Re: Help!!! I've got Supercharger Problems...
My transmission runs around 150 most times in the winter. It runs 180 on long highway trips and will be closer to 190 on hot summer days for long highway trips. The book says 180 to 210 is normal operating range and the tech at the dealer said that's normal. The only time I've seen it over 200 was on a hot day trailer towing and it is the only time I ever used the towing button on the dash and that cooled it back to around 190.
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Hummer, like nothing else
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