2004 Dakota 3.7L - Is there a diagram in here somewhere that shows where all the vacuum hoses are and the ones I need to look at? I have a 0442 code for a couple weeks now and trying to get it cleared. I have replaced the gas cap. truck is 12 yers old so I figure just replace them all. Just need to know which sizes and how long a hose to get.

 

There should be a diagram posted under the hood. For anything specific you'd need to take your VIN and see a dealer - it depends upon the emissions package that your truck comes with.