Timing belt replacement trouble with a supercharger

Don't imagine that the SC should enter into it, since it is accessory belt driven. The best place to start would be with a timing light to verify that everything is lined up (if you don't own one, you now have the motivation to go to Sears and pick up an Actron for $30). If everything is where is should be, then you may have a problem with the position sensors at the cam or crank. I admit that I've screwed up a few of those myself doing tbelts on these over the years, so thats a possiblity.

I noticed that you put a comma in that sentence. Just wanna make sure you lined everything up with the old belt on. In other words, since the crank spins twice for every cam revolution, you didn't line the crank up @ TDC, remove the belt, and then spin the cams a half turn to line them up, right? Ive seen that a few times, and it'll definitely keep it from starting! That's all I have. If the truck was good before, then there are only so many places to go. By the way, those yellow marks were probably put there by the last guy to change that belt. If you didn't put your own marks, then use the factory etchings on the cam pulleys and the crank sprocket. Post if you need more help.

Thanks for the response. It wasn't the supercharger.

Timing was the problem. My friend's friend, a mechanic, took a look and saw that there were 2 timing marks on the crank. I was 90 degrees out.

He said that TDC is usually 12 o'clock on the keyway for the crank. The mark that I should have used was closest to the engine block. I used a mark away from the block. I didn't make my own marks before disassembling because I thought the Toyata guys had everyting marked. In fact, the yota guys had an extra mark to throw me off.

Thia was a good lesson to learn.

Find TDC before disassembly and mark everything before you take it apart.

My 4 runner started up with no problem after that.

Which Craftsman timing light are you referring to. I find three on their site but none of them mention Actron and the Cheapest sale price is $34.99. Any info appreciated.