You know when you go to the doctor and tell him/her that "when I do this, it hurts?"
.... and they say: "then don't do that."

Well, why not just turn the head light switch off and start the engine and let us know
if this still happens?

I'd "treat" the belt with "treatment" that your FLAPS can provide. It sounds like an
alternator-load-related matter to me.

bob
On Feb 24, 2011, at 11:58 AM, Don Hanson wrote:

>  Twice in about a month, my engine alternator/water pump belt has squealed
> on start up...ceasing to make the noise after just a slight blip of the
> throttle.   I think this  happened  both times when I've forgotten and left
> on the headlight, then started the van from there.