Is the cooling fan coming on?

> -----Original Message-----
> From: Vanagon Mailing List [mailto:Vanagon@vanagon.com]On
> Behalf Of Mike
> Kasun
> Sent: Tuesday, August 25, 1998 12:57 PM
> To: Vanagon@VANAGON.COM
> Subject: 83.5 Westy-help!
>
>
>       Need help diagnosing the dreaded overheating syndrome
> on my Westy.
>      Have searched long and hard on the list archives and
> have got many
>      good suggestions and fixes but still at a loss. Running
> the van for an
>      hour or so at highway speeds, the guage registers to the
> left of the
>      vertical and the red light is off. If you slow down for
> any reason the
>      temp goes up. After driving at lower speeds or idling
> for a while ,
>      the red light goes on, and the temp guage goes all the way to
the
>      right. After a while it will go back down and then back up
after
>      another while. At this point the guage and light are
> erratic, even at
>      highway speeds. After the van sits for a while and cools
> down, it will
>      again go for an hour or so with the guage registering
> just to the left
>      of vertical and the light off. We have replaced the coolant
level
>      sensor, flushed the cooling system, replaced the
> thermostat, and bled
>      the system. We also bypassed the rear heater core , as
> it was leaking
>      and appeared to be the source of air in the system and
> replaced the
>      blleder valve in the engine comparment as it was crumbling
apart.
>      Sorry for posting this common prob. but we really are at
> our wits end
>      and any and all advise would be greatly appreciated.
>      Thanks
>      Mike Kasun
>      83.5 Westy 115,000 miles
>      Mike.Kasun@Entex.com
>