- Joined
- Jun 2, 2012
- Messages
- 25,363
- Reaction score
- 8,372
- Points
- 113
- Location
- canada
- Vehicle Year
- 1994
- Make / Model
- Ford
- Transmission
- Manual
Electrically this doesn't make sense, lolWell the alternator didn’t fix the issue. Still having to jump the Bronco to start it. Something is killing the battery. Immediate restart after shut off works, if I wait 10 seconds an try to start I got nothing.
Especially if you are connecting jumper cables to the battery cables on the battery
The vehicle's battery cables are connect on their inside surface to the battery posts
If you connect jumper cables to the outside surface of those same cables and vehicle starts that would mean the cables themselves are OK, but the inner surface is not making good contact with the vehicle's battery
OR
The starter motor is bad, and needs TWICE the AMPS(two batteries) to crank engine over
Electricity(AC or DC) needs a "circle", a circuit, in order to work
In the case of vehicles that means a connection to positive and negative electrical terminals
And the circle needs an EQUAL pathway for both + and -
If the positive battery wire can pass 70amps, but the negative wire can only pass 20amps, then that circuit(circle) is limited to 20amps
In the case of starter motors that need 50-70amps instantly to crank/turn the engine the positive AND negative cable's connections to the battery AND the vehicle matter a lot, both need to pass, the up to, 70amps required
That's why the jumper cable thing has me puzzled
And there is no drain a vehicle can have that would drain a good battery in 10seconds, or 10 min, to prevent a restart
There would be a smoke show, lol, if that was the case
And if at rest battery voltage was 12.4v after 19 hours then its a good battery
Last edited: