How to Replace the Spark Plugs on a Chevrolet Sail?
2 Answers
Replacing the spark plugs on a Chevrolet Sail involves the following steps: 1. Use a 5mm hex wrench to remove the screws on the engine cover; 2. Take off the engine cover to access the ignition coils; 3. Use a small wrench to loosen the ignition coil mounting screws; 4. Remove the spark plugs by turning them counterclockwise with a spark plug wrench; 5. Install the new spark plugs. The Chevrolet Sail is a compact sedan produced by SAIC-GM-Chevrolet, featuring a 4-door, 5-seat configuration. Its body dimensions are 4249mm in length, 1690mm in width, and 1503mm in height, with a wheelbase of 2465mm and a fuel tank capacity of 42 liters.
I've changed the spark plugs on my Chevrolet Sail multiple times myself, and it feels quite simple but requires attention to detail. First, prepare the necessary tools, such as a 16mm spark plug wrench, torque wrench, and a small gap gauge—all of which can be purchased at an auto parts store. Safety first: disconnect the negative terminal of the battery to prevent accidental electric shock or short circuits. Next, open the engine hood and locate the spark plug holes. The Sail usually has four cylinders, and each hole is covered by a plastic cap-like component—that's the ignition coil. When removing it, avoid using excessive force and keep it clean. Use the wrench to unscrew the old spark plug counterclockwise, being careful not to let dust fall into the hole. You can use a blower to clean it out. Before buying new spark plugs, confirm the correct model—the Sail commonly uses NGK or Bosch plugs with a gap typically between 0.8 to 1.0 mm. Use the gap gauge to measure and adjust accordingly. When installing, hand-tighten the new spark plug to ensure it's straight, then use the torque wrench to tighten it to around 18-20 Nm—avoid excessive force to prevent breakage. Once all are installed, reconnect the ignition coils and battery terminal. Start the engine and listen for smooth operation. Worn spark plugs can cause engine shaking and increased fuel consumption. Replacing them every 40,000 to 50,000 kilometers can improve performance and fuel efficiency. Before DIY, consult the manual or watch tutorials for added safety.
