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MG
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771 Posts
Discussion Starter · #1 ·
When coasting downhill in a manual drive LR with the transmission in gear and the clutch out:
1. Does gravity drive the engine? I'm not sure if there's a sprag clutch somewhere that prevents torque going back through the transmission.
2. In the case that gravity does drive the engine, will the ECU shut down fuel flow if I stay off the gas pedal?

Just curious...

Cheers,
 

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Series Moderator
Joined
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536 Posts
in a sense yes

gravity will indeed drive the engine going down hill via the manual box there is no freewheel clutch in the box

the ecu will fuel the engine at idle levels so will still will be providing fuel to the engine,so it will offer some retardation on a decline depending on speed,gear selected and also how steep the hill is the higher the gear and speed the less retardation effect will occur
 
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