fix. just look up how the valves are suppose to be adjusted then take off the valve covers and with a feeler gauge measure how big the gap is.