It is a new battery, but this doesn't garantee the battery is full. Now that you tried many times, the battery is possibly low. By the way, do as montrealchy said, check the connections, it's very important. Clean the connectors at the two poles of the battery, because bad connections always add to the whole resistance in the starter loop. If only a 0.01 Ohm resistance was created, a significant drop on the voltage can happen, because the start current can be over 100Amps. Sometimes, if you spray some WD40 on the suspected connections, you could notice some tiny smoke rising from thr connectores when your helper turns the key to ignition position, but be sure the battery is full! If the battery is OK, the connections are OK, there is still no sound from the starter, that means a starter problem. You need to change it. |