In this video we have a look at a Ford F-150 that has an issue with the battery dying overnight. Although I did not see the problem initially, allowing the vehicle to …
Likes: 2538
Views: 35300
In this video we have a look at a Ford F-150 that has an issue with the battery dying overnight. Although I did not see the problem initially, allowing the vehicle to …
Likes: 2538
Views: 35300
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Great work Eric,very educational,infact uv really helped me a lot on my road to becoming auto tech,thanks a lot.please can you help me get wiring diagram access.I mean how can I get access to one.?
Great work Eric,very educational,infact uv really helped me a lot on my road to becoming auto tech,thanks a lot.please can you help me get wiring diagram access.I mean how can I get access to one.?
Great work Eric,very educational,infact uv really helped me a lot on my road to becoming auto tech,thanks a lot.please can you help me get wiring diagram access.I mean how can I get access to one.?
Great work Eric,very educational,infact uv really helped me a lot on my road to becoming auto tech,thanks a lot.please can you help me get wiring diagram access.I mean how can I get access to one.?
What in the shnikeys would cause an alternator to do this? I've never seen that before.
I did some testing on a 3G voltage regulator. As expected it doesn't spontaneously latch the brushes after a few hours, even with power on the A (always hot from battery) and S (from the stator winding) pins. If there is power on the S pin, the VR pulls 12 milliamps. To get the brushes latched on, you need power on the I (charge light pin). But I was able to get the regulator to come on with only 0.6v from a mostly dead D cell battery so it doesn't take much. There is 2200 ohms between the S and I pins.
Perhaps whatever blew the diode permitting current to flow from the Batt post to the S pin also created a current leakage path between the s and I pins that needed some heating to reach turn on. There wouldn't be leakage to create such heating during normal alternator operation since the design of the charge light circuit is that there isn't a voltage drop when the alternator is providing power, thus keeping the light off.
Sounds like it might be a temperature-related problem: something moving as the vehicle cools down that creates an internal short?
shame, shame on you! just sayin
Brilliant video, I learn a little more every time. Thanks.
You the man Eric! THE MAN!!!