I seem to have a coolant leak.

[OR VietVet]

Drive it and check the coolant level. Drive it and check the coolant level. Drive it and check the coolant level........Repeat!

 

[TURNz]

Drive it and check the coolant level. Drive it and check the coolant level. Drive it and check the coolant level........Repeat!

that's been my plan so far. Though i get so nervous about opening the cap before its cooled off. I saw a guy get sprayed with coolant before. So i always wait until it's down to 140f or so. Which can take a while.
I'm off work today, and i need the tahoe all day tomorrow.
So hopefully I'll get a few drive and check cycles in.

Is there a way to tell if the stat is opening or not?

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[OR VietVet]

If your gauge looks good and you are getting heat inside, the stat is doing it's job. Plus, if you had a laser thermometer you could point and click, so to speak. Always let the coolant cool down and that helps air pockets escape.

 

[mattt]

I'm going to be replacing a water pump soon here. I may change to a different coolant instead of Dexcool. Does the 5.3 block have drain plugs like previous generation SBC and BBC's? I'd like to drain the block during the swap, even if I don't change coolant type. 266k miles could have built up crap in the block water jackets. Thanks in advance.