Tip & How-To about Ford F-350
If your brake lights are not working nut the bulbs are ok then the first thing you need to do is open your fuse box and check the fuse for the brake light.
If after doing this the fuse is ok then the problem the points towards the fault being with the actual brake light switch.
To locate the brake light switch what you need to do is get on your knees at the drivers seat side of the car then look closely at the brake pedal.
What you now need to do is follow the brake pedal to near the top where it goes through the bulk head into the engine bay.
If you have a good look at this area at the very top of the brake pedal you will see a plastic switch with either 2 or 3 wires coming from it that is atatched to the base of the frame that holds the actual brake pedal.
If after looking in this area you cant see this switch then their is a good chance its fallen off so look for a plastic switch with 2 or 3 wires coming from it that it just floating in the air by its wires, if this is how yours is the refit it to the base of the brake pedal and you should now find your brake lights are working.
If how ever the brake light switch it atatched to the base still then what you need to do is remove it from the base they are usually just clipped on and will pull off easily if its not pushed on then it may be held on by one bolt.
Once you have removed the switch what you need to do is get some one to stand at the back of the car and then you press the switch and see if the brake lights light up if they dont then this switch needs replacing.
If they do light up then check if their is any adjustmant that can be made some switches have like a screw fit that can be adjusted to allow the switch to work after is has worn down due to the age of the car.
If its not adjustable then your best option would be to replace the switch but if you have a mechanical mind then you should be able to make a way for the switch to work, dont try this if you are unsure as you can cause more harm than good.
After replacing the switch or adjusting it you should now have the brake lights working if after doing this they are still not working then what you need to do is remove two back light assembly and locate the wires running from the connector then follow these wires and you will see one that is bolted to the metal frame of the car once you have found this undo it and clean behind it where it connects with the metal of the car.
After cleaning this put it back together and you should find your brake lights are working.
If not then their is a good chance you have had a short somewhere and their has been a wire thats melted to locate this you would need to strip the car and follow the wires from the brake light switch to the fuse box then follow the wires from the fuse box to the rear lights.
Now somewhere along the way you should find a wire that has melted and needs replacing.
All you need to do is cut the wire or wires that have melted and strip the plastic cover back then fit bull connectors as these done short out as they are coated in plastic, once you have done this connect the wires and this should now have your lights working.
Please do not carry out the last job yourself if you are unsure what you are doing as you could cause your car to go up in flames over night, it only takes one wire to short and within a couple of hours the heat produced could and will cause the car to set alight, so please leave the last solution to a pro.
Posted by paul... on
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