Retard switch
My neighbor just bought a new 2013 Fleetwood Expedition 40X with a 360HP Cummings and Allison transmission on a Freightliner chassis. We were talking about the "Retard" button and he said the owners m...
Forum Discussion
It states "Engine braking: VGT"
VGT stands for Variable Geometry Turbo- that is the retarder that you have in your MH. It is similar to an exhaust brake in that it affects exhaust flow to slow the vehicle down. The vanes reverse or aperture closes (depends on engine manufacturer) to create back pressure with much the same effect as an exhaust brake.
http://cumminsengines.com/vgt-turbocharger
http://cumminsengines.com/uploads/docs/4971282.pdf
Steve
VGT stands for Variable Geometry Turbo- that is the retarder that you have in your MH. It is similar to an exhaust brake in that it affects exhaust flow to slow the vehicle down. The vanes reverse or aperture closes (depends on engine manufacturer) to create back pressure with much the same effect as an exhaust brake.
http://cumminsengines.com/vgt-turbocharger
http://cumminsengines.com/uploads/docs/4971282.pdf
Steve
