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Re: GM Hot Hydroboost
Posted to HD/Fleet Forum on 7/21/2020 8 Replies

I agree with Brent, 165 degrees is not too hot. Let it run for 30 minutes or so and see if the temperature raises or stabilizes. If there is a restriction, the temperature will climb. Freightliner troubleshooting procedures list a temp of 180 degrees as normal... Login to read more.

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