My tail light on my 2003 jeep liberty (left and center only) keeps blowing out I even replaced the entire light socket and it still does it. Is there a relay that I should check. If I replace the bulbs, they will last 3 days then blow out again.

The first thing is to make sure there is no water getting into the lens. there are alot of cheap bulbs out there that dont last long at all, you replaced the socket which is good try this , when you buy a bulb get it from the dealer they will sell you a better bulb it will be a long life type bulb and if theres still a prolem them you will need to have the wiring checked to make sure theres good connections . a bad power or ground wire will destroy the bulb cause a higher than normal amp draw and poping the bulb.