It doesn't work with 04's Try your local autoparts store Brad, they should scan your truck and turn your check engine light off for you for free.
A drive cycle is more than just driving twenty miles on the freeway. Its a OEM prescribed number of starts, stops, hard and light accelerations and cruising. Depending on how you drive it could take days or weeks, but the computer is looking for these certain prescriptions to occur before it considers itself in a drive cycle. Only then will it perform the self diagnostic of the fuel tank and cap seal and turn off the light.


97 Wrangler Sport, 31" BFG All Terrain, .30 over 4.0L w/ Comp cam, P&P Head, Banks Header, Throttle body, chip.