Hello GMFORUM and fellow 3800 people,
I am new here and this is my first thread. I recently purchased a 2003 SSEi on a hunch that I could fix its problems fairly easy. I use to own a 94 SSEi until I took out a deer back in 2001. I always dreamed about having the Series II and now I finally got one!
I could obviously tell that the intake manifold gasket needed replaced when I bought the car so I had it towed back to my house. Yesterday I removed it and the pics will show what I found. It appears the coolant passage is severely clogged and I am wondering if I need to go further into the valve train for cleaning and inspection. I did remove the front valve cover and didn't notice anything out of place.
The previous owner said the radiator was very recently replaced, so I am thinking flush it. Replace the water pump and clean the coolant container since its brown (like a HG problem). I am also wondering about the sludge and carbon build up inside the passages, how can I clean them effectively??