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Q: Tune Up on 1999 Honda Accord

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What exactly is a "tune up"? And when does my car need one?
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The term "tune up" is subject to interpretation these days.

In decades past, a "tune up" was maintenance for your engine's performance. A mechanic would replace your spark plugs, ignition wires, distributor cap, rotor, points, set your timing, adjust your carburetor...etc...etc...

These days, since vehicles have evolved so much, a "Tune Up" is limited to replacing spark plugs, checking your throttle body for contamination, checking your air filter...and that's about it. You could get into plug wires and a cap and rotor if you have them still.

Finally, some folks refer to any mileage maintenance service (like a 30,000 or 45,000 mile service) as a "tune up". This would include basic maintenance like oil changes, etc...

When does your car need a tune up? It's best to refer to your owners manual and maintenance guide for the appropriate intervals of all maintenance service.
http://repairpal.com/automobile-owners-manuals-online
Go to that link to find a way to obtain a manual if you do not already have one handy.
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