Electrical problem
1992 Ford Aerostar 6 cyl Two Wheel Drive Automatic 130,+ miles
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I have a 92 aerostar, I am not getting the normal pump prime when turning on the ignition. I was told to replace the realy on the firewall(green) and did so with no results. I checked the inertia switch pnk/blk and green for power. nothing. Where is the fusible link upbattery(?). I found several fusible links just under the starter soleniod but have no clue which one links to the inertia switch. The van was running, once in a while it would not start due to this issue and I could pop the hood, wiggle the wires just behind the air filter and it would energize the pump. This no longer works... booo hooo. If anyone has a hint of where to look it would be appreciated.

Thanks, buddha65281