Mechanics

NO POWER TO FUEL PUMP

1987 Ford Bronco • 98,000 miles

Well I have a bronco 2 1987 2.9l v6 FI. It was running well when I was driving then it just quit. I had it towed home and relized the relay was not opening so I bought a new relay. Still nothing. Plug to relay has 4 connectors relay had 5? 3 plugs had power one at 12.5v one at 5.4v and the last at 1.46v with the ignition off. The relay still doesnt open. I have no power at all to fuel pump when key turned so it doesnt even prime. I have changed the ground wire from neg post on bettery to frame. And I have cleaned and tested ground strap from back of motor to the firewall.
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Jolinberg
July 15, 2013.



Inertia switch is bypassed underneath the hood maybe got wet?

Tiny
Jolinberg
Jul 15, 2013.
What relay is it? Fuell? Check fuel pressurewith key on engine not running see what it is. It cold be a fuel pump. And put the original relay back in if you have it.
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Hmac300
Jul 15, 2013.

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