Definitely might be the problem. Mine is an '88 as well!

Thanks,

John
On Oct 16, 2015 11:37, "Neil N" <musomuso@gmail.com> wrote:

> While replacing the coolant pump on my '88, I decided to replace a length
> of wire
> and connector to the high pressure oil switch.
>
> The oil pressure switch looked original.
>
> Soon after, I had a similar issue; light/buzzer would randomly come on.
> Replacing this switch cured the issue.
>
> If the oil pressure switch is old, maybe working on wiring, cleaning
> contact of oil pressure switch, disturbs an internal part causing it to
> fail intermittently?
>
> Neil.
>
>
> On Fri, Oct 16, 2015 at 8:09 AM, John Rodgers <jrodgers113@gmail.com>
> wrote:
>
>
>> The connector was cleaned then brushed with a wire brush to ensure good
>> metal to metal contact before being hooked back up.
>>
>> John
>>
>
>
>
> --
> Neil n
>
> Blog: Vanagons, Westfalia, general <http://tubaneil.blogspot.ca>
>
> 1988 Westy Images <https://picasaweb.google.com/musomuso/New1988Westy>
>
> 1981 Westfalia "Jaco" Images, technical <http://tubaneil.googlepages.com/>
>
> Vanagon-Bus VAG Gas Engine Swap Group <http://tinyurl.com/khalbay>
>