LOTS OF QUESTIONS.. Help!

[RALLYBP_94]

It's an Automatic 94 DX..
1- I replaced the water pump and thermostat and the radiator is almost new, also the fluid. The car's temperature is like 4mm above the middle of the temperature gauges. To me, it looks like its overheating. but Is that normal?

2- (I jumped TEN and GND already) At what RPMs should the car idle when it is in P??Mine idles at around 1150rpms(between the 1000 and 1250rpm lines), it goes down to 1000rpms at then it goes back up to 1150 every like 2 seconds. Also, when I put it in drive it idles at 500rpms. I checked the air screw thingie and if i make it idle at 750's it'll idle at around 1500rpms when is parked. What the hell??

3- Where EXACTLY is the transmission filter??

4- When I drive at above 35mph I start hearing a sound coming from under and front of the car like if metal was rubbing on something. I dont really know what it is.. Any ideas??

Thank You.

[Marc93lx]

1. Thats where it always is on mine, you should be fine.
3. I think its inside the transmission.

[Semtex]

1.) thats normal
2.)500rpm idle when warm, 1500-2000rpm to warm car up when cold , normal
3.) i belevive you have to drop the pan on the tranny to access the filter
4.) possible dust shield on the back of your rotors (front), check your brakes pads that might not be wearing properly (front)

[dont know]

temerature is fine.
tranny filter is inside the pan
as far as your idle problem you may need to check you idel air control and or your TPS (throtlle position sensor) if they go bad your idle will fluctuate and or you will shut down at an idle
as far as your metal rubbing noise I would go with a front breaking system problem (the dust cover like Semtex said)

[Ambassador]

check inside the fuse box, there is a small relay, that might not be coming on ... or some other thing related to the temperature sensors.