* Front Belt (longest): This usually drives the water pump and the crankshaft pulley. The crankshaft pulley is the main power source for all the accessory drives.
* Second Belt: You've correctly identified this as the power steering pump.
* Third and Fourth Belts: These almost certainly drive the alternator and the air conditioning compressor respectively. The order (which is third and which is fourth) could vary slightly depending on routing.
Important Note: Without a diagram or visual inspection, this is just an educated guess. Belt routing can vary slightly based on specific options and even minor manufacturing changes. The best way to be certain is to:
1. Consult a repair manual: A Chilton's or Haynes repair manual specific to your year and model Dodge Ram Van will have a diagram showing the correct belt routing.
2. Examine the belts: Carefully trace each belt to see which components it connects to. This is the most reliable method.
If you're unsure about working on your vehicle's belt system, it's best to consult a qualified mechanic to avoid damage to your engine or other components.
