We recently moved from Indianapolis to Galveston.
Not too long after we got here our truck started acting funny (peculiar not haha).
Most times when we drive it, all the dash lights will be flashing on and off, this will usually stop after a while.
The only difference between here and our old home is there is a lot of moisture here.
I have tried spraying all of the wiring connections that I could find with WD-40 to no avail.
Is there a certain plug somewhere that I should check?
Wanna buy a used truck?

 

How old is the battery?

 

Not really sure.
We had a trusted mechanic who always took good care of our vehicles up in Indiana.
I had him go through it and give everything a good look at before we left.

I just assumed it was the moisture down here.

 

There should be a date sticker on the battery (MM/YY). These trucks start doing weird electrical things if the battery is on its way out, even if there's enough power to start it.

There may also be a small chance it's the ignition switch, but I think you'll find here on the board that a worn-out battery tends to be the cause of the "stranger" electrical anomalies people have reported.

 

I'm gonna go check it right now.

 

It doesn't have a date sticker on it.

 

Ok. Did you buy the truck used? I know you said you're not really sure how old the battery is...No date sticker on it would give me probably reason to believe someone (previous owner/seller?) didn't want the actual age of the battery to be known.

If it was me, I'd swap out the battery before trying anything else. (I also wouldn't put too much stock on the results of a battery test...It's not always indicative of the same conditions found under the hood, especially after the compartment is hot.)

If that doesn't solve it, at least you have a new, dated battery in there that you won't have to worry about for a long time.

 

Yeah, a new battery may solve the issue. Not sure if you're the original owner, but does (or did) the truck have an aftermarket remote starter installed? Those damn things can cause all sorts of issues, depending on the expertise of the installer.