Electrical problems.. please help! :(

hi, I have some electrical problems in my 97 grand voyager... any help would be great! I don't know if these are all seperate problems or somehow linked... :(

1. The Guages (Speedo, Temp, feul etc.) go on and off all the time. Like the whole panel is faulty... sometimes when I get frustrated and give the dash a thump, they turn on, (but not all the time)

2. The light on the radio/clock doesn't work.

3. The blower position switch for the A/C stopped working, (can't change from floor position, to face, to windscreen etc.)

4. The A/C on/off button and the one next to it always flash for the first fifteen minutes after I start the van, then goes to normal.

Pleas if anyone can help me with any of this it would be great, I can't afford to take it to an auto electrition.

Mahalo!
Jasmine

The thumping of your dash suggests there might be a poor electrical ground under the dash involved. You can test that theory out by attaching a wire someplace under the dash and attaching it back to the negative part of the battery or frame (i.e. another good ground). I assume your battery connections are tight.
Blower problem: vent valves operate on vacuum supplied by the engine. There is a hose connection on the firewall that goes to your heater/ac and an engine vacuum line connects to that. Look for a cracked hose or a hose disconnected.
AC/Heater is flashing to tell you there is a problem of some kind. It could just be the no vacuum issue. If not, I believe more deteailed problem codes are stored in the computer.

Try what Yogi said then start looking at the Body Control computer. It controls most of the electrical accessories. Look through the threads in this forum. There are many entries concerning this computer that can give you a direction to go. Cheers!