Question about Ford F-150

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I have a 91 F150 5.9L with a starting problem...Its not cranking, Replaced starter, starter solenoid, checked battery wires and battery. When i turn the key on i get about 11v then i go to start it and it drops to like 2 volts??? Used a charger on 50 amp n the solenoid sounds like a machine gun but no starting. Overnight my battery all of a sudden started dying, i replaced it and the same thing happened again ANy body have a clue where to look next

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I had a similar problem on an old bronco that I had. I don't know which one fixed it but I replaced the battery leads and made sure the ground was connected well, and replaced the computer( or brain). You should be able to find the brain in a junkyard and it SHOULD be mounted on the drivers side inner fender(under the hood). Hope this helps.

Posted on Sep 09, 2010

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99 mustang won't start it only do 1 click. If it


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Try to determine if click is from solenoid on the starter or starter relay. Turn the headlights on and watch them while someone turns the key to start. If they get dim, probably the starter-have it tested-even new ones are sometimes bad. If lights don't dim, you will need to check the start circuit. Check for power on the small wire to starter solenoid when key is held in start. If no power there, work back towards the ignition switch. Check the neutral safety switch-should have power in and power out when key held in crank. The ignition switch will have a start wire out of the switch going to the neutral safety switch. It should have power with key in start, the only time the start wire will have power.
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But those are ignition parts. If the car won't crank, there is a problem between the battery, ignition switch, and the starter.
Try this, Darren: With key on, does your dash light up, gauges working and check engine light on? Turn key to start. Do you hear a click form the area of the starter? If you hear the starter solenoid click, and you know the battery is charged up good, then likely the starter is out, and needs to be taken off for testing or replacement. But that is assuming that the battery cables and their.connections are good and allowing full battery power to the starter.
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