MeanBuicks
Scaring the neighbors!
- Joined
- May 24, 2001
- Messages
- 3,658
Last week, about 20 miles into my morning commute, my FP/INJ fuse blew. Replaced it and the car made it home fine. Drove it about 10 miles this weekend without incident.
This morning, just a few miles from where the fuse blew last week, it did it again.
Replaced the fuse and the car made it the last 25 miles to work.
Both times, the fuse blew while rolling along a smooth 4-lane with the cruise control on. The pump wiring is completely original with no hot-wire mod. The fuel pump is a ten-year old, 150,000-mile, Bowling Green Customs job and the injectors are Ford blue tops with about 100,000 miles on them. There is also a 3-year old Quad Air volt booster on the car.
Could the fuel pump be on its way out causing momentary current spikes? I looked briefly at the fuel injector harness for signs of chafing/shorting but saw nothing. The fact that the fuse went twice on smooth blacktop rather than over RR tracks or bumps has me doubting that it's a wire shorting on something.
Since the fuel pump is probably about used up at this point anyway, I'll probably replace it. Any other suggestions?
This morning, just a few miles from where the fuse blew last week, it did it again.

Both times, the fuse blew while rolling along a smooth 4-lane with the cruise control on. The pump wiring is completely original with no hot-wire mod. The fuel pump is a ten-year old, 150,000-mile, Bowling Green Customs job and the injectors are Ford blue tops with about 100,000 miles on them. There is also a 3-year old Quad Air volt booster on the car.
Could the fuel pump be on its way out causing momentary current spikes? I looked briefly at the fuel injector harness for signs of chafing/shorting but saw nothing. The fact that the fuse went twice on smooth blacktop rather than over RR tracks or bumps has me doubting that it's a wire shorting on something.
Since the fuel pump is probably about used up at this point anyway, I'll probably replace it. Any other suggestions?