Sunshine! Good to see you here! The buzzer is for oil pressure, not
coolant level. Sounds like you have a new problem. Check the wire on the
oil pressure sender that resides down by the lower left of the crank
pulley. Then, if that's in place, check the 2-wire plastic connector
that both oil pressure senders go to, it should be somewhere in the
vicinity of the forward end of the AC compressor. Can't have any
corrosion if that. I assume that you put in good 20W50 oil when you
changed it last. And a proper VW/Mann/Mahle filter. If all is good you
might need to replace that rear sender, some vans came with the wrong
one installed from the factory. Should be a .9-bar sender IIRC.

Karl

Sunshine wrote:

> Anyway I had a question for you guys.  My Vanagon was overheating so I
> put in a new thermostat, flushed the coolant system, burped the beast,
> did some other coolant hose/pipe replacements and burped her lines
> again....she drove well and the coolant seemed good and saying at a
> good temp, then she began beeping as it does when the coolant level in
> the expansion tank is low, then I noticed a leak around the coolant
> expansion tank coolant level sensor and that my radiator fan stopped
> coming on as well.  So I just replaced the thermo switch or radiator
> temp switch just now.  I haven't gotten it hot enough to kick on the
> radiator fan but I just test drove her around a few mins to hear that
> the buzzer kept sounding and that the coolant temp gauge didn't float
> over the LED bubble, but rather was on the hot side.
>
> I have a new coolant level sensor ordered and coming in the mail, but
> until then....any thoughts, comments or advice for me on this issue?