Why won't the Odyssey start?
2 Answers
The reasons why the Odyssey won't start include: use of inferior fuel; battery depletion; starter relay sticking, etc. Use of inferior engine oil: During cold starts, factors such as cylinder pressure, RPM, and temperature make it difficult for inferior oil to ignite, preventing startup. It is recommended to use the manufacturer-recommended oil or a higher-quality full synthetic oil. Battery depletion: When the voltage during startup is lower than the minimum operating voltage of the computer, the engine computer does not function, preventing startup. In this case, the battery should be charged or replaced. Starter relay sticking: During startup, there is only a slight "click" sound with no further response, which is caused by the starter relay sticking. In this situation, simply pressing the tail of the solenoid to force it forward can connect the starter circuit, allowing the engine to start.
Last time my Odyssey wouldn't start, I thought it was a key issue. Since modern cars have anti-theft systems, if the key battery is dead, the locking system might misjudge and cause a startup failure. Then I checked if the lights would turn on and if the horn would sound. If the lights were dim or there was no sound, it indicated the battery was too low or the terminals were oxidized, which gets worse in cold weather. I often encountered this trouble in winter. Next, I looked at the dashboard warning lights to see if they were normal. If there was no response, it might be an ignition switch failure or a stuck starter. In that case, I had to try starting it a few times to listen for any unusual sounds. Don't overlook whether there's fuel in the tank—even though the low fuel light warns you, sometimes it gets ignored, or the fuel pump might be broken, preventing gasoline from reaching the engine. If it still doesn't work in the end, call for roadside assistance or go to the 4S shop. They can use a computer to diagnose the fuel injection or electronic control system—safety first.
