Jummp starting a car6/10/2023 ![]() Lately I’ve been reading that warming up the car is bad for your engine because excess gas goes into the intake valves. ![]() Then connect the positive or red clamp to the positive battery post and the negative. I have been starting my car every morning with the remote start and letting my car run for about 10 minutes, then drive my car to where I have to go. First turn off all lights and electronic accessories in the dead vehicle. I had written you in the past and you told me to run the engine till it is completely warmed up. Most vehicle owners will encounter a dead battery at some point, which means you should know how to jump start a car. Q: I just drive a short distance every day. Yes, it is helpful to rev the engine and hold it around 1,200 rpm. If you still have to jump start your battery after turning it off once more, it may be that your alternator is on the fritz. Increasing the engine speed on the donor vehicle makes sure enough amperage (current) flows to the weak battery. Using a garden hose for an analogy, voltage is the water pressure while amperage is how much water leaves the nozzle. After the car with the working battery has been running for a few minutes, start the car with the dead battery. Voltage pushes the electricity through the wires while amperage is a measure of how much electricity is flowing. With the jumper cables firmly attached, start the car with the working battery and let it run for a few minutes. In modern vehicles with alternators I know increased rpm doesn’t equal higher voltage, but does it provide higher amperage? Does it do anything? Is it at all useful to rev the engine of the vehicle providing the jump?Ī: The voltage output is actually regulated to a maximum of fewer than 15 volts. Take the key out of the ignition in the car with the dead. When jump-starting a vehicle, I know that decades ago it used to be useful to run the rpm up in the vehicle providing the jump, thereby providing a higher voltage from the generator. Jumpstarting Your Car: What Are the Steps Line up the front of your vehicles and open both hoods. Q: Recently in helping my elderly father-in-law start his Lincoln, I came upon a quandary.
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