My divers side running board on my 09 Escalde ESV doesn't always work properly. 50% of the time it will operate normally, the other 50% it will begin to retract, but it's like it gets stuck then goes back down. The interesting part of this is that if the truck is running, it will go up and down just fine. When it is actually working properly it does appears to go up and down much slower when the truck is not on. The passengers side works fine all the time. Anybody have any ideas? It's not a big deal to me b/c I never use them, but my wife likes them so I would like to have them functioning if at all possible. Thanks.