Before the emergence of electronic systems in cars, a tune-up would normally include repairs of the ignition, engine controls, and fuel injection, which are nowadays undertaken by electronic adjustments.
A modern car tune-up should include processes of preventive maintenance, analysis of performance and minor adjustments, which might be causing driving problems. If conducted properly, a car tune-up usually helps in making the drive smoother, increasing mileage, and preventing any minor problems and symptoms such as poor fuel economy, low power, stalling engine, and ignition problems of the vehicle from getting serious.
Complete Car Tune-Up Checklist
The tune-up of a car can be broadly classified into minor, moderate, and major types, which can include one or more of the following procedures.
Checking the operation of safety accessories such as lights, wipers, tires, indicators, horn, etc.
Replacing the spark plugs and rotors.
Checking all belts and hoses for wear and tear.
Checking, adjusting, or replacing the distribution cap and ignition timing mechanism of the engine.
Checking the levels of engine oil, coolant, brake fluid, and transmission and power steering fluid.
Checking the wires and performance of the ignition unit, and replacing it if needed.