OK, so I got the new belt from Autozone. The problem is that it is too big for the pulley system, or I just can't figure out where the additional pulley is. All I see for the power steering system is two wheels. The other track I found is for the A/C system and that belt is also missing. I bought this van two weeks ago and I'll be honest, it's in rough shape. But the main issues to keep it going are the power steering system and from what I can tell, the ECU temp sensor. Due to what I could find on the forum with similar posts, its idle from cold start and even warm idle will kill it. I've found that it's either the ECU temp sensor or the Bimetal Vacuum Switching Valve. Does the power steering system only have the two pulley wheels? And what's the easiest way to loosen the ECU temp sensor with limited tools and not taking apart too many things?

Thanks