it could be your valves or your engine
is this a 4x4 solid front axle.your front axle shaft u-joints may be bad.get under the front axle between the wheel and the end of your axle tube grab the u-joint and see if it has play.this is most common knocking on solid axle trucks
Most likely you need a new strut
Serious engine knock or valve train noise. Have this looked into by a pro.
The sway bar end links could be damaged on a vehicle that is making that noise. Also, check the dust shields on the front brake assembly.Ê
If the 1996 Olds Aurora will not start and there is a clicking noise from under the front panel, check the starter. The clicking noise is probably from the starter solenoid.
Loose, worn, broken tie rods, sway bar links, struts, ball joints,.......
possibly hitting the front bumper
Loose Lug nuts bad control arm...
look under your car, drop the oil and go out and drive it for about 5 minutes then listenin to the loud noise of the knocking cam
In some of GM's engins they put under sized bearing, try using an Ac oil filter.
There might be a squeaking noise when driving slow in your 2000 Beetle because your suspension needs to be replaced. The squeaking can also come from the universal joint.