I have a 2004 Chevy Colorado, 3.5L, 5 Cyl. When I turn on the ignition the wipers work for 3 sec and just stop wherever they may be at that time, do not park properly. The same happens when I set the wipers to intermittent, low, or medium (3 seconds then stop). The only speed that works regularly is high. I found a TSB which I think applies #3827 and NHTSA Item Number 10019181. I've replaced the motor and the two relays with no change. I am not real strong in the automotive industry but am willing to invest some elbow grease and learn. Any help in resolving this problem would be appreciated. Thanks in advance!