what consist of a tune up for a 2002 Dodge Durango

What is your question?

I am trying to find out what a tune up consists of for a 2002 Dodge Durango that has 68,000 miles on it. The engine is a VA-287 4.7L SOHC

What makes this problem better or worse?

Nothing, just want to know what a tune up consists of

How long has your 2002 Dodge Durango had this problem?

haven't had problem