The coolant level sensor should definitely have an o-ring on it. The
sensor will crack easily if overtightened, I usually just smear a light
coat of silicone grease on em and snug down by hand with a socket, no
ratchet attached. (or if it's an old one I'll put a small bead of black
RTV on the oring)

Check your oil if the buzzer goes off in turns and bumps, maybe it's
really low? :-)

karl

Sunshine wrote:
> The buzzer, now that I think about it, only goes off when I round a
> corner or hit a bump.  I'm thinking I might have pinched it while
> replacing one plastic white coolant pipes because it blew off at where
> it connects w/ the rubber radiator hose....the plastic end popped off,
> therefore shoving the metal piece into the rubber part of the hose, see
> this article for more reference:
>
> ANYWAY I think when I lowered the spare tire to get at the hose to take
> the old one out and install the donor one from my parts vanagon, I might
> have pinched the wiring and therefore grounding it out when I hit a bump
> or turn and causing the buzzer to sound.
>
> NOW, I tightened the coolant level sensor down a bit and it still seems
> to be seeping coolant, although not as bad, anyway I did order a new
> coolant level sensor but it didn't call for an o-ring to seal it and the
> old one doesn't have one, so I'm not sure if I should just maybe clamp
> the coolant hose and take out the expansion tank again to retighten down
> the coolant level sensor?