Things that go bump in the night...

[Wayne]

I am not sure if it is correct or not but I had a similar sound on my
1984 - I concluded it was the parking brake releasing a bit and
grabbing. Are you on any kind of front to back slope?

Wayne Chappuis

--- In WanderlodgeForum@yahoogroups.com, "Ryan Wright"
wrote:
>
> Several nights now, I have heard a loud thump in my coach in the
> middle of the night. The first couple of nights it was loud enough
and
> startled me out of my sleep such that I flipped the security lights
on
> and went out hunting bad guys with a tactical light and a 9mm (bus
is
> parked on my private property behind a fence with a locked gate, so
> anyone lurking in the shadows by my coach is fair game).
Fortunately I
> haven't found anyone and the noise happened again last night, so I'm
> fairly sure at this point it's something on the bus itself.
>
> Basically, it's a "boom" type of echoing noise. It's loud, at least
> when you're sleeping in the back. Sounds like someone smacking a
big,
> empty aluminum tank with a baseball bat. I can't help but wonder if
> it's coming from the plumbing system? Maybe a loud burp of a tank of
> some sort? Perhaps a side wall on the hot water heater flexing? I
> don't know, I'm just guessing here.
>
> Has anyone else experienced this? I'm not running A/C or heaters, so
> probably not related to those. No engine or generator running,
either.
> Plugged into 50 amp shore power, running fridge, water pump, hot
water
> heater, battery chargers and lights. That's about it. No incoming
> water connection (I prefer to use the on-board water and just fill
it
> up every few weeks to minimize the damage in the event of a leak).
>
> Thanks for any advice.
>
> -Ryan
> '86 PT-40 8V92
> Tri-Cities, WA
>