I have the same problem with the same year S-10.4.3 Auto. I am currenty trying to figure it out. It is a intermitten problem over last 5 months.I changed fuses around in the under hood relay box.
1. How do I access relay and what terminals do I next test.
2. Where is the hot wire connection my Chilton book refers to under the hood that you can run a jumper to the battery to fire the pump?
Saturday, October 13th, 2012 AT 6:24 PM