Rear wiper blade not working

ANSWER : The problem you are describing likely stems from an intermittent electrical fault in the wiper circuit. The windshield wiper system uses a small electric motor to move the wiper arms that you see on the windshield. That electric motor is controlled through a switch, relay, fuse, and wiring. One, or more, of those electrical components has failed although it is also possible that the mechanical arms are binding (seized, if the lubricant has dried out) thus causing the electric circuit to the motor to overload. Regardless of the underlying fault, if you request a non functioning wiper diagnostic/repair, the responding certified mechanic will get this taken care of for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

ANSWER : I suggest first inspecting the wiper crank arm assembly between the wiper linkage and the motor. It may have slipped out of position. If that is secure, then yes, it sounds like you need the wiper motor and module assembly. If you need help having this checked, a qualified technician from YourMechanic can inspect your wiper system and perform the needed repair.

ANSWER : It only takes a small amount of corrosion to interrupt the flow of current. You probably just have a dirty light socket. If you get a small strip of 400 grit sandpaper and rub it on the contact surfaces in the bulb socket, that will probably get you working. If that doesn’t do the trick, you have to get a test light or a meter and go hunting for the interruption. If you would like to have a technician do this for you, you can contact Your Mechanic and have one come to your home or office and check out your turn signals for you.

ANSWER : Hi – the sudden nature of this failure would suggest a fuse or other electrical link, but you have checked the obvious. Further diagnosis is needed to determine which component in the electrical power chain has failed – switch, electrical wiring, or the wiper motor itself. I would suggest an electrical component failure by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

ANSWER : You can use a mild polish like a toothpaste that will clean the glass without scratching the glass. Use it with small circular motion to polish off the marks.

ANSWER : The problem with your tach sounds like it may be within the mechanical workings of the tachometer itself. If the gears that moves the needle around start to wear, you may have a bouncing needle or it can stop in one place. While the vehicle is hooked to a scan tool, you can watch the engine rpm on the scanner and if that reads 500 rpm as well as on the dash and the engine is definitely spinning faster, the sensor may be at fault. The power door locks and wiper problem may be separate problems as they don’t share many circuits. A loose ground connection can cause this type of problem as well as failing command switches or the relays that control these components. Consider hiring an experienced technician like one from YourMechanic who can come by for a closer look at the faulted electrical circuits to see where this bug is.

ANSWER : The rear wiper arm may be stripped out. If you remove the retainer cover and then move the wiper arm by hand to see if the shaft does not move when you move the wiper arm. Replace the wiper arm if it is stripped out or metal retainer is broke loose from arm.

ANSWER : You will have to replace the "wiper arm shaft" and/or wiper arm for the side which isn’t working. Both of these components have very small splines which interlock when the nut is tightened. A heavy snow or ice load can cause the splines to break down, or strip, rather than damage the electric motor. A certified technician from YourMechanic can replace the windshield wiper arm at your home or office.