After doing some research I found that there should be 12v power to wires numbered 4 and 2 on the fuel pump relay connector, I had 12v at 2 (red wire, low current circuit) but there was nothing at 4 (yellow/brown wire, high…
Hello! Fuel pump issue. My truck has been running fine but one morning it would not start and I could not hear the fuel pump priming. a few hours later it started like normal. Drove fine everyday for around 2 weeks then one morning it would not start again, at all.
After doing some research I found that there should be 12v power to wires numbered 4 and 2 on the fuel pump relay connector, I had 12v at 2 (red wire, low current circuit) but there was nothing at 4 (yellow/brown wire, high…
1987 full size bronco power to fuel pump issue