Hey don't get me wrong, I'll be thrilled if the T-stat is the only issue! I just found it strange that the one I removed appears to operate correctly.
Originally Posted by scottydl
I did notice a bit of moisture on the bottom side of the oil cap (I'm talking a few clear drops), and a bit of gunk that came out of the radiator when I pumped out coolant for the T-stat change, which I then later dumped back in.
I didn't really specify here, but I'm wanting to rule out (or in, if necessary) oil in the coolant and/or coolant in the oil. When I bought this car a couple weeks ago, the coolant level was a little low and I topped off... so it'* going SOMEWHERE but I haven't experienced any rapid coolant loss yet. I'll be keeping an eye on it for any possible LIM gasket issues.
Current GMs: '95 Chevy Suburban C2500, '69 Pontiac Executive
Former GMs: '83 Buick Park Ave, '73 Buick Electra, '92 Chevy Caprice 9C1, '98 Pontiac Bonneville SLE, '99 Olds Aurora, '00 Buick LeSabre