I need to adjust the wiper arm on a 1997 suburban, it hits the side of the window.

REMOVE AND BRING DOWN TO BOTTOM.

You should be able to unbolt the arm and physically move it on the post. See if there is a cover over the post and a nut underneath.

has been moved or the one fitted is bigger that the one it was originally set to. take the cap off the wiper arm and undo the nut. then wiggle the wiper blade arm until it comes off. then put back on and leave an inch gap from bottom off the window to the wiper. tighten the nut up and check that it works ok without going over any of the rubbers on the winds screen. if it does re do it and lift it a bit more up. then it should be fine after driving over 30mph then.

There is a tool for that, to take the spring tension off the arm

You can still wrestle it off, by lifting the arm off windshield
& on the arms right side & under it ,is a small tab you slide
out.

Then the arm comes off & you can reinstall in a different place

It sounds as though the grounding ******** your wiper motor is not making a good ground therefore the wipers are not coming to the exact parking position. By pulling on them you pass that position and they begin to operate correctly. Thank you, Dana

I had the same problem with my 99 Silhouette...after they put in a new windshield wiper kept going over the side of the window and tearing the blades up....ended up that the wiper arm was out of adjustment ....they came back and readjusted and it was perfect

you don't have to remove the steering box to do a pitman arm. Take off the one 1/4 in. nut, or whatever size it is, take the nut off the center link, put a pitman arm puller on the steering box side, and tighten the puller until you can't go any further, and hit the adjuster w/ a hammer hard, then tighten some more and repeat

Adjustment....There is either a cap on the wiper assembly arm or a small allen nut.

with a cap,take a small screwdriver and pop off the cap, there is a locknut there,loosin it,raise the blade up higher,tightin nut.

Allen screw,loosen raise blade and tighten.

wiper arm has to be detach from pivot if u want to take cowl off,under cowl is wiper motor drive linkage that connects to pivots,now is it only wiper arm u want to change or is it some thing else?to remove wiper arm lift plastic at bottom of arm undo bolt and pry off wiper arm,on both sides if u want to take cowl off!

hi from the uk to adjust n/side wiper arm ? if you look at where the wiper arm is fitted below screen you may have a cap/covering that conseals the nut that fastens the arm to the motor wiper spindle which has a milti spline for adjusting? remove nut and pull up the arm and reposition as to prevent hitting bottom of screen ?? however if your wiper arms are the type without this nut fastening ? then same principle as above for readjusting but you will have to raise the arm verticle and carefully prise the arm off spindle there is a tool for this job and makes it easier it is a wiper arm puller you may be able to borrow or purchase? they cost approx £11 in uk but can be used for multiple other jobs ? so try 1st method you may be lucky ? when you reposition arm tap it on firmly!when you are happy with position ? good luck !