Can spark plugs that are 2mm longer than the original ones be used?

1 Answers
LaRemington
07/30/25 3:36am
Spark plugs that are 2mm longer than the original ones cannot be used because the model does not match, and the discharge gap is different, which will cause problems such as car shaking, difficulty in acceleration, and increased fuel consumption. Steps for replacing spark plugs: Open the hood, lift the plastic cover of the engine, remove the high-voltage distributor wires, and mark the position of each cylinder to avoid confusion. Use a spark plug socket to remove the spark plugs one by one. When removing them, check for any leaves, dust, etc., on the outside and make sure to clean them thoroughly. Place the new spark plug into the spark plug hole, hand-tighten it a few turns, and then use the socket to tighten it. Install the removed high-voltage distributor wires according to the ignition sequence, and then snap the cover back on. If the spark plug is damaged, it can directly cause many problems such as leakage in the vehicle's ignition system, increased fuel consumption, and reduced power. The most significant issue is difficulty in ignition, which affects the normal use of the vehicle. Severe erosion of the spark plug, such as scarring at the top, damage, or melted and eroded electrodes, indicates that the spark plug is damaged and should be replaced.
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