Well, it seems the overheating issue is finally resolved, it now takes forever to warm up lika any diesel. The problem was the thermostat, I should have know when Napa had trouble looking it up for a 93 Hummer. The thermostat was for a 6.2 diesel chevy application and was physically too long for the Hummer thermostat housing.... so it couldn't open up much at all. Since it was the second thermostat to go in, I assumed that the problem was the radiator, so I had it backflushed too. Now with the correct thermostat and a completely flushed and backflushed and reflushed system, it runs 190 again.... I thought it had sprung a leak, that's why I didn't make it to the meeting today. But after running it for more than an hour, including up and down the road and back to the driveway, no leaks are evident. I guess the puddle in the driveway was just sludge from me spilling some antifreeze while troubelshooting this thing mixed in with some snow.
Update your rig status here!
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