My 92 9000S automatic, has been leaking fluid, and I cannot determine exactly what the fluid is, or where it is coming from. It's only apparent after the car has been parked several hours (like overnight). The leak seems about the size of a soda can top. I recently visited local dealer, and paid 600+ U.S. dollars, for what they called "Repairing/Replace" faulty waterpump. But when I advised waterpump was two months old, they suggested it needed an overhaul
. Okay, so they robbed me. End of that story
Now to the new discovery:
While looking under the hood, I noticed this little silver stem lodged on the inside well of car. Let me describe what it looks like. It's shy of maybe one inch long. One tip looks just like the pointed end of a spark plug. The other end has a pin tip that depresses in and out. It also has a rubber strip a bit from opposite end, as if to seal something. Additionally, the end that depresses in and out has a couple of threads near its tip to screw in (to something).
Now to my question:
Is it possible this little silver stem has come out of the rear side of my radiator? I'll explain why I ask this.
When facing the radiator, leaning inside, and looking straight down, there is this "black cog looking wheel" which protrudes from the rear side of radiator. It's located directly underneath the hose attached to rear of radiator. This cog wheel has a hole in the center of it. And when I felt around it, it seemed to have plenty of the loose fluid around it. Actually, the fluid is concentrated underneath this area (cog wheel).
As I am female, I did try to jam the spark plug looking silver stem into the hole, to see if it would fit . And it did go in the hole. But I wasn't sure how much pressure to apply, or if it really belonged in there, so I chickened out
I don't have a camera to show these parts, but I trust there is someone who can follow me
.
Could this leak be caused by this silver stem popping out? Does anyone know what this stem might actually be, or where it belongs? Please help if you can.
Thanks in advance
Debra

Now to the new discovery:
While looking under the hood, I noticed this little silver stem lodged on the inside well of car. Let me describe what it looks like. It's shy of maybe one inch long. One tip looks just like the pointed end of a spark plug. The other end has a pin tip that depresses in and out. It also has a rubber strip a bit from opposite end, as if to seal something. Additionally, the end that depresses in and out has a couple of threads near its tip to screw in (to something).
Now to my question:
Is it possible this little silver stem has come out of the rear side of my radiator? I'll explain why I ask this.
When facing the radiator, leaning inside, and looking straight down, there is this "black cog looking wheel" which protrudes from the rear side of radiator. It's located directly underneath the hose attached to rear of radiator. This cog wheel has a hole in the center of it. And when I felt around it, it seemed to have plenty of the loose fluid around it. Actually, the fluid is concentrated underneath this area (cog wheel).
As I am female, I did try to jam the spark plug looking silver stem into the hole, to see if it would fit . And it did go in the hole. But I wasn't sure how much pressure to apply, or if it really belonged in there, so I chickened out
I don't have a camera to show these parts, but I trust there is someone who can follow me

Could this leak be caused by this silver stem popping out? Does anyone know what this stem might actually be, or where it belongs? Please help if you can.
Thanks in advance
Debra