Ok.. here'* the deal. I've had a rattle at idle for a long time. Ok, i know that is the coupler. Havn't replaced it yet. Going to do that soon. A new problem has arised that i think is the supercharger also. It started from when i step on the gas hard it makes the horriable grrrrrr noise. I was talk it was the bearings in the water pump..... WRONG.... still does it. It does sound like a bearing to me though. As of recent the rattle at idel has become more of a intermintant chung. It'll run ok then go Chung spraticly every 5 secs or so. When it chungs the idle pully moves a lot too. Also now when i step on the gas.. even very easy... the car jerks a little.. has some hesitation.... It still jerks a little, but not near as much at high RPM'*.... Supercharger bearings maybe.

Ok, taking this piece by piece. If you know your coupler (and it sounds like it is) is going south on you, do the nosedrive seals and bearings at the same time. You need to pull it open anyway. This will rule everything else out. However, I'd say that noise and symptom would be more likely caused by missing teeth on the gears in the SC nosedrive. This can be BAD. It can cause rotor clash. Until you really isolate it, be VERY careful.

Keep in mind that the boost is entirely bypassed at idle. The SC has no effect on idle quality normally.

How'* the oil in the nosedrive, how long since the last change, and how much boost at WOT?

The oil level is fine. It does the same kind of jumping thing at wot. It almost sounds like a very serious engine studder, but i know that it'* not the ignition system. The Chung is so bad it almost stops the engine sometimes. The boost gauge seems to be operation normal, but when i get it some gas it feels like the boost wants to cut in and help me, and does some, but cuts out a lot, and i don't get must power at all.

Take the belt off and rotate that */C pulley around. Is it ceasing up? Is there play in it?

Funny question.....was your climate control in AUTO or ECONOMY during your observations?

Wow, i have that exact same problem. I was told it was just the exhaust manifolds rattling. It sounds like a bunch of rattling, like something is loose right before the car downshifts when you go to full throttle. Is this what your talking about?

I hope it'* not, because i don't need these problems right now

Ok.. found out was mine was... only cost about 100 bucks to fix it.... Good for me. It was the ignition thingy.... the thing that causes the spark plugs to spark. Crap.. somebody tell me what it'* called so i don't keep sounding like a moron. Sounded like Chunking becuase the engine only hit the pistion hard enough to just barley get it around.

ICM? Coils?

Yes.. it was the ignition coils.