How to Remove the Spark Plugs on a Haval F7?
4 Answers
Haval F7 spark plug removal method: After the engine has completely cooled down, unplug the high-voltage pack connector, then use a 10mm socket to remove the fixing bolts. After removing the high-voltage pack, you can see the spark plugs in the cylinder. Depending on the size of the spark plug nut, use a 14mm or 16mm socket with a long extension bar to loosen it by turning counterclockwise. Once loosened, use a magnetic rod to extract the spark plug. The Haval F7 is a compact SUV with dimensions of 4620mm in length, 1846mm in width, and 1690mm in height, with a wheelbase of 2725mm. In terms of power, the Haval F7 is equipped with two engines: a 1.5T turbocharged engine and a 2.0T turbocharged engine.
I've done the spark plug replacement on the Haval F7 several times. First, turn off the engine and wait for it to cool down—never attempt this when the engine is hot to avoid burns and damage. Disconnect the battery's negative terminal to prevent short circuits, simply loosen the connection with a 10mm wrench. There are four spark plug holes on top of the engine; start by removing the high-voltage wiring harness or ignition coil, which can be easily unclipped. Use a dedicated 16mm spark plug socket with an extension bar to turn counterclockwise, applying moderate force to avoid stripping the threads. Inspect the old spark plug for wear—replace it if there's oil contamination or electrode deformation. Before installing the new spark plug, spray compressed air to clean the hole and prevent dust from entering. Torque should be set to 15-20Nm as per factory specifications. Finally, test-start the engine; if it runs smoothly, you're done. The whole process takes about half an hour, and beginners will get the hang of it with practice.
The first time I replaced the spark plugs on my Haval F7, I followed along with a video tutorial. After turning off the engine and waiting for it to cool for half an hour, I was a bit nervous about damaging the car. First, I disconnected the negative battery terminal, and using a wrench to loosen the bolts was straightforward. The spark plugs were hidden beneath the ignition coils, and I gently unclipped the plastic fasteners. I found the right socket tool—a 16mm one—inserted it to loosen the screws without forcing them, and carefully removed the plugs to avoid dropping anything. The old plugs were checked, and their blackened color indicated they were burnt out. When installing the new spark plugs, I applied some anti-seize compound. Finally, I reconnected the ignition coils and started the engine for a test run. Feeling relieved that everything was fine, I realized that DIY isn’t too difficult as long as you have the right tools. It only took about 15 minutes to complete the job.
Removing the spark plugs from the Haval F7 is quite interesting. When I did it, I turned off the engine and let it cool for 15 minutes, then disconnected the positive and negative battery terminals for safety. Locate the spark plug holes on top of the engine, gently pull off the ignition coils without damaging the wires. A 16mm socket wrench fits perfectly, slowly turn counterclockwise to loosen the bolts. Inspect the electrodes of the old plugs—replace them with quality branded ones if they're heavily worn. The whole process is quick; keep some gloves and a vacuum handy to manage dust.
