How long drive after battery jumped?
Be sure to drive your car for about 30 minutes before stopping again so the battery can continue to charge. Otherwise, you might need another jump start.
Can jumping battery damage alternator?
Originally Answered: Can jumpstarting a car damage the alternator? Yes , if the battery jumper cables are hooked up wrong. RED{+} TO RED{+}, BLACK{-} TO BLACK{-} ANY OTHER WAY CAN DAMAGE OR DESTROY VEHICLE COMPUTERS ALSO. You should also always connect the red cables first , then the black cables.
Can a flat battery damage an ECU in a car?
” Jump-starting your car incorrectly is one of the most common ways to damage an ECU.” He advised: “Be very aware of the polarity of the jumper leads when jump-starting a vehicle with a flat battery – many ECU’s have been damaged by short-circuiting the jumper leads.
What happens when you jump start a car battery?
Reverse polarity — This might be the scenario when you car is battery down and you are trying to jump start an ECU. Always c onnect the positive leads of both batteries first, then the negative leads. This will ‘soften’ the flow of power through the earthing system and prevent power surges or spikes.
Can a jump lead be connected to the ignition?
This will ‘soften’ the flow of power through the earthing system and prevent power surges or spikes. “Don’t connect the jump leads with the key in the ignition; insert the key only after the leads have been connected. Connecting the leads with the key in the ignition may corrupt the coding between the key and the ECU.
Why did my check engine come on after a jump start?
Check engine came on after a jump start I have a 2008 Avenger R/T with 45,000 miles. About a month ago, I tried to start it in the morning (it was cold out ~ 35 degrees) and the starter just clicked, not turning the engine over. I jumped it and it started and it has started ever since.