Need Help/Advice on Caravan 2.4 Timing Belt Please

If it is the same dohc cam as in the pt cruiser then yes it is possible. There is a mark on the block for the crank pulley and two different marks on the cam sprocket. On the cam sprockets there should be a notch that is painted white and one on the opposite side that is not. When the crank is aligned to its mark the white notches on the cam sprockets should be facing each other and then the tensioner be adjusted. Then the motor should be turned over by hand several revolutions by hand with a ratchet and verify the marks are still good after the tensioner adjustment. You really should have a manual for this so you can read and look at some pictures for this. There is also youtube. Good luck