On-Vehicle Adjustments
WARNING: This page does not describe the selected car, but rather 2388 other vehicles, including the 2003 Volvo XC90, 2003 Volvo XC70, 2003 Volvo V70, 2003 Volvo V40, and 2003 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.
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.