Thread: Vacuum engine to improve fuel efficiency? (after burner engine)
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Old 05-08-2020, 12:03 PM   #16 (permalink)
Piotrsko
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Quote:
Originally Posted by cRiPpLe_rOoStEr View Post
Diesels are not usually known as a good source of vacuum anyway.
No they aren't, so the F250 uses a small electric vacuum pump and a 1950's style vacuum heater select box.
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