Reader Question I left the lights on in my 2000 jeep wrangler and the car wouldn’t start. I jumped the car and the engine would start as long as I kept giving it gas and kept the key turned. Once I took my foot of the gas the car died again. When it was on the lights could be turned on and the radio could be turned on. Do you think I need a new battery or a new alternator? Should I try a new battery first? Thx so much
When a battery is totally dead…it sometimes can take driving the vehicle around the block once or twice to build up enough electrical power and to let the on board computer system “re-learn” things and take control again. If the battery is 4 years old or older….replace it and see what happens, but you are probably ok if you did not have a problem prior to the lights being left on.