yannicksjh

Hi, i 've recentluy bought a second hand summit. This truck is in perfect condition (looks like the guy never used it, like he said). Only problem is that is sometimes seems to hesitate when engaging from low to high gear. I come to a complete stop, switch it to high gear and alot of time nothing happens? I'll try switching back and forth and still nothing. When i know i've switch it to high gear and don't run it very fast in case it switches (which sometimes it does). other times it switches fairly quickly??? As for switching from high to low, it always works. Is there any way of adjusting this. please help. thanks