I have a 2004 G35 Coupe. When I want to start the car it doesn't start quicky you gotta hold it for a lil longer. I was wondering what the problem is. Also when driving over bumps it makes a squeeking sound and other weird sounds. Anybody know whats up?

 

the sound is definitely rear stabilizer links and bushings, the reason why im sure is, i got it done today so they ll replace the parts, but it takes 2 hours (in the mechanic(not dealer) to replace) cost me 250 bucks ,i live in canada, so dont know how much it would be over there.