i need help!

Well i just bought a 1995 mustang GT from my uncle.im haveing 2 problems with it one is when i drive it i hear this sound its like something is rattling or loose and i only hear it when im acclerating does anyone have any ideas what it could be.my second problem is sometimes it doesnt want to catch when i try to start it but when i try it the second time it will start,could it be cheap spark plugs or the timing?

Im a newbe so try to work with me.

Sounds like detonation. Could destroy your motor if not addressed. For starters, go get a good tune up set. Autolite plugs, good wires (MSD recommended by me) and a cap/rotor. Gap the plugs at .054, set the timing at 12 w/89 octane fuel, and change the fuel filter while you're at it. Could save you from buying an engine...

Well theres no way any of us can help you w/ your first problem, because tracing noises over the internet is impossible, sorry. Your second problem is somewhat normal. I know of a lot of cars that do that, that otherwise run fine. You may have a starter solenoid starting to go, however. I would have have someone take a look at it.

yeah i have the same problem with my 95 gt when i try to start it but it only hapens durring the winter here in detroit. hmm

if it sounds like its not catching the first time and the seckond time it will it sound to me like there is a dead spot on you fly wheel, and i have a question the computer should retard the timing when it senses detination right, isnt that what knock sensors are for?