I've found a way to fix the wipers on the ES44DC that comes with Marias Pass.
You will need Sherman Hill to do this!
Step 1: Copy the es44_wipers.ban from \Steam\SteamApps\common\RailWorks\Assets\RSC\ShermanHill\RailVehicles\Diesel\ES44AC\Default\Engine
Step 2: Paste it to \Steam\SteamApps\common\RailWorks\Assets\RSC\MariasPass\RailVehicles\Diesel\ES44DC\BNSF\Engine
Step 3: Copy the es4ac_cab_wiper_speed01.ban, es44ac_cab_wipers01, and es44ac_cab_wipers02.ban from \Steam\SteamApps\common\RailWorks\Assets\RSC\ShermanHill\RailVehicles\Diesel\ES44AC\Default\CabView
Step 4: Paste them in \Steam\SteamApps\common\RailWorks\Assets\RSC\MariasPass\RailVehicles\Diesel\ES44DC\BNSF\CabView
**DISCLAIMER**
Use this information at your own risk, I am not responsible if your CPU crashes, Gambles all your money away at the slots, Guilt your friends into giving you free pens, Gender stereotypes your mother, Gains access to the Library of Congress, Gases your enemy's house and sets it ablaze, Gores your family with an Elephant, Grunts out the Alphabet, Goes Ghost, not unlike Danny Phantom, Guarantees itself an Oscar winning performance, Glosses over the entire 19th century while teaching History, Gazes longingly at the women across the hall who will not return it's affections even after sending her $80 in roses, Gesticulates it's feelings, Googly eye various fruits for your Arts & Crafts class, Give things unfavorable reviews on meta-critic, Gathers naked pictures of George Costanza, etc.

