What are the reasons why the Patrol car won't start?
4 Answers
The reasons why the Patrol car won't start are as follows: 1. Insufficient battery power or fuel: This may be caused by leaving the headlights on for a long time, resulting in a drained battery. If this happens, please call the service station for assistance, jump-start the car, or temporarily start it, and then be sure to recharge the battery at the service station. 2. Fuel system failure: Issues with the fuel supply system or ignition system. The function of the ignition system is to ignite the combustible mixture in the combustion chamber. If the ignition system fails, it can also cause the car not to start. 3. Carbon deposits: This can prevent the vehicle from starting, and it is necessary to frequently drive at high speeds to reduce carbon buildup.
I previously encountered a situation where the Patrol wouldn't start, feeling like the car had no response at all. Start by checking the simple things first. See if the dashboard lights come on - if there's no light at all, it might be a dead battery or blown fuse, which is quite common, especially in winter when low temperatures accelerate battery discharge. Use a voltmeter to test the battery voltage; if it's below 12 volts, it means it's time to recharge or replace it. Or try jump-starting with jumper cables as an emergency measure. A weak key fob battery might also trigger the anti-theft system to lock the car - try bringing it closer to the start button or replacing the battery. If there's still no response after ruling these out, the starter gear might be stuck, requiring a gentle tap, but don't go overboard - safety first. Regularly charging the battery and cleaning the terminals can prevent this issue. The Patrol is a large vehicle with significant weight, putting extra strain on the starter, making it prone to this problem.
As an experienced driver who has owned several Nissan Patrols, I believe that failure to start is mostly due to starter or fuel system issues. Listen for sounds during startup: if there's a clicking noise but the engine doesn't turn over, the starter motor might be burnt out or the drive gear could be worn. If there's complete silence, check the relevant fuses in the fuse box to see if they're blown. Another major issue is a non-functioning fuel pump, such as a broken pump circuit or a clogged filter, leading to no fuel pressure. Once, my car wouldn't start in the garage because the low fuel sensor gave a false reading, showing a full tank when it was actually empty. A simple reset is recommended: disconnect the battery's positive terminal for a few minutes and then reconnect. Cold winter weather can stiffen components, so preheating the engine before starting can help. Regularly inspect spark plugs and fuel lines, and don't wait until problems arise to fix them.
When my Patrol wouldn't start that time, the root cause was a sensor failure. The loss of signal from either the camshaft or crankshaft position sensor caused the ECU to prevent ignition startup. Inspection methods: If there's no sound during startup, check if the battery connections are loose; if there's sound but no ignition, test whether the fuel pressure is insufficient or the air filter is dirty. It might be that the spark plugs are too carbon-fouled to ignite or the ignition coils have aged. Using an OBD scanner to read fault codes can quickly locate the problem. Don't slack off on daily maintenance—clean the battery terminals and replace aging wires, as corrosion leads to poor contact and causes this issue. The Patrol's engine is large with heavy loads, making sensors prone to vibration-induced failures.
