Russ,
1. Do a search on "piezo" there was a recent discussion about replacing the buzzer http://www.radioshack.com/product/index.jsp?productId=2062398#tabsetBasic
2. Your engine wiring manual should be reviewed. The way it works is that your lift pump comes on in two ways: a) when your glow plugs are energized with the key in the glow plug position and b) when your oil pressure comes up. Here's a link to other links that discuss how it works: http://c34.org/bbs/index.php/topic,5078.msg41829.html#msg41829
1. Do a search on "piezo" there was a recent discussion about replacing the buzzer http://www.radioshack.com/product/index.jsp?productId=2062398#tabsetBasic
2. Your engine wiring manual should be reviewed. The way it works is that your lift pump comes on in two ways: a) when your glow plugs are energized with the key in the glow plug position and b) when your oil pressure comes up. Here's a link to other links that discuss how it works: http://c34.org/bbs/index.php/topic,5078.msg41829.html#msg41829