Why would a car not start with your key but start easily with a jump start?
Your car could have a dead battery. Your key opens your electical system only while a jump allows you use the other car's electical system (good battery and all). It could also be a bad starter. Autozone can check your starter, battery, and alternator for free. that happend on our 94 ford explorer and it turned out to be a bad wire connecting to the starter!
No It will not hurt a car to jump start with a bad Alternator. Only if you put the cables on backwards. Jeff 25 years Automotive Tech It has been my experience that although you can jump-start a car with a bad alternator and drive it, the car will eventually die while you are driving (usually in a spot where there is no one around to help you jump start it again). I recommend a…
Considering that this is in the car starting problems category, I am assuming you mean a Jump Box to start a car. In this case, a jump box is a device with a battery and attached cables that can be used to jump start your car. This is used when a car battery has died. Another alternative is to use jumper cables with another car.
You should never drive a car around for long after jump starting a dead battery. This puts an enormous strain on the alternator. Alternators are designed to keep a good battery charged, not to charge a dead battery. You can easily burn out a diode in the alternator. Jump start the engine and drive it somewhere and connect a battery charger to the battery and charge it fully.
How do you open the the trunk of a 2005 Lincoln LX if the battery is dead which is located inside the trunk?
You can do it if there is some power left in the bike's battery. You do not need enough power to turn the starter but there must be enough to excite the fields of the alternator and to power the fuel pump if it is an injected bike. Let me forewarn you though that jump starting a bike by towing the bike and rider with a car is very dangerous. The biker would be far…
If you can jump start the car then the battery is not fine. Remove the battery cables and thoroughly clean them. If it still will not start check the voltage at the battery with the engine off. You should get 12.6 volts if the battery is fully charged. 12.4 it is 75%, 12.2 it is 50%, and 12.0 it is 25% charged. I would bet your battery is defective.