How to Replace Spark Plugs in a Chevrolet Sail?
2 Answers
Steps to replace spark plugs in a Chevrolet Sail: 1. Remove the spark plug cap when the engine is cold; 2. Unscrew the old spark plug counterclockwise; 3. Screw in the new spark plug clockwise; 4. Reattach the spark plug cap; 5. After all spark plugs are replaced, check for any errors, start the engine for a test run. If the engine operates normally, the vehicle is ready for regular use. When removing or installing spark plugs, ensure that no dust enters the cylinder. Clean the surrounding area before removing the spark plugs. The Sail is a compact car under the Chevrolet brand, featuring a 4-door, 5-seat sedan body structure. Its dimensions are 4300mm in length, 1735mm in width, and 1502mm in height, with a wheelbase of 2500mm.
I've been driving my Chevrolet Sail for almost 5 years, and changing spark plugs is actually quite simple and saves money. Prepare tools like a spark plug socket wrench and new spark plugs matching the original factory specifications, such as NGK or ACDelco model BPR6ES, which typically cost a few dozen yuan. Open the front engine cover, locate the four ignition coils, and gently pull off the connecting wires, being careful not to damage them. Disconnect the negative battery terminal to prevent electric shock—safety first—and wait ten minutes. Use the wrench to loosen the spark plugs counterclockwise, remove them one by one, and check if the old spark plugs have excessive carbon buildup or oil stains, which can affect ignition. Before installing the new spark plugs, measure the gap to about 0.028 inches. Don't worry if you don't have the tool; new ones are usually preset from the factory. Insert them, hand-tighten first, then use the wrench to add a quarter turn to prevent gas leakage, but avoid over-tightening to protect the threads. Reconnect all the wiring, start the engine, and listen for smooth operation. If the idle is unstable, recheck everything. Doing it yourself saves over a hundred yuan each time. Replace them every 40,000 kilometers to ensure fuel efficiency and quick ignition.
