2 Engine Tune-UpA modern tune-up is performed as a part of routine maintenance instead of a drive-ability problem.People used to wait until the vehicle ran poorly to do a tune up When modern vehicles run poorly, it’s usually a sensor or computer related problem and seldom will a tune-up repair the it!
3 Engine Tune-Up - Spark Plugs Some vehicle do not schedule a spark plug replacement until 100,000 miles!
4 Engine Tune-Up - Minor Tune Service and replacement items in a minor tune up include:123456
5 Engine Tune-Up - Major Tune Service and replacement items in a major tune up include:123456
6 Engine Tune-Up - Diagnostic tools Diagnostic tools used during a major tune up include:123456
7 Engine Tune-Up - Performance factors Performance factors affected by a tune up include:123456
8 Engine Tune-Up - Rough Idle Both Techs are ASE Certified Master TechniciansTechnician at the right says a tune-up will not correct a rough idle in most cases.When modern vehicles run poorly, it’s usually a sensor or computer related problem and seldom will a tune-up repair the it!Technician at the left says the rough idle is most likely due to a defective or malfunctioning sensor, actuator, or ECM.
9 Engine Tune-Up - Information It important to gather engine and vehicle performance information before performing the tune-up
10 Engine Tune-Up - Temperature It important to bring the engine up to full operating temperature prior to diagnosing an operating condition
11 Engine Tune-Up - Service Records It is important to maintain a vehicle’s service records
12 Engine Tune-Up - Safety Rules OBD II automobiles require the battery be disconnected when performing vehicle service and maintenance.
13 Engine Tune-Up - Safety Rules Four (4) safety rules to follow when performing a tune-up:1234
14 Engine Tune-Up - Procedures Vehicle inspections performed during any tune-up: