Question about 1990 Ford F150

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1992 ford f150 Truck shut down at 60mph and now fuel pumps wont

Shut off. smoke came from under dash and you could smell plastic burning.. We know its an electrical issue but dont know where to start looking. She starts but wont stay running and when she does run she runs rough and blows raw fuel. she has never done this and my husband has traces all the wiring but cant find anything burned or charred.We dont have the money to take her in. PLEASE if anyone can help us out it would be GREATLY appreciated.
Thanks in advance!!!

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Where does the fuel come from that leaks out when running? If you have dual fuel tanks and one tank is overflowing you will need to check the fuel tank switch in the dash. Ford had a problem with these that caused the fuel pump from one tank to pump fuel to the other tank and cause it to overflow. If this is the case the tank switch is probably defective.
They can get very hot and melt the wires into the back of the switch. Check the switch first.

Posted on Feb 18, 2009


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Posted on Jan 02, 2017


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What would cause no power to the fuel pump?

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