Exhaust or jake brake or neither?
How do I know if I have a jake brake, an exhaust brake or is it possible that we don't have either of these? We have a 2001 holiday rambler imperial with an Allison 3000 transmission. Am extremely...
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Well since no one told you----if it is working properly, you turn it on, remove your foot from the accelerator, and you will feel it not only slow down but shift down.....Thats basically how it works. When it is turned off only your vehicle brakes slow you down when applied.
