Whether you’re looking for better lap times or more miles from each gallon, every engine is happiest when operating at peak efficiency. While today’s new cars are usually pretty well maxed-out from the factory, things start to change after thousands of miles have been covered: parts age and wear, dirt gums up the works, and equipment falls out of spec.
Then there’s always the case of the previous owner. While usually well-meaning—or just plain cheap—the previous owner is a dreaded creature who tries to make improvements, but usually just messes things up thanks to selecting improper parts, skipping steps or failing to grasp proper tuning techniques. Sometimes, a lot of the tuning process involves just undoing past mistakes.
Returning an engine to its proper glory isn’t a hard task, and the rewards will usually outweigh the expense. Here are 10 easy steps to a great tune-up.
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