I just replaced the radiator in my 2001 Seville.
Removed headlights and bumper for best access.
Took my time, replaced trans quick disconnect with new,
(per this forum)
new foam, new supply and return hoses, even new push pins for panels.
I filled the overflow bottle, drove a few miles, parked in the driveway, cracked the cap and checked the coolant level.
It was down so I added to cold fill level.

I drove it 11 miles to work, got out with the engine still running, all looked good.
So, got back in, put up all windows, shut it off, gathered my work stuff.
When I got to the front of the car, I had a puddle of coolant forming on the driver's side.
Popped the hood, cracked the overflow lid until it stopped hissing.
Opened the coolant tank cap, it burbled, slowly rose up and spilled over a little, then receded to the cold fill level.
Puddle didn't get any larger.

So my question is, does the 2001 Seville cooling system have an overflow relief valve of some kind?
(i.e I just overfilled it.)
Or do I have a new leak I have to find?

Thanks,
Mike

 

Well, it was leaking on the way home from work,
so I guess that-answers-that.
I'll have to start taking stuff apart tomorrow to try to find the leak.
...joy...

Mike

 

OK, so I tore the HUGE air cleaner/computer box assembly out to see what was leaking.

First, the car won't stay running without the big plenum chamber in place.
So I put that on, pivoted out of the way.

I let it idle, heat on, no leaks.
Aaaarrrrgh!
Poking around, I pushed on the lower radiator supply hose and that made it leak.
I just don't have a good seal on the supply hose.
Whew...glad it wasn't something major.

Mike

 

I've been driving the Seville a week now, and no more "issues".



275 horsepower, 300lb/ft of torque, 20 miles per gallon, Bose 10 speaker stereo;
I love to drive this car, but it is a NIGHTMARE to work on!

Mike