Question about 1991 Ford Festiva

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1990 ford festiva no power to fuel pump. replaced relays , fuel pump, checked safety shutoff. nothing .. ran hot wire to fuel pump and pump worked but car still not trying to start. got spark. now what

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  • Ford Master
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The pump should have a fuse in the fuse block. You need to check for power in the fuse block and you need to check power to the pump relay.

Sometimes there is a fusible link to the Relay. If you check the connector terminals for power where the Relay plugs in, you can determine if the fusible link has blown. You could have already replaced the bad parts and now need to restore power to the Relay.

Posted on Oct 10, 2010

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Posted on Jan 02, 2017

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I have found the relay at my local auto parts recycling center, after many hours of troubleshooting, I also found the PCM to be faulty. A replacement computer is on order. This model has been modified by prior owner removing the inertia safety switch. A replacement is also being sought. A similar problem occurs when the ECT (engine coolant temperature) sensor is destroyed.
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If you find the thermo fan starting within seconds od rotating the engine, the problem is the main relay earth, PCM (needs replacement) and/or the fufel pump relay. This is known as LIMPO HOME MODE.

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