Why does the car still fail to start after jump-starting?
3 Answers
If the car still fails to start after jump-starting, the main reasons could be: 1. First, verify whether the voltage of the connected battery is correct. 2. Additionally, check if the jump-start cables are thick enough and if the connections are secure. If everything appears normal, there might be issues with other components of the vehicle. It is recommended that the owner tow the car to a 4S shop for inspection and repair. Extended information: During regular use of the car, owners should periodically inspect and maintain the battery. Avoid using electrical devices in the car for extended periods after turning off the engine. Repeatedly starting the vehicle in quick succession can lead to multiple discharges and damage to the battery. Ensure that the interval between successive start attempts is no less than 15 seconds.
I've encountered this situation before. It's really frustrating when the car still won't start after a jump start. Besides battery issues, there are several other things to check: First, it might be a faulty starter motor. If you hear a 'click-click-click' sound but the engine won't turn over, that's probably the problem. Second, check if the alternator fuse is blown – look for it in the fuse box. Third, the negative ground connection might not be properly attached; it's best to clamp the jumper cables directly onto the engine block. Also, check if the fuel pump is working – listen for a humming sound when you turn the key to ON position. Finally, if the anti-theft system is locked, the car won't start either, and you'll need professional diagnostic equipment to reset it.
Still can't start after jump-starting? Let me think, my old car had this issue before. That time the battery was completely dead, jump-starting only lit up the dashboard, but everything went black when turning the key. Later I learned the battery plates were sulfated, and a new battery was mandatory. Another time the jumper cables were too thin, and the current wasn't enough to crank the starter. Also, don't rush to start continuously, if the engine is flooded and the spark plugs are soaked, it's useless. Nowadays, mechanics use diagnostic scanners to check trouble codes, which is much better than our blind guesses. Finally, a reminder: if the starter is broken, there will be a metal grinding noise, a sound I'll remember for the rest of my life.
