Question about 2007 Ford F-150

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I have a 2007 f150 with electrical issues. Start engine, 30 to 40 seconds all gages go down to 0,elect, windows don't work heater blower moter shuts off.

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It's possible that the connection at the power distribution box is corroded this is the fuse box under the hood you will see a cable from the positive battery cable attached there. disconnect the battery on both sides then the box connection clean them with alcohol/brake parts cleaner and a rag if white acid is present or greenish blue oxidation lightly brush it away and use a very light sand paper or an emery board that women use for there nails DO NOT USE A WIRE BRUSH ON THE TERMINALS THIS WILL MAKE THEM SMALLER AND THE BATTERY TERMINALS WILL BE LOOSE FITTING THIS WILL CREATE BATTERY DISCONNECTION ISSUES YOU CAN USE AN OLD TOOTHBRUSH//// AFTER just lightly use the sand paper to make the surface shiny then if you have carbon conductive grease apply it to all connections /////the box cable/////the battery terminals and reconnect all connections and while your at it clean the cable connections to the starter the same way and alternator cable connection once done your problem should be solved but if not you have now eliminated power from under the hood that can cause this and this is the most common one DO NOT USE DIELECTRIC GREASE OR ANY OTHER GREASE THAT IS NOT CONDUCTIVE//// If your problem is still present post back and we will go deeper into the wiring system but for now what was described above should be what's needed remember///NO WIRE BRUSH ON THE BATTERY POST//TERMINALS/// ONLY CARBON CONDUCTIVE GREASE OR BATTERY GREASE THE FIRST ONE IS THE BEST OVERALL AND CAN BE BOUGHT AT AN ELECTRONIS STORE///// AND ONLY LIGHT SAND PAPER 1000 GRIT AND VERY LIGHTLY SHINE ALL METAL SURFACES AND GREASE HAVE FUN AND GOOD LUCK STEPHEN

Posted on Dec 03, 2016


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I have a 2007 f150 with electrical issues. Start engine, 30 to 40 seconds all gages go down to 0,elect, windows don't work heater blower moter shuts off, radio and 4 wheel drive no work

Could be a lose connection on a ground circuit or a SJB - smart junction box problem . A SJB is a electronic control module that ford use's to control lighting and the windows and the door locks and other thing's . Some time's these problems set DTC'S - diagnostic trouble codes in the computer . These DTC'S help a tech. diagnose and pin point a problem . This could simple be a lose connection like i said above or a little more invloved . You could look at a wiring diagram for all thing's you have listed an see if they have anything in common . And check it with voltage drop testing . There are videos on youtube on basic automotive electrical testing , voltage drop testing . etc... You can find free wiring diagrams at . Doing some of this testing would in all likelyhood need parts of your vehicle taken apart . Instrument panel for starters .... Because behide the I/P are a lot of ground points for electrical circuit .

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