To find the correct tire pressure:
1. Check the sticker on the driver's side doorjamb: This sticker will specify the recommended tire pressure for your particular vehicle and tire size. This is the most reliable source.
2. Check the tire sidewall: The tire sidewall will have a maximum pressure rating. However, this is the *maximum* pressure the tire can handle, not necessarily the recommended pressure for your vehicle. Always go by the doorjamb sticker first.
3. Consult your owner's manual: Your owner's manual will also have information on recommended tire pressures.
Without knowing your specific tire size and whether your Venture is loaded or not, I cannot give you a precise number. Always prioritize the information found on the sticker on your driver's side doorjamb.