Battery good, change alternator twice in one day,runs for 5 miles then shakes and cuts off?

put jumper cables for 20 minuets ,starts up and runs a few miles,shakes and cuts off .|||First and foremost check your battery cables. Corrosion on the cables will render the battery and alternator %26quot;useless%26quot;. This is because the electricity will not be able to flow irregardless of the power source (battery or alternator). If you have corrosion on one or both cables, replace them.





If you have an older vehicle also replace the voltage regulator. They are cheap and easy to replace. Newer vehicles have the regulators built into the alternator. If you have a newer vehicle, since you already have replaced the alternator, you have therefore replaced the regulator.





Also check the wires coming off the back of the alternator. Corrosion or broken wires in this area will not allow the electrical system to charge properly.|||its your alternator. its not able to charge the battery or either its your battery as its not able to hold a charge.|||book it in with the local auto electrician probably cheaper than guessing|||Have you connect the battery wrongly? Most cars are negative earthed. If you connect the polarity wrongly, no charge take place.


If your battery is in good condition, you do not need the jumper cables. Fastest way to check condition is to turn on he head lights, replace your battery if it is dim. Too weak a battery can cause stalking of engine due to overloading the alternator!