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Old 04-27-2019, 08:59 PM
rapidoxidationman rapidoxidationman is offline
Join Date: Dec 2002
Location: Teton Valley, Idaho
Posts: 1,800

Pull the thermostats and drop 'em in a pot of water, then bring that water to a boil. Did the thermostats open?

Another check, especially with that many miles, would be to make sure the cooling stack is clean. There's been cases on this forum where birds have set up shop between the turbo intercooler and the radiator, effectively blocking air flow through the radiator.
'85 Mercedes Benz 300D, for when I want to be stately.
'05 Mercedes E320 CDI, for when I want to be even statelier.
'05 Chevy K2500 ext cab long box DMax: Everything my '03 was and so much more!

There's no point being a pessimist - it wouldn't work anyway.
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