Thought wiper arm spring must be weak but swapped it with passenger side wiper arm and it too exhibited the same problem. Driver's side wiper arm still not pressing blade hard enough against the windshield even though wiper arm I pulled off the driver's side now has plenty of pressure against the glass on the passenger side. Tried swapping in the entire w/s wiper transmission linkage out of a boneyard, but it did the same thing as the original wiper trans linkage did. Finally had enough and stuffed a small block of wood between the driver's side bottom of the molded plastic linkage frame enough to lift the whole thing enough to put a moderate amount of pressure behind the wiper blade so it will at least wipe the glass adequately at city street speeds but with winter weather coming I was hoping to fix it right but don't know what I need to do to get it right. I appreciate whatever help you can give me.
Hello Steve,
From your post, "Finally had enough and stuffed a small block of wood between the driver's side bottom of the molded plastic linkage frame enough to lift the whole thing enough to put a moderate amount of pressure behind the wiper blade..", it sounds like this box is warped or somehow out of alignment. Is it possible for you to buy this box from a wrecking yard? Has you car ever been in a collision? If so the frame may have so un-repaired buckling resulting in the misalignment.
SOURCE: auto maintanence
Yes the spring in the arm is weak, replace the arm and your problem will be solved.
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