Q: How to Service a Belt Tensioner on a 5.9L Diesel on 2005 Dodge Ram 2500?
A: Before you service the Drive Belt Tensioner on a 5.9L Diesel, take out the accessory drive belt. After that, remove the bolt from the tensioner mount and then take out the tensioner (7). Place the tensioner assembly on the water inlet bracket so the dowel on its back is in the hole. Screw the bolt to achieve 43 Nm of torque and replace the drive belt afterward. The pressure in springs is so high that disassembling the automatic tensioner is not safe and should not be done.