95 Plymouth Acclaim electrical short problem

I have a 95 Plymouth Acclaim that all in all runs well but it seems to have a mind of it's own somedays. I assume it's a short or a loose wire under the dash panel and was wondering if this is possible to check on my own. Occasionally when I start the car the indicators for the signal lights will be solidly lit; or the spedometer doesn't work; or the RPM gauge will jump around for no reason- - weird things like this that aren't really a problem just more or less annoying. Whatever the problem of the day is it will right itself by driving over a fairly large bump or if all else fails a swift smack on the dash works wonders! It's not a big enough deal to take into a shop at $90 an hour but if it's something I can fix I'd appreciate any ideas.

Thanks for helping!
Nat Sounds like there is a loose connection where the wires connect to the instrument panel. I think Chrysler sells an updated connection to cure that problem. We may need a Chrysler tech to come in and help us on this one. It can be a DIY job if you are mechanically inclined. So if I were to pull off the dash panel will I be able to see all the wires that need checked?? I know that's a silly question but although I am mechanically inclined I know nothing about the location of the inner workings of cars. You need to be careful when pulling the instrument cluster. If your gear selector is in the instrument panel, it is easily broken. You can disconnect it from the linkage under the dash first then pull the panel. There are probably 2 or 3 connectors going into the back of panel. Be careful of the back as it is a printed circuit board. Sorry i can't offer much more assistance but I don't have much info on Chrysler. Trying to do this from memory. Way2old is a Ford man. Us Chrysler guys know that Chrysler cuts a few corners on making those soldered connections on the printed circuit board. After 10 years of vibration, some of the connections crack or work loose. The solution is to remove the instrument cluster, take it to your workbench, and reflow the solder. Since you can't always see the cracks, you should reflow all the connections. There may be around 20 of them. If you are not comfortable with this chore, bring the cluster to a radio repair guy. Nat, let me know if you need more info on this operation. Thanks stevefl.

Thanks stevefl that sounds like a job I should be able to handle. I won't be able to do it quite yet - for some reason I don't want to work on the car without a garage in -30 celcius weather - - go figure!

But I certainly appreciate your help and I'll do just that when it starts to warm up.

Thanks every one