Question about 1997 GMC Sierra

2 Answers

My 1997 GMC wiper motor was replaced. The wiper drive shafts are keyed NOT just splined. How do I time them. When you turn them on, they go down first then up. Driving me crazy.

Posted by on

2 Answers

Put the wipers down near the bottom of the glass in the home position

Cycle the motor with the arm off the motor

Then put the arm on where it all goes together &
makes sense

Posted on May 24, 2011

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 104 Answers

Under the cowl at the wiper motorthere are two 10 mm nuts, make sure that motor is in park loosen screws and set wiper arms to park and tigthen screws

Posted on May 24, 2011

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Volvo windshield wipers don't work


From the wiper motor, the wiper linkage attaches to both wiper arms. If one side is working, then that indicates that your motor is working, and the linkage to at least 1 wiper arm is working.

What's left? The linkage to the other arm, and the connection of the arm to the pivot shaft assembly. Let's find out:

1. Remove the inoperative wiper arm. You will expose the shaft that the wiper arm attaches to. It will have a head on it that looks like a small peanut butter cup, with shallow ridges or splines all the way around it. This can be formed on the end of the shaft, or it can be a separate piece that is removable. If you don't see it, it may have come off with the wiper arm, so look for it to be still embedded in the wiper arm hole. Once you find it, how do those splines look? Are they stripped? If so, they may be rotating within the arm instead of rotating the arm itself.

2. Run the wipers again. Is the shaft rotating? If it is, then the arm and/or splines were the problem, and you need to replace withever component had the stripped splines, whether the arm or that p-nut butter cup splined part. (Or both, if you want to be extra safe and not have to mess with it again for a while.) If you're lucky, it'll be a separate piece that you can replace easily. If not, it'll be formed as part of the wiper linkage, and you'll have to replace the whole linkage. If it's just the arm that's stripped, replace the arm. Easy.

3. If the shaft does NOT rotate with the arm removed, then the linkage is broken, usually at the connection where the wiper shaft connects to the long arm that hooks both wiper shafts together. The bushings are often plastic, and they wear out. If it's plastic, you can get a replacement at the dealer, which will be nice, new plastic to last however long this one did. But if the linkage is metal all the way along, you'll have to do more work than with the easily replaceable plastic connection.

3b. To gain access to the linkage on most vehicles, remove both wiper arms. Next, remove the (usually) black plastic vented piece under & around the wiper shafts. This should allow access to the wiper linkage.

For those who who have neither wiper working and were hoping this would cover it, you're in luck. If neither wiper is working, here's how to test the system:

1. Turn the key to ON.
2. Turn on the wipers.
3. Listen for the sound of the wiper motor. LIsten in the cab, but also in the engine compartment as well. If you hear it but have no wiper movement, your motor is fine and the linkage is the issue.
3b. If you do not hear any motor sounds in the cab or the engine comartment, it's either the motor or the switch (I assume you've checked the fuse already).
4. Check the wiper motor: Does it have a connector for the wires, or just one wire. If it has one wire, remove that wire and check it for voltage with a multi-meter or test-light. If you have a connector, you'll need to know what wire is which. Maybe. Most of the time, the motor is grounded thru the body, so if you remove the bolts and move the motor away from the body, you can check for voltage between the motor and body.
5. If you have no voltage, then it's the switch or wiring, or possibly the resistor, if equipped. If you DO have voltage at the motor, but no motor movement, the motor is bad and must be replaced.

Apr 19, 2013 | 1996 Volvo 850

2 Answers

Nissan200sx Wipers pivot arm falls off every 2nd time I use the wipers, I've tightend the end hoping it'll be less likely to fall off, but it still does. It also seems that my wipers are out of...


Hi Orangie, It sounds to me as if there is a problem with the threads on the shaft or the nut holding the arm! Try to replace the nut with a self locking type. (Those are the type which have a plastic insert at the bottom or the top) It sounds as if the arm has been placed in the wrong position when you have reattached it on previous occasions. The wiper motor shaft has splines so when attaching the arm set it so that the self park mechanism is synced for the off to have the wiper blades down. If the shaft of the motor has been damaged you may need to replace the wiper motor. If you do, take a walk around some braekers yards and have a look for a good second hand unit. that may save you a lot of cash! Regards John

Mar 29, 2012 | 1996 Nissan 200SX

1 Answer

I have a 2000 vw jetta, when i turn on wiper blades i can hear the motor but the blades are not engaged


Wiper motor arm disengaged or slipping on drive shaft.

Wiper arms slipping on splines at pivot point of wiper arm.,,,more likely.

Wipers are held to drive splines with a 10mm nut.

Make sure wipers are in in 'parked' position buy turning on ignition and making sure wiper switch is OFF.

Turn off ignition.

Pry off the black round plastic cover off the arm where it attaches at the splines. ( Drive splines on lower windshield cowl.)

Tighten nut/s.

Jan 19, 2011 | 2000 Volkswagen Jetta TDI

1 Answer

Windshield wipers The driver's side arm is not wipping


you need to pull the plastic cap off the wiper arm base, remove the nut holding the arm to the splined shaft. then pull the arm off and turn the wipers on. if the little splined shaft is turning back and forth with the remaining wiper arm, then you have a bad wiper arm. the splines or serrations on the inside of the base get stripped and the little shaft cannot grip it to move it anymore. take your wiper arm to a local junkyard and have them find you a replacement which is not stripped. put it on in reverse order, if you have some loctite around this would be a good time to use it when you tighten the nut back down.

if the little shaft is not turning back and forth, then your wiper linkage or transmission is bad and this will most likely be a job you will want a shop to to. do not pry on the glass or use the window as a pry point to lift the arm off, it may need some gentle rocking to come loose but not prying.

Dec 08, 2010 | 2003 Pontiac Grand Am

2 Answers

Drivers wiper won't move. passenger wiper does. 2002 toyota corol


You don't have 2 motors; only 1. ...well, 1 front, 1 back, if equipped. From the wiper motor, the wiper linkage attaches to both wiper arms. If one side is working, then that indicates that your motor is working, and the linkage to at least 1 wiper arm is working.

What's left? The linkage to the other arm, and the connection of the arm to the pivot shaft assembly. Let's find out:

1. Remove the inoperative wiper arm. You will expose the shaft that the wiper arm attaches to. It will have a head on it that looks like a small peanut butter cup, with shallow ridges or splines all the way around it. This can be formed on the end of the shaft, or it can be a separate piece that is removable. If you don't see it, it may have come off with the wiper arm, so look for it to be still embedded in the wiper arm hole. Once you find it, how do those splines look? Are they stripped? If so, they may be rotating within the arm instead of rotating the arm itself.

2. Run the wipers again. Is the shaft rotating? If it is, then the arm and/or splines were the problem, and you need to replace withever component had the stripped splines, whether the arm or that p-nut butter cup splined part. (Or both, if you want to be extra safe and not have to mess with it again for a while.) If you're lucky, it'll be a separate piece that you can replace easily. If not, it'll be formed as part of the wiper linkage, and you'll have to replace the whole linkage. If it's just the arm that's stripped, replace the arm. Easy.

3. If the shaft does NOT rotate with the arm removed, then the linkage is broken, usually at the connection where the wiper shaft connects to the long arm that hooks both wiper shafts together. The bushings are often plastic, and they wear out. If it's plastic, you can get a replacement at the dealer, which will be nice, new plastic to last however long this one did. But if the linkage is metal all the way along, you'll have to do more work than with the easily replaceable plastic connection.

For those who who have neither wiper working and were hoping this would cover it, you're in luck. If neither wiper is working, here's how to test the system:

1. Turn the key to ON.
2. Turn on the wipers.
3. Listen for the sound of the wiper motor. LIsten in the cab, but also in the engine compartment as well. If you hear it but have no wiper movement, your motor is fine and the linkage is the issue.
3b. If you do not hear any motor sounds in the cab or the engine comartment, it's either the motor or the switch (I assume you've checked the fuse already).
4. Check the wiper motor: Does it have a connector for the wires, or just one wire. If it has one wire, remove that wire and check it for voltage with a multi-meter or test-light. If you have a connector, you'll need to know what wire is which. Maybe. Most of the time, the motor is grounded thru the body, so if you remove the bolts and move the motor away from the body, you can check for voltage between the motor and body.
5. If you have no voltage, then it's the switch or wiring, or possibly the resistor, if equipped. If you DO have voltage at the motor, but no motor movement, the motor is bad and must be replaced.

Jun 13, 2009 | 2002 Toyota Corolla

1 Answer

Windshield wiper


I just take the arm off and reposition the arm in the splined shaft.

Jun 10, 2009 | 1997 GMC Sierra

2 Answers

Windscreen wiper problem


The left and right wiper are on the same fuse and same switch, as well as the same wiper motor. That being said- if one works and the other doesn't, the fault lies with the wiper motor itself, or with the wiper shaft (where the arm connects to the motor.)

A wiper motor has 2 output shafts that either wiper arm connects to. At the base of your left wiper arm is a small cap. (there's one on the right side too, but let it be since it is working!) Remove this and unbolt the wiper arm from the output shaft and pull outwards to remove it.

When you examine the assembly you will notice that the wiper arm and output shaft are splined, which allows the rotational movement of the output shaft to be transferred to the wiper arm. It is common for the contact area of these splines to become damaged. This is often caused by excessive drag on the wiper arm and blade. (ie running the wipers over a dry windshield, or trying to unstick a wiper blade that is frozen to the windshield)

The 1st test is to turn on the wipers and observe the now exposed wiper shaft. Does it spin at all? If it does then problem is damaged splines on the wiper arm. (the arm is made of much softer metal than the output shaft, which makes it easier to repair this problem.)

If it turns out that the splines are damaged the 1st thing to try is to clean them up a bit. I have had luck using a very sharp awl to trace the path of the splines. A locksmiths file is very useful if you need to reshape them a bit. After cleaning up the splines reattach the wiper arm and see if it works. If not the arm will need to be replaced.

Now, if you test to see if the output shaft is turning and it is motionless while the other side wipes away, then the wiper motor and assembly needs to be replaced.

When reinstalling the wiper arm do your best to make its position match the other arm. press it onto the shaft and run the wipers a bit to make sure it is where you want it before bolting it back up.

Apr 24, 2009 | 2006 Porsche Cayenne

1 Answer

How do you remover the wiper arms?


Yes you must remove the arms, to do so, just use a standard screw driver to remove the caps covering the arm securing nuts on the arm drive shaft. The arms are secured on the shaft by splines and you should mark the arms in order to replace them in the exact position they are removed on drive spline. Lift the arms all the way up to avoid the spring tension when removing from the spline. Then you will need to remove the other panels that cover the motor and arm power shafts etc. Hint... disconnect as little as possible to accomplish the swap.

Jan 06, 2009 | 1999 GMC Suburban

2 Answers

Rear wiper replacement


Yah that spline should only move with the motor. Nice guys eh? Let me guess where you'd like to put the old one? Anyway, short of replacing the motor, they used to use, I think, a dab of solder on the very end of the spline part, that you see straight on, to keep that part from spinning free from shaft underneath, but not too sure if that's the case now or not. re-solder may work if handy at all. If not, I have seen, (due to lack of money or part availability) a small hole drilled carefully from side, right through center of spline & shaft underneath, and a spring pin, or finishing nail or even a rivet shaft, cut to proper length, tapped into hole, to cure it. I've even seen the arm put on, placed in position where it would normally be when wiper is parked in off position, and a hole drilled through arm, through spline & far enough into shaft that you can run a short self tapping screw into the hole, and problem fixed. Not the best repair, but works, and saves you changing the motor, which you'll have to do anyway if none of these ideas work. 1 suggestion, if you do try any, use a good quality, sharp drill bit, because once you start drilling the shaft under the spline, the steel is a little harder metal & harder going, but don't force it too much & break the bit either. Let me know what you decide, and how you make out.

Dec 14, 2008 | 1997 Dodge Caravan

4 Answers

Windshield wiper would not return to origi position


I had the same problem in my LW200. As the other poster indicated a new wiper motor will do the trick. This is an easy fix. Remove the wiper arms, pry up the plastic center cap and remove the nuts holding the arms down then pull them off. A soft prying nudge from underneath will help as they are splined shafts. Raise the hood, put a large deep well socket on over the splined shafts and remove the 2 large nuts holding the trim panel on. Pull up and off the long rubber which runs along the front of the trim panel, watch there is a sharp edge underneath. Now you can gently pull off the trim panel, remembering to lift it over the splined shafts. Mechanism is right there, remove 3 screws and unplug wiring. Take wiper motor off the linkage swap with a new one at advance auto, about 100 bucks, reinstall in reverse order. Note there is a stamping on the linkage telling you where the pivot arm should be for the rest or stopped position and if you ignore that your wipers will be out of whack. While you are in there you may want to change the cabin air filter as well.

Nov 18, 2008 | 2001 Saturn L-Series

Not finding what you are looking for?
1997 GMC Sierra Logo

Related Topics:

186 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

75797 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22114 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...