Chargeing system all tested and working fine but the battery light on the dash is on.Anyone have any ideas how to get it off?
2006-08-13 14:44:39 · 4 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
CHECK THE SYSTEM AGAIN LIGHT SHOULD NOT BE ON IF ITS CHARGING......ALSO CHECK BELT SEE IF ITS SLIPPING TO SEIZED TENSION PULLIE
2006-08-13 14:51:26 · answer #1 · answered by clutchconway55@sbcglobal.net 2 · 0⤊ 0⤋
You'll need to take your alternator off of the vehicle to have it tested properly. When testing it on a mini-tune, it should put out between 13.2 to about 16.8 volts. If the partsman doesn't know what he is doing, and sees it charging, but at a lower rate, he will assume it is charging fine. If it doesn't put out at least 13.2 volts, then it can't run the electrical system and keep the battery maintained at full charge. On rare occasions, the battery can be bad. When this happens the engine will sometimes race. If your truck is between a 1986, and around a 2000, then the plug on the side could be defective and shorting. It's a design flaw Ford has been aware of since it was made. Ford recommends you change that plug if you even just disconnect it. I've seen a Mercury Cougar, and an Aerostar burn to the frame because of it. If it is soft, scored, darkened, and otherwise not normal, then replace it. If you end up putting in a new alternator replace it. If your alternator tests good, and the battery is okay, then start looking at your fusable links. Older Fords have fusable link wires, while some of the newer ones have fuse links in a plastic box under the hood. If one is burnt out, you might have gotten a power surge that fried it. Just replace it and everything should go back to normal.
Special note...DO NOT, under any circumstances, disconnect the battery while the truck is running. This is 1960's technology being applied to 1990's + vehicles. You will burn out the alternator, computer, fuselinks, and wiring, because the power surge that can happen and do major damage.
2006-08-13 15:31:17 · answer #2 · answered by Thomas S 3 · 0⤊ 0⤋
Battery light means their is a problem in the charging system 9 times out of ten it's the alternator. I would bet ya it's the alternator and if it's a newer F350 the alternator is Cake to replace!
2006-08-13 14:59:51 · answer #3 · answered by grande alacrán 5 · 0⤊ 0⤋
If you are sure the system is charging it is most likely a bad diode in the alternator and the alternator must be replaced.
The alternator must also be charging the proper amount of amps not just volts. Also check the wiring going into the alternator it does get hot and burn up the plug.
2006-08-13 15:27:06 · answer #4 · answered by Dave 3 · 0⤊ 0⤋