However, based on the limited information provided, here are a few possible reasons why pulling the positive battery cable might enable a 1986 Nissan Stanza to start:
1. Faulty Ignition Switch: If the ignition switch is faulty, it may not be providing power to the starter solenoid. Pulling the positive battery cable and reconnecting it can temporarily bypass the ignition switch and provide power directly to the starter, allowing the engine to crank.
2. Loose or Corroded Battery Terminals: Loose or corroded battery terminals can prevent proper electrical connections and cause starting issues. Pulling the battery cable and reattaching it can temporarily clean the terminals and establish a better connection, allowing the engine to start.
3. Starter Solenoid Malfunction: A faulty starter solenoid may not be engaging the starter motor properly. Pulling and reconnecting the battery cable can sometimes jar or dislodge the solenoid, allowing it to engage and start the engine.
It's important to note that these are just potential reasons based on the limited information provided. The actual cause of the starting issue may be different and could involve other components such as the starter motor, wiring, relays, or other electrical issues.
It is strongly recommended to have a qualified mechanic diagnose and repair the starting problem to ensure the safety and reliability of the vehicle.
