Arrrrrgh!...that's no good. Sorry to see she's giving you problems so soon.Originally Posted by WormGod
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With no visible leaks & fluid levels topped off, all indications point toward something restricting flow.
I know it's a long shot, but you didn't plug a heater hose or other hose with a rag or something (to keep things clean)?
Another possibility might be a kink in one of the coolant hoses.
Also, grab a flashlight & look under the intake manifold with the engine running, in the general vicinity of the t-stat. I guess without any antifreeze smell, it's prolly not a leak though.![]()
In any event, good luck finding the prob.