windshield or wiper problem?

Question

i've just recently installed 1 pair of brand new bosch wiper, but my wiper still jumping occasionally though its raining.. i usually spray the windshield w/ washer fluids mixed w/ washer solution.and eventually the wiper goes smooth..but after sometimes its gets jumping again..

what should i do?

please advice..thanks

Answer 1

Before anything, The obvious is often overlooked. Try cleaning the windshield with a clean rag and a good window cleaner. Also,on a clean windshield with wiper baldes in good order, jumping blades can simply be caused by the wipers being set on too high a speed/not enough water on the glass for the amount of wiping being done.

Your wiper blades may als be jumping due to one of, or a mix of several different mechanical reasons. When installing new wiper blades, the rubber surface that contacts the glass should be wiped down with an alcohol solution on a clean (grease/oil/moisture free) rag before use, often small disposable alcohol wipes will accompany new wipers inside the packaging.

Wiper blades should be changed out at least once a year, more often when subjected to harsher climates, and can be replaced in several different ways. It is important to replace wiper blades and wiper refills with the manufacturer recomended length and style. Using the wrong length or style can cause incorrect and/or unbalanced pressure along the wiper/glass contact area. Many times wiper refills are simply not installed correctly. If you used a refill, check to see that the rubber on the actual squeegee portion of the blade is held securely but not too tightly to allow for the contraction and expansion in the metal or plastic casing of the wiper blade as it moves along the contour of your windshield.

Another problem that can cause jumping or chattering is in the arm of the blade. The arm is the part that links the wiper blade and the vehicle together, usually to somewhere near the base of your windshield. The arm could be bent or possibly loose at the mounting point at it's base. If loose, It's a pretty easy fix usually requiring only that you carefully pry off the protective cap covering the nut that retains the arm on a splined rod protruding near the base of the windshield. Before tightening the nut, straighten the arm or bend back fully if its normal range of motion is capable. The splined rod will sheer or lose it's thread if tightened too hard so be reasonable, then snap the protective cap back on and replace the blade to it's normal position on the glass.

There is a spring inside the arm that controlls the amount of pressure the blade exerts on the glass. This spring can wear out due to a variety of reasons, usually age or improper handling. The arm is replaceable but not generally a part that most auto parts stores will have in stock due to the the sheer number of different styles. If they need to be replaced, you would need to have all the relevant information regarding year, make, model and sometimes different options your vehicle may have before you order them.

A little longwinded, but I hope that helps.

Answer 2

The problem may be your tension arms on your wipers. Your wipers are mounted to springs so that pressure can be applied evenly as the wiper swipes across the changing surface of your windshield. If your springs or pivot points are corroded, they may not be compensating for the curve of the windshield, and the pressure might be too great in one spot. Check your wiper arms for corrosion, and work them back and forth a few times to loosen them up. You can use some lube on them, but that can cause lots of problems if it gets on your windshield.

Answer 3

Weak springs in the wiper arms may be the problem. I dirty windshield will also do the same thing, but after a few swipes of the blades, it should fix itself.

good luck.

Answer 4

wipe you whole windshield down with 000 steel wool that you can buy at the hardware store and then wax your windshield with regular car wax and see if that fixes your problem.

Answer 5

tension may be too tight
take them off again and try to take some of the pressure off the arms.

Answer 6

try rainx