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Durango-nology
A compendium of information about the Dodge Durango. |
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Body Exterior And Systems
Wiper and Washer Systems A semi-recessed windshield wiper system is integrated with the hood, plenum and windshield environment as on Dakota. Wiper operation is also the same as Dakota: two speeds with variable-delay intermittent operation on the lower speed. Six delay intervals from 0.5 to 18 seconds are provided. When vehicle speed is below 10 mph (6 km/h), normal wiper delay time is doubled. Adjusting the wiper delay to a shorter interval results in an immediate wipe. Low-profile arms and blades provide a neat appearance. The motor, linkage and wiper arms are attached to a tubular frame mounted in the cowl plenum chamber through four 1.38-inch (35-mm) rubber isolators to minimize noise transmission to the cab. Quietness is enhanced by placing the cycling relay that provides intermittent operation in the engine compartment. Noise level is equal to best-in-class. Modular assembly assures accurate positioning of the blades on the windshield for smooth, streak-free operation. Parallel-action blades provide a wiped area that meets passenger car safety standards, there being no standard for trucks. Blades have the latest aerodynamic construction to assure effective wiping at highway speeds. The back of each blade is cut away to reduce weight and let air pass through. In addition, the back has an airfoil shape that provides a downward force to counteract wind lift. This construction is more effective and has better appearance than earlier aerodynamic blade systems. Bolt-on wiper arms assure accurate alignment of the blades to the glass. Alignment marks molded into the windshield interliner at the base of glass facilitate precise installation on every truck. The arms and linkage are designed to prevent packed snow buildup at the base of the windshield from damaging the mechanism. Over-center wiper arm hinges allow the blades to stand off the glass for easy snow removal or cleaning of both glass and blades. |
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Dual, fluidic washer nozzles mounted on the cowl screen give best-in-class glass coverage for rapid cleaning with minimal fluid usage. Fluidic nozzles provide a spray of fine droplets that oscillates rapidly across the wiped area. Nozzle spray patterns are fine-tuned for even coverage and appropriate droplet size. The washer fluid reservoir capacity is 0.8 gallon (3.0 liters). Rear Window Wiper and Washer System The rear window wiper motor is expected to provide the quietest operation in its class - virtually undetectable by even third-seat passengers with the vehicle in motion. Quiet operation results from fine-tuning of the rubber-isolated three-point mounting system. Two mounts attach to the liftgate inner panel through the same extra-soft, oversize grommets used to support the windshield wiper mechanism. The third mount gets sandwiched between the nose of the motor and the outer panel where the output shaft exits. This stabilizes the motor for accurate alignment of the blade to the glass, minimizing the potential for blade chatter. The motor swings a 15.75-inch (400-mm) blade through a 125° arc, clearing a large portion of the glass. Blade and arm have the same construction as those on the windshield wipers for a consistent appearance. The rear wiper operates only in intermittent mode, controlled by an electronic timer integral with the motor. The rear washer uses a single fluidic nozzle that is placed 0.4 inch (10 mm) aft of the glass. This subtle offset allows a wider spray pattern than flush-mounted nozzles. This helps ensure that washer fluid is projected onto the glass, not over it, for rapid, effective cleaning. A capacious 0.8-gallon (3.0-liter) rear washer bottle (the same capacity as the front bottle) provides long intervals between refills. It is filled through a covered funnel that snaps into the liftgate drain channel outboard of the weatherstrip.
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