I don't really have any recent experience exploring the inside of a 240 door, but I would suggest that it probably won't be extremely difficult to find the problem once you get the interior panel off.
If you have door pockets in place you will need to be very careful how you handle them. They will be very brittle. They were designed to pull up and off at each upper corner. The force needed to do that could easily break them at this point in their life. The last time I removed these I drilled a small hole that I could get a screwdriver in and loosen the screws at the corners.
There are a certain number of screws and clips involved with removing the panel. The arm rest is screwed to the door. Once it is loose from the door the armrest pivots and must be rotated up quite a bit before it will allow itself to be pulled from its anchor point
Those 30 year old door panels are going to be a bit fragile. Releasing the clips that hold the panel to the door must be done with care. As you slide a stiff putty knife along the edge of the panel you will find the plastic clips that are securing the panel. Take a second putty knife and insert it on the other side of the clip. Twist the putty knives so that you raise the edges of the putty knives on each side of the clip. If you simply try to pull the panel loose you will succeed in pulling the panel loose, but it will result in breaking the fiber board and leaving the clips holding fast to the door.
Once the panel is loose it lifts up and off of the top of the door. The door speakers will need to be disconnected.
Hopefully someone with a better memory and more experience will chime in with additional information.
Good luck,
Randy
--
Any twenty minute job is just a broken bolt away from a three day ordeal
|