ADJUSTMENT
Note. This article is generic in nature and all information does not apply to all vehicles. For vehicle specific information, see the appropriate articles in the ENGINE PERFORMANCE category.
ON-VEHICLE ADJUSTMENTS
The ON-VEHICLE ADJUSTMENTS article contains the type of information that was previously thought of as TUNE-UP information. Procedures for checking and adjusting valves, base ignition timing and idle speed are found in this section. Use this section in conjunction with SERVICE & ADJUSTMENT SPECIFICATIONS for performing routine maintenance. Also, if you have a driveability problem, ensure all on-vehicle adjustments are within specification before attempting further diagnosis.