Not sure which 2004 Jeep Liberty Power Programmers & Performance Tuners are right for you? We have over 5642 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"Installed the programmer on my 2004 Jeep Liberty limited.
After installation i drove the Jeep on my normal commute and right away the MPG display started going up.It usually averaged 18 mpg,After a week it was averaging 21 mpg.
Also besides the MPG increase it seems more powerfull under WOT acceleration." —Len Z from Brick, NJ bought a Hypertech Max Energy E-CON for a 2004 Jeep Liberty, 3.7L V6.