I had a cracked head on my 2001 v-6 tundra. I need to conserve money and decided to try and do this myself. I removed the heads and got the valves done. The cracks were fixed. I am using the toyota TIS program as a guide. I torqued EVERYTHING to their requirement. I wasnt sure about the vacuum lines or the the other lines around the vacuum lines on the intake manifold. I simply followed the sticker guide on the truck hood. I replaced the timing belt, resealed the leaking water pump and replaced the plugs. I followed the instructions to the letter. It started a couple of times for about 3 seconds. It sounds like the timings off. The belt lines and cam gear lines all match up with the tdc marks. I may have rotated the right cam before the belt went on. When I installed the camshafts, i put the load on and removed the bolt. the dots lined up fine. All in accordance with the TIS program. I pulled off the valve covers again to ensure the camshafts where properly aligned still. I am going to check that next (wife said its time to eat damn it). I am soooo open to any other suggestions. Im not experienced in this. This is my first time doing anything this deep. Im an aircraft mechanic by trade. youd think this would be a breeze. Im stumped. Please help.