My 2007 lift gate will not openback up. It would work for a while and then not. Now it will not open at all.

Your only solution might be to access the liftgate from inside by removing the panel, then try pulling on the cable that opens the latch. If it opens, the handle (the outside one, the one you pull) might be broken where the cable attaches to it. I have seen liftgate handles work intermittently when the plastic tab that retains the cable is in the process of breaking off, and when it finally does, no more opening liftgate.

If the liftgate still does not open, the latch is stuck. Spray with something like PB Blaster (auto parts stores carry it) or even brake parts cleaner (to dissolve gunk that might be making it stick).

If / when it starts to work again, apply some lithium grease to the mechanism to keep it from getting stuck again.

Hope this helps.

Bilal Hassan
Clarksville, MD