PCV Valve Location on a 1995 Pontiac Grand Prix 3.1?

Question edited for clarity 'year MAKE model'.

I see Larry has answered, but here are the full diagrams.

Fuse Box Diagram Pontiac Grand Prix (1997-2003)

https://fuse-box.info > pontiac > pontiac-grand-prix-19...
Fuse box location ... It is located in the glovebox, behind the cover on the right. The location of the fuses in the passenger compartment: Pontiac Grand Prix ...

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  Fuse Box Diagram Pontiac

  https://fuse-box.info > Home > Pontiac
  Fuse box diagrams (location and assignment of the electrical fuses and relays) ... fuses and relays) for Pontiac Grand Prix (1997, 1998, 1999, 2000, 2001, ...

Pontiac Grand Prix mk6 (Sixth Generation; 1998) - fuse ...

https://www.autogenius.info > pontiac-grand-prix-mk6-...
Feb 26, 2017 - The underhood fuse block is located on the passenger's side of the vehicle in the engine compartment. Pontiac Grand Prix - fuse box - engine ...

Pontiac Grand Prix 1998 Fuse Box/Block Circuit Breaker ...

https://www.carfusebox.com > pontiac-grand-prix-1998...
Jan 3, 2021 - Pontiac Grand Prix 1998 Fuse Box/Block Circuit Breaker Diagram ; Circuit Breaker ; HEADLMP, Headlamps ; PWR SEAT, Power seat, Power lumbar ; PWR WDO ...

underneath this sensor on the passenger side of engine
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look on the car bonnet

There is no drain plug or valve on most modern radiators. You have to remove the lower radiator hose in order to drain them.

Click here to see.Here's another.Here's the pcv valve.

On this website (link below) you find fuse box diagram and description for Pontiac Grand Prix 1995

Pontiac Grand Prix mk5 Fifth Generation 1995 fuse box diagram Auto Genius

Try replacing PCV valve on the valve cover-had same problem one time on a 3100 I had.

If I remember correctly this vehicle has a plastic plenum and the pcv valve is inside the plenum. Only time it is usually replaced is when the intake gasket needs replaced (and it will).

check the pcv valve and or the mass air flow

the pcv valve will be sticking out of the valve cover in either the front or back. and as for the dexcol, i would have it flushed really well and replaced with the reg green coolant. ive seen that stuff get bad quick.