TUNE-UP
ELECTRONIC IGNITION

INCLUDES:

  1. Replace spark plugs
  2. Check and adjust ignition timing as required.
  3. Check and adjust curb idle speed as required.
  4. Visual check of emission controlled related devises.
  5. Visually inspect plug wires.
  6. Visually inspect Distributor cap and rotor when accessible.

MAJOR TUNE-UP
ELECTRONIC IGNITION

INCLUDES:

  1. Replace spark plugs.
  2. Check and adjust ignition timing as required.
  3. Check and adjust curb idle speed as required.
  4. Visual check of emission controlled related devices.
  5. Visually inspect plug wires.
  6. Visually inspect Distributor cap and rotor when accessible.
  7. Clean fuel injectors.
  8. Clean ISC motor as required.
  9. Clean throttle body air intake.
  10. Visually inspect fuel lines and fuel rail.
  11. Pressure test fuel pump.
  12. Visually inspect fuel pump pressure regulator vacuum line and connections.
  13. Decarbonize intake manifold
  14. Decarbonize intake and exhaust valves.
  15. Decarbonize combustion chamber and pistons.
  16. Test exhaust emissions.
    17.

WHAT IS A TUNE-UP?

The term TUNE-UP was coined back when Henry Ford was working on his first prototype for the automobile. This first ignition system was very simple; one ignition coil for one spark plug, so if there were four spark plugs there would be four ignition coils. These coils needed to be adjusted to provide the same spark intensity for better idle and acceleration. As these coils worked they made a buzzing sound so when you adjusted them properly they all buzzed the same; therefore they where in tune and that’s how the term tune-up was coined. This term stuck and was associated with the replacement of spark plugs and any performance or rough idle problem that could be associated to engine operation. Once the distributor was developed the term tune-up had no meaning as to how an engine performed, but to the consumer who was use to hearing this term around a garage, automatically associated poor running quality with the need to be in tune.

Today’s automobiles do not require tune-ups. Automobile manufacturers have set forth in there recommended maintenance schedules, intervals for replacing spark plugs, PCV valves, fuel filters, etc. while recommending that other items related to engine operation be checked for proper operation and/or adjustment such as ignition timing, idle speed and other emission control related devises. When and only when the maintenance has been performed should a performance problem be addressed to correct any given set of problems. If an operating or performance problem is still present after the maintenance has been preformed and engine analysis would then be required. Therefore the term tune-up indicates the need for routine maintenance and should not be associated with poor performance. If your vehicle experiences any operating or performance problems between maintenance intervals, that specific problem should be addressed by performing an engine analysis to isolate that particular problem.

Yours truly,
Roger E. Wilson

Owner/Wilson’s Auto Repair

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