Originally Posted by viper8907
im saying that the times it opens with the button it with actuate
The times it wont open with button i will go open it with the key and then push the button and nothing happens
I'm thinking there is something a little loosey-goosey with the actuator and/or its wiring connection. I think its own motion, during those times when it actually works, may be jiggling the connection loose, and possibly manual operation with the key and/or slamming the trunk lid closed will eventually make the connection again, at least temporarily.
Another longshot possibility is that the wires to or from the door-mounted release button have broken where they jump the door gap, but occasionally make contact again when the door is opened or closed. While you're testing this, I would leave the door in one position, either open or closed with the window down, so you can focus better on one area of the car when testing.
(Have you got a remote Keyless Entry transmitter for the car? If so, does the trunk release act any differently if you zap it with the remote?)