light bulb under the hood

[ZiggyPA]

Can anyone please provide me with a picture or type number of the light bulb under the hood? The owners manual just says '10 watt' but evidently a standard 10 watt tube bulb doesn't fit...

['97ventureowner]

Does it look like this?

If so, it is a 1003

[ZiggyPA]

Unfortunately, there wasn't a bulb in it when I got the car.
It looks like it needs some kind of tube light like this:


The standard 10w tube light is too small.

['97ventureowner]

Hmm. Your profile says your PA is a '91 and that's supposed to be the bulb. The '92 used a 561, and here's a photo of one:

[ZiggyPA]

I couldn't find a 561 to try, but I see it is about the same length as the other bulb which seems a bit too short.

Here is a picture of the light with a 10w tube bulb in it for comparison, it looks like it fits but this is an illusion, the tiniest movement will make it fall out.

[Blue Bowtie]

The 561 will hook onto the end terminals and not fall out.

[ZiggyPA]

I got a new 561 bulb, but it still doesn't work. When and how does this light go on, I don't see a switch as with the trunk light?

[brcidd]

Should be a mercury switch in the base of the light- you can't see it- and oh- BY THE WAY turn on your parking lights- Buicks tend to think you only need the light when the lights are on....and the hood is up...as I recall...

[ZiggyPA]

Thanks for your reply, I tried it with the parking lights on but it still doesn't work. I take it the problem would likely be this mercury switch then?

[HotZ28]

Do you have power (12v) to the mercury switch?