I have and '07 2500 auto 4x4 that is acting crazy. When pulling a trailer home over the weekend, came to a stop and pickup did not want to move. Made it home, parked it now when in reverse horn honks and lights flash, no speedo, will not move in reverse, only has 1st gear in drive, abs & check engine lights are one, will not shift into 4 wheel drive.....any suggestions?