Nope
2007-01-07 12:35:27
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answer #1
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answered by Anonymous
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yep - diesel engine uses reversal of exhaust gas against engine compression to slow the truck - constant jake braking on a downhill stretch of road is safer than catching your brakes on fire and rolling your truck 1/2 way down a 7% 7 mile grade.
2007-01-07 20:30:21
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answer #2
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answered by Norman 7
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Im a truck driver, they are Jacobs brakes, engine brakes on diesel engines. They open the cylinders on a diesel engine slowing the engine down and slowing down the tracter trailer.
2007-01-07 20:28:43
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answer #3
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answered by Anonymous
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On a semi-truck (big rig) it is used to slow it down through downshifting the transmission. That's the really loud noise you hear once in awhile.
2007-01-07 20:29:37
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answer #4
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answered by Anonymous
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they are the brakes on a tractor trailor, and they make a loud noise
2007-01-07 20:28:25
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answer #5
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answered by bar_b_c 2
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semi brakes for anti jack knife I think
2007-01-07 20:28:52
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answer #6
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answered by Anonymous
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its something on semis to slow them down they are what make the weird noise on the highway when they are coming into a town
2007-01-07 20:28:38
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answer #7
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answered by Anonymous
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I heard it a long time a go but no I don't know what that is
2007-01-07 20:38:54
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answer #8
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answered by Anonymous
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Yes i have one on my truck at work
2007-01-07 20:28:05
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answer #9
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answered by fordperfect5 7
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Yes they are in big trucks.
2007-01-07 20:28:48
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answer #10
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answered by PenguinsWife 4
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