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Battery Voltage
If your meter is correct, at 11.9v your battery is about 30% charged. There is a certain amount of loss from parasitic discharge, things like radio memory, alarm etc, but not enough to drop a battery that low. My battery after 24 hours sits at 12.4v or so. The low voltage indicates there is...- dougmcp
- Post #5
- Forum: 1st Gen Ford Expedition Electrical
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Voltage stabilizer
The most common failure in an alternator is the bridge rectifier which converts AC to DC to charge the battery or run accessories and other than a little brush wear there is almost nothing to go wrong. The most common pulleys on Ford vehicles are the 6-groove 2-7/16, 2-3/8 and 2-1/4 inch...- dougmcp
- Post #14
- Forum: 1st Gen Ford Expedition Audio & Electronics
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Voltage stabilizer
These vehicles don't rev that high so I would doubt there would be any ill effects from a smaller pulley. My preference in cables has always been to stay away from automotive cables as they have a very low strand count and are generally poor conductors. For high amperage situations I always buy...- dougmcp
- Post #11
- Forum: 1st Gen Ford Expedition Audio & Electronics
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Voltage stabilizer
I wouldn't worry too much about the voltage drop to 13.4v, that is the normal float voltage of a 12v smart charger (2.25v per cell). Anything over 14.7v (2.45v per cell) will cause the battery to off gas. Vehicle electronics are designed to run as low as 11.5v without issues. I would install an...- dougmcp
- Post #9
- Forum: 1st Gen Ford Expedition Audio & Electronics
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Trouble getting to coil #3
I just did mine last month, the coils were a little difficult but 7 & 8 were the tough ones. I don't remember #3 being a problem and I left the fuel rails in place. You do need a good selection of 1/4" sockets, extensions and swivels to get it done.- dougmcp
- Post #5
- Forum: 1st Gen Ford Expedition Engine & Performance
