I told my son that it MIGHT be a drain off, but was not sure as I did not notice it there when I drained the system.
When I drained it a few weeks ago, it was gross looking.
I am talking, it looked like a babies dirty diaper, on a runny day. (Hint to all the parents out there)
I took the reservoir off and cleaned it out as good as I could.
I replaced it with water and filled the Reservoir up with 100% antifreeze, however.
I was not able to get all the Antifreeze in.
I checked the cap, but cannot remember what the o-ring looked like, will have to take a look at it again.
With the way the water looked, it could be that the thermostat could be bad, due to all the clogged up water.
I put it to you this way.
The reservoir was so thick with sludge, that when I poured it out, it actually did look like what I described above.
And it was right, thick as well.
Maybe a new thermostat might help it along, but hoping that the radiator is fine.
I will send my son a link to pick up the thermostat and come by tomorrow to swap it out.
This guy does not have a clue what he is doing, I don't believe.
But is the thermostat located in the same place, as he is showing, for the 99?