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Old 02-08-2013, 07:17 AM
Mike D Mike D is offline
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Join Date: Jan 2006
Location: Tucson, AZ
Posts: 5,358
My '85 SEL does the same thing. Never have figured it out. It's been doing it for two years. It gives me a mild cardio-check every time I look down and see the needle go rising but it's always dropped back to normal in the same fashion you described. Flushes, new T-stat and fresh coolant has made no change in its behavior. Beats me.
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