First, I realize that this forum is mainly for off-road topics, but I have a problem that is beginning to bother me. I own a '97 Sidekick Sport, and am having issues with the cruise control on it. The problem I am having is when I get up to the speed I want and engage the cruise, then let off of the gas pedal, the truck immediately loses 5-7 MPH, then the throttle opens up to regain the lost speed, the converter unlocks, and the truck accelerates back up to the set speed. However, the converter will not lock back up, even after several minutes. Sometimes it will downshift into 3rd gear, get back up to the set speed, and not shift back into Overdrive. This is all on flat ground by the way. If I cancel the cruise, let the converter lock back up, reset the cruise and hold my foot on the pedal for 15-20 seconds, the cruise will (sometimes) then take over without unlocking the converter. Is this normal? I notice that anytime I press on the pedal it will unlock the converter. Being my daily driver, I'm trying to get as much mileage as possible, and that 2-300 RPM difference seems substantial. What can I check, or do I have to go to the dealer? The nearest one is 100 miles away. Can I take it to a Chevy dealership? Would the Tracker diagnostics for the same year be compatible? Is this even a problem, or just something that these things do? Thanks!