I just did my t-stat amd sensor this week. Only drained the colant from the reservoir, placed a thick towel under the three connecting tubes (one small one to reservoir and two large tubes), and disconnected the them. Spilled about half cup of coolant from the housing. No mess at all. Used the silicone lub spray which I picked up from Walmart ($7.50?). This was so much easier job than I had anticipated. Refilled the reservoir with just about 1 gallon (pretty much what I pumped out from the reservoir). Drove around, waited for the engine to cool down, checked the coolant level, and refilled half cup of the coolant mix. All good!
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