1997 Mercury Grand Marquis Owner Guide 1st Printing - Page 93
1997 Mercury Grand Marquis Manual
Page 93 highlights
The variable interval wiper on the turn signal lever To set the interval wipers, turn the knob at the end of the turn signal lever toward or away from you until the wipers are going at the desired interval. Windshield Washer To clean the windshield, push in the end of the wiper knob. For a constant spray, keep the knob pushed in. After you release the knob, the wipers operate for two to three cycles before turning off (if the wipers were OFF) or returning to HI, LO, or the interval setting selected. If the washer does not work, check the washer fluid level and fill it if it is low. See the Maintenance and Care chapter. If there is enough fluid, consult your nearest Ford or Lincoln-Mercury dealer. Do not try to clean the windshield when the washer fluid container is empty or activate the washers at any time for more than 15 seconds continuously. This could damage the washer pump system. 92