Fuel pump relay shutting off right after key on.
#1
Fuel pump relay shutting off right after key on.
Hi all,
I am trying to finish wiring up a 2.9 L I put in '84 BII. The 2.9 is from a '88 BII.
When I turn on the ignition I hear the ECM relay, and the fuel pump relay. But... the fuel pump relay shuts off after about 2-3 seconds. Any ideas on this? I thought it should stay on.
I just installed the relay as well. It seems the old one blew up, along with my fuel pumps. I get good continuity and power to the harness. Just get that odd behavior. I will be replacing the fuel pumps both on the rail and in the tank in a few days when I have the money. Any insight on this would be much appreciated. Thanks.
Hawkeye
I am trying to finish wiring up a 2.9 L I put in '84 BII. The 2.9 is from a '88 BII.
When I turn on the ignition I hear the ECM relay, and the fuel pump relay. But... the fuel pump relay shuts off after about 2-3 seconds. Any ideas on this? I thought it should stay on.
I just installed the relay as well. It seems the old one blew up, along with my fuel pumps. I get good continuity and power to the harness. Just get that odd behavior. I will be replacing the fuel pumps both on the rail and in the tank in a few days when I have the money. Any insight on this would be much appreciated. Thanks.
Hawkeye
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pumps
Good idea. I have put 12 volts to the frame rail pump and it's toast. I don't hear anything from the fuel tank either. I used to hear both running during tests some time ago. ( I don't get to work on my truck everyday due to busy schedule).
Now since I am tracing the troubles I got curious about the actions of the fuel pump relay. You fellas helped me out. I got both my pumps yesterday (New), pretty pricey, I hope they last a long time. I will be trying to get both installed this weekend and then I'll see where I'm at. Once again Thanks for your insight.
Hawkeye
Now since I am tracing the troubles I got curious about the actions of the fuel pump relay. You fellas helped me out. I got both my pumps yesterday (New), pretty pricey, I hope they last a long time. I will be trying to get both installed this weekend and then I'll see where I'm at. Once again Thanks for your insight.
Hawkeye