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Old 08-15-2016, 11:51 PM   #13 (permalink)
me and my metro
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Join Date: Jun 2008
Location: Oregon
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Economy Saturn - '02 Saturn L200
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I had a Ford Escort years ago that would only overheat on the highway, it was perfect around town. It had a restricted flow radiator, new radiator solved the problem. It is possible that the three row radiator could be flowing too much water and not removing enough heat. In a stock car we set temp by changing to size of the restrictor we used in place of the thermostat. We ended up with a 5/8" hole to keep the temp where we liked it in Bakersfield. The 11/16" hole ran hotter due to the water moving too fast through the system.
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02 Saturn L200 5 speed- 265k miles
84 Gmc 6.5 na diesel K30 4x4, TMU
2006 Lincoln Navigator, 215k miles
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