06 malibu V ride issues

Went to put the boat in the water this weekend and all of my gauges were working except for my middle gauge that is a digital read out gauge. So I attempted everything to trouble shoot this with no luck and then all of the sudden the gauge started working again. Ironically at this time, my blower quit working as well. After this little trouble the computer worked every time after that but the blower was hit or miss. Has this happened to anyone else or does this mean my computer is on the fritz? Also my depth finder digital readout stopped working for a few minutes then started to work again......Guess the boat is starting to get to the magical age where things will start falling apart; maybe I will be able to convince the wife its time to upgrade! Thanks for the advice.
Chris

Sounds like some loose wiring to me.

We had similar problems with blower and depth guage, where it would bounce from .4 feet to its actual depth. Luckily ours were some loose wires that must have came loose over time after I wired stereo, sub, amps etc. Although we went ahead and replaced the blower anyways. If its not ur wiring loose, what condition is your battery in? Those issues along with our key switch were the only issues I can remember.

My first thought was loose wiring but I traced all my wires down and couldn't find anything loose. Also double checked the safety/shut off switch and all where ok. Have two batteries; one is brand new and the other one is factory from when I bought the boat. I have a tender on it that I keep plugged in whenever not in use. Thanks again
Chris