'82 Coupe power locks

[Jon Rowe]

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Every so often, about 1/3 of the time, when I try to lock the doors the pas=
senger side lock doesn't engage and the compressor in the trunk continues t=
o run. It usually takes a minute or two to go. But once it accually ran the=
 battery down, so I kind of have to watch it. I can just walk over to the o=
ther door and lock it, but the compressor still runs. I can tell when it wi=
ll and wont go because the compressor sounds different once it kicks in. Is=
 the compressor bad? Could there be a leak in the tubing somewhere?