SPECIFICATIONS
| TORQUE SPECIFICATIONS | |||
|---|---|---|---|
| DESCRIPTION | N.m | Ft. Lbs. | In. Lbs. |
| Washer Reservoir Mounting Nuts | 8 | 70 | |
| Washer Reservoir Mounting Screw | 8 | 70 | |
| Wiper Arm Mounting Nuts | 18 | 13 | |
| Wiper Linkage Module Mounting Screws | 5.5 | 49 | |
| Wiper Motor Mounting Screws | 7.5 | 66 | |
SPECIFICATIONS
| CAUTION | Never introduce petroleum-based cleaners, solvents, or contaminants into the washer system. These products can rapidly deteriorate the rubber seals and hoses of the washer system, as well as the rubber squeegees of the wiper blades. |
| CAUTION | Never use compressed air to flush the washer system plumbing. Compressed air pressures are too great for the washer system plumbing components and will result in further system damage. Never use sharp instruments to clear a plugged washer nozzle or damage to the nozzle orifice and improper nozzle spray patterns will result. |
If the washer system is contaminated with foreign material, drain the washer reservoir by removing the washer pump/motor unit from the reservoir. Clean foreign material from the inside of the washer pump inlet filter screen and the washer reservoir using clean washer fluid, a mild detergent or a non-abrasive cleaner. Flush foreign material from the washer system plumbing by first disconnecting the washer hoses from the washer nozzles, then running the washer pump/motor to run clean washer fluid or water through the system. Plugged or restricted washer nozzles cannot be back-flushed due to the integral check valve mechanism. If the washer nozzle obstruction cannot be cleared, replace the washer nozzle.
| CAUTION | Protect the rubber squeegees of the wiper blades from any petroleum-based cleaners, solvents, or contaminants. These products can rapidly deteriorate the rubber squeegees. |
The squeegees of wiper blades exposed to the elements for a long time tend to lose their wiping effectiveness. Periodic cleaning of the squeegees is suggested to remove any deposits of salt or road film. The wiper blades, arms and windshield glass should only be cleaned using a sponge or soft cloth and windshield washer fluid, a mild detergent or a non-abrasive cleaner. If the wiper blades continue to leave streaks, smears, hazing or beading on the glass after thorough cleaning of the squeegees and the glass, the entire wiper blade assembly must be replaced.
The washer system components should be inspected periodically, not just when washer performance problems are experienced. This inspection should include the following points
- Check for ice or other foreign material in the washer reservoir. If contaminated, clean and flush the washer system. Refer to «CLEANING»(ref-646271-S14007193232014072800000) .
- Inspect the washer plumbing for pinched, leaking, deteriorated or incorrectly routed hoses and damaged or disconnected hose fittings. Replace damaged or deteriorated hoses and hose fittings. Leaking washer hoses can sometimes be repaired by cutting the hose at the leak and splicing it back together using an in-line connector fitting. Similarly, sections of deteriorated hose can be cut out and replaced by splicing in new sections of hose using in-line connector fittings. Whenever routing a washer hose or a wire harness containing a washer hose, it must be routed away from hot, sharp, or moving parts. Also, sharp bends that might pinch the washer hose must be avoided. Leaking hard plastic tubing lines MUST be replaced with a new unit.
Scheme 1
The wiper blades and wiper arms should be inspected periodically, not just when wiper performance problems are experienced. This inspection should include the following points
- Carefully inspect the wiper blades for any indications of worn or uneven edges (1), foreign material deposits (2), hardening or cracking (3), deformation or fatigue (4) or splitting (5). Inspect the wiper blade support components and the wiper arms for damage (6) or corrosion. If the wiper arms and blades are contaminated with any foreign material, clean them and the glass as required. Refer to «CLEANING»(ref-646271-S14007193232014072800000) . If a wiper blade or arm is damaged, or if corrosion is evident, replace the affected wiper arm or blade with a new unit. Do not attempt to repair a wiper arm or blade that is damaged or corroded.
- Carefully lift the wiper blade off of the glass. Note the action of the wiper arm hinge. The wiper arm should pivot freely at the hinge, but with no lateral looseness evident. If there is any binding evident in the wiper arm hinge, or if there is evident lateral play in the wiper arm hinge, replace the wiper arm. CAUTION: Do not allow the wiper arm to spring back against the glass without the wiper blade in place or the glass may be damaged.
- Once proper hinge action of the wiper arm is confirmed, check the hinge for proper spring tension. Remove the wiper blade from the wiper arm. Either place a small postal scale between the blade end of the wiper arm and the glass, or carefully lift the blade end of the arm away from the glass using a small fish scale. On vehicles with unequal wiper arm lengths, be certain that measurements on both arms are taken at a point an equal distance from their wiper arm hinge pins. Compare the scale readings between the right and left wiper arms. Replace a wiper arm if it has comparatively lower spring tension, as evidenced by a significantly lower scale reading.
- After cleaning and inspecting the wiper components and the glass, if the wiper blade still fails to clear the glass without smearing, streaking, chattering, hazing or beading, replace the wiper blade.
Scheme 2
The wiper arms are the rigid members located between the wiper pivots that protrude from the cowl plenum cover/grille panel near the base of the windshield and the wiper blades on the windshield glass. These wiper arms have a somewhat sculpted appearance that actually has a functional purpose. The sculpting is designed to reduce wind buffeting, which helps to reduce wind noise within the passenger compartment of the vehicle.
The wiper arms include an over-center hinge design that allows easy access to the windshield glass for cleaning. The wiper arm has a die cast aluminum pivot end (2) with a large, internally tapered mounting boss at one end. A molded black plastic cap snaps over the pivot end to conceal the wiper arm retaining nut and the mounting hole following wiper arm installation.
The wide end of a tapered, stamped steel channel (1) hinges on and is secured with a hinge pin to the wiper arm pivot end. One end of a stamped steel strap (3), is secured within the narrow end of the stamped steel channel. The tip of the wiper blade end of this strap is bent back under itself to form a small hook. The entire wiper arm has a satin black finish applied to all of its visible surfaces.
Concealed within the stamped steel channel is a long tension spring which is engaged with a formed wire link hooked over a metal dowel pin that passes through the underside of the pivot end. The opposite end of the spring is hooked over another metal dowel pin that passes through the underside of the steel channel.
The driver and passenger side wiper arms are not interchangeable. These arms have a letter D (Driver) or P (Passenger) cast into the surface of the pivot end to identify their proper locations. The pivot end of the driver side wiper arm also has a skirt that passes through the cowl plenum cover, while the passenger side has no skirt and seals against the top of the cowl plenum cover.
A wiper arm cannot be adjusted or repaired. If damaged or ineffective, the entire wiper arm unit must be replaced.