Why won't the car start even though it has power?
3 Answers
The reasons why a car with power won't start are: 1. Starter motor and engine malfunction; 2. Abnormal battery voltage; 3. Insufficient fuel level; 4. Faulty crankshaft position sensor; 5. Excessive throttle carbon buildup; 6. Fuel pump failure; 7. Incorrect gear selection. Solutions for a car with power that won't start are: 1. Push-start method: One person pushes from behind while another inside the car depresses the clutch and engages the gear. When reaching sufficient speed, simultaneously ignite and apply throttle, then quickly depress the clutch pedal after engine starts; 2. Jumper cable method: Find a normally functioning car, position both vehicles facing each other, open hoods and connect jumper cables with positive to positive and negative to negative terminals.
Last time I encountered this situation, it was absolutely nerve-wracking—all the dashboard lights were on, but the car just wouldn't start. First, listen for a clicking sound from the starter. If you hear it, the battery voltage might be too low to turn the starter, since a 12V battery actually needs at least 11V to start the engine. If there's no sound, check the gear position: automatic transmissions must be in P or N, and manual transmissions require the clutch to be pressed. If the steering wheel is locked, try wiggling it left and right while turning the key. If that doesn’t work, the starter might be stuck—gently tap the starter housing with a stick; I’ve personally tested this, and it works. Finally, don’t forget to check the fuel gauge—I’ve fixed dozens of cars that simply ran out of gas!
I've dealt with this issue quite a few times. First, you need to rule out problems with the circuit lock. For cars with smart keys, the key needs to be close to the start button's induction area, while for older models, it might be a locked steering wheel. Next, check the fuses; if the starter-related fuse in the engine compartment's fuse box is blown, it won't work. If that's not the issue, then consider the crankshaft position sensor. If this part is faulty, it can't detect the crankshaft speed, and the computer won't allow ignition. Finally, check the oil pressure. If the fuel pump is broken or the filter is clogged, leading to insufficient fuel pressure, the car won't start. When you try to start the car, listen carefully for a humming sound from the fuel pump under the rear seats.
