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750 Running Temp Plummets on the Highway (archive)

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Posted by chris on January 02, 2001 at 08:59:34:

I recently started having a problem with my 750 "cooling off" operating temperature while driving at highway speeds.

The car warms up (albeit slowly, local temps in the teens and twenties) while driving stop and go through town. The oddity occurs when I get on the highway and get up to 70-75 mph. My temperature gauge just plumets from the dead center correct local to the Blue "cold engine" marks.

Can anyone provide any insight. I first thougth I might have a "stuck open" theromstat, but that wouldn't explain the normal temp ranges for in city driving, or would it?


90 750iL 83K

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