2000 pontiac grand am makes noise until i turn on

it may just be something vibrating-inspect for loose bolts or components-----internal problems could be many things from bearings--valves--cams--timing chains......to tranny or engine mount----a stethascope can be used to pinpoint-----------try to get an olschool mech to hear-----also salvage yards are experienced

replace the fuel filter.

check the starter check the fuel psi check the battery and charging system

You won't know where to start the diagnostic process,until you pull the codes,that set the SVC Light.

How loud is your engine knocking or rattling?

vacuum line may b off

hi! there,
click noise on front wheel may also evident in
the suspension system when driving,these noises maybe produced by the springs and shock absorbers may either be a rattling noise or squeaks,Noises produced are usually caused by looseness of the parts, tightness of the parts and lack of lubricant.

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Could be a failed gasket at the exhaust manifold or even a blown head gasket.

You can call GM to find out what engine was originally installed in the car, based on your VIN number.