Location of e g r valve,1992 olds cutlas supereme 3.1

Sometimes there's a plug in the trunk you can remove to access the pump, but I believe that isn't possible with your model/year.

There should be a petcock(drain valve) on the bottom corner of the radiator. Turn it counterclockwise till coolant starts draining. Have a drain pan under the valve.

My car did this for a while until it would no longer move and I was told all sorts of things including cleaning (all the gunk near the MAF -hosing) which made it run for a month but did idle too high. So diagnose and get the codes from your car- the paperclip way (autozone cant cause its older than 1992).
Codes I pulled pertaining to this issue were 22 (Throttle Position Sensor- TPS Signal Voltage Low) , 23 (Air Intake Temperature- MAT Low Temp Indicated), and 34 (Mass Air Flow Sensor- MAF)
Easy to DIY with these 3 sensors

Hi, the idle air control valve is on the throttle body held in by 2 bolts. You will need to remove the air ducts to access the throttle body. See picture for the location of the valve/motor. Sometimes the valve is just dirty or the passages blocked by gunk. When taking the valve out, try to save the gasket. After taking the valve out, check the passages and the valve itself for dirt/blockage. If it's dirty, try cleaning and reinstalling before you buy a new one. Use the old gasket, if possible.

1-2-3-4-5-6 Does your setup look like this?

Passenger side, under the hood, next to the fire wall, under the alternator, hope this was very helpful.

this sounds like you need a new blower motor, check fuses first if not blown replace blower motor

your ac is freezing up try replacing the expansion valve

sounds like a fuel problem either a dirt blockage or the computor is mailfuctioning