Question about 1994 GMC Suburban

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How do you repair or replace a wiper switch. I want to know how to disassemble the housing

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  • GMC Master
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STEERING Steering Wheel REMOVAL & INSTALLATION All Series CAUTION
When performing service around the SIR system components or wiring, the SIR system MUST be disabled. Failure to do so could result in possible air bag deployment, personal injury or unneeded SIR system repairs.

  1. Disconnect the battery ground cable.
  2. On models equipped with a drivers side air bag, perform the following procedure:
    1. Disable the Supplemental Restraint System (if equipped).
    2. On all but 1996–98 models equipped with a air bag, unfasten the screws at the rear of the steering wheel.
    3. On 1996–98 models equipped with a air bag, turn the steering wheel 90° to access the rear shroud holes to the inflator module. Insert a screwdriver in the holes and push the leaf spring to release the pin. Turn the steering wheel 180° to access the remaining shroud holes and using the screwdriver, release the remaining pins.
    4. Tilt the inflator module rearward from the top to access the wiring. Tag and unplug the lead wire from the clip on the module, the lead wire from the clip on the steering wheel and the Connector Position Assurance (CPA) and retainer from the module.
  3. If not equipped with a drivers side air bag, remove the horn pad or button cap and disconnect the horn wires. Fig. 1: Remove the horn button cap How do you repair or replace a wiper switch. I - 87988p13.jpg
    Fig. 2: Disengage the horn wiring 87988p14.jpg
    Fig. 3: If equipped, remove the How do you repair or replace a wiper switch. I - 87988p15.jpgm the steering shaft 87988p15.jpg

  4. Mark the steering wheel-to-steering shaft relationship.
  5. If equipped, remove the snapring from the steering shaft.
  6. Remove the nut from the steering shaft. WARNING
    Don't hammer on the steering shaft!
  7. Remove the steering wheel with a puller. To install:
  8. Install the wheel. The turn signal control assembly must be in the Neutral position to prevent damaging the canceling cam and control assembly. Tighten the nut to 30 ft. lbs. (40 Nm).
  9. Install the horn pad and horn contact (if equipped).
  10. If equipped with a drivers side air bag, install the inflator module as follows:
    1. Attach the lead wire to the clip on the module, the lead wire to the clip on the steering wheel and the Connector Position Assurance (CPA) and retainer to the module.
    2. On 1996–98 models, install the inflator module by pressing it firmly into the steering wheel so that all four notched pins in the leaf spring are fully engaged. Be very careful that you do not pinch any wires.
    3. On all but 1996–98 models equipped with a air bag, install the inflator module and tighten the screws to 27 inch lbs. (3 Nm).
  11. Connect the battery ground cable and enable the SIR system (ifHow do you repair or replace a wiper switch. I - 87988p16.jpg Fig. 4: Remove the nut and washer from the steering shaft 87988p16.jpg
    Fig. 5: Use a pulleHow do you repair or replace a wiper switch. I - 87988p18.jpge the steering wheel 87988p17.jpg
    Fig. 6: Remove the steering wheel 87988p18.jpg

Posted on Jul 12, 2010

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Posted on Jan 02, 2017

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1 Answer

My 2010 grand marquis wipers stopped working on high now they are coming on while in the off position. What could be wrong?


Could be the wiper switch. There are few components in the system. The wiper switch is rarely disassembled to repair, it is meant to be replaced.

The wiper motor would usually fail differently. Not shutting off (called parking) is a motor problem. But not engaging high speed is usually a switch problem. It sounds like the switch is a notch off inside and is not touching to cycle off.

There may be some you tube videos which show better details than just texting about this.

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Wiper switch loose in housing,


Go www.autozone.com repair guides.

Mar 08, 2014 | Cars & Trucks

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Winshield wiper delay intermitent module making noises


The wiper delay is in the steering column. It's a small box about 2 x 2 inches with a wiring harness attached. With the testing procedures I found below, you should be able to figure it out. I found wiper delays on eBay for around $10 to $20. Good luck.

WINDSHIELD WIPERS CHEROKEE, COMANCHE & WAGONEER 1. POWER INPUT Remove circuit breaker. Test battery side of circuit breaker. If battery voltage is not present, repair open to splice. Test across circuit breaker terminals. Tester reading should be zero (0) ohms. If not, replace circuit breaker. 2. GROUND Connector A unplugged. Test terminal G. Tester reading should be zero (0) ohms. If not, repair open to ground. 3. INTERMITTENT WIPERS Ignition switch in ACCY. Remove delay module and plug connectors together from the module. If wiper operate in LO and HI speed modes and mist (washer) is working, if wipers and mist operate, replace intermittent module. If not go to step 4. 4. WIPER/WASHER SWITCH Ignition in RUN, wiper switch position as indicated, back probe switch side of connector A for standard, connector B for intermittent: Test connector terminal E-wiper switch in LO and mist/intermittent. If battery voltage is not present, replace switch. test connector terminal C-wiper switch in HI. If battery voltage is not present, replace switch. Test connector terminal F-wiper switch to OFF. If battery voltage is present until wipers stop and then voltage drops to zero (0), system is working fine. If this does not occur, replace switch. 5. INTERMITTENT WIPERS Connector B unplug. Test across terminal A and D while rotating switch from minimum to maximum delay. If tester reading is not between 0-500 ohms, replace switch. Test across terminal A and G while rotating switch from minimum delay to maximum delay. If tester reading is between 0 and 500 ohms, replace wiper module. If not replace switch. 6. WIPER MOTOR Ignition in ACCY, wiper switch position as indicated, probe connector D. Test connector terminal 1. If resistance is no zero (0) ohms,repair open to ground. Test connector terminal 4-wiper switch in any position. If battery voltage is present, replace motor. if is not repair open from fuse panel. Test connector terminal 2-wiper switch in LO. If battery voltage is present, replace motor. If not , repair open from wiper switch. Test connector terminal 2-wiper switch in HI. If battery voltage is present, replace motor. If not , repair open from wiper switch. Test connector terminal 5-wiper switch OFF with voltmeter connected. If battery voltage is present until wipers stop and then voltage drops to zero, system is OK, replace motor. If not, repair open from wiper switch.

62217_jeep1_1.jpg


62217_jeep2_1.jpg

Found on the web. I hope this helps.
Rich Long

Jan 26, 2014 | Jeep Cars & Trucks

2 Answers

Intermittent wiper


what car, what year? gee? a suz, what?
it can only be 4 things. (all cars)
1: the wiper motor is bad. (it has contacts inside for timing.
2: the wiper shaft is stripped, nah you said both stalled.
3: the wiring is bad.
4: the combo switch for the above is bad.

DIY, with what , no tools? no meter.?
with no tools one can only GUESS,
roll dice, and replace a part.
after spending $500 on parts and the wires are good then what.
yes, buy a meter.

it could be a bad ground wire.

when you turn on most wipers, the combo switch sends
that signal( just 12v ) to the motor.
the motor is self booting, that is , it only needs the start up
and then it self provides its own power,
ive restored wiper motors, many.
then the motor runs until it his the dead spot in ITS, internal
sustain switch and the halts. if the combo switch is off.
but if the wiper fails to return, this is a bad wiper motor.
(overloaded by ice, sure)
the motor can fail 2 ways, but
id say the sustain switch is at EOL. end of life.

this is the most common design.
check your FSM for yours. the factor service manual.
or alldata dot com. sure.

Sep 25, 2013 | Suzuki Cars & Trucks

1 Answer

I have a 1994 pontiac bonneville se, there is a metal like housing unit that is a part of the steering column that causes the turn signal to click when you pull the lever. The lever plugs in the the wiper...


This sounds like that actual turn signal switch assembly. To replace it you must remove the steering wheel and disassemble the column a little. This takes some special tools and skill.

Sep 04, 2011 | 1994 Pontiac Bonneville

1 Answer

My turn lever is broken , on the insu=ide of the steering colume, i cannt find and info or part to fix it.


You have more problems than just replacing the lever. There is still a piece of the broken lever inside the wiper switch, and is nearly impossible to get out. You will need to replace both the turn lever and the wiper switch. Replacing the wiper switch is no easy task, and if you are not familiar with General Motors steering columns, it's probably best to pay a shop to do the repair. The top half of the steering column has to be disassembled, and the wiper switch harness fed up through the column.

Aug 21, 2011 | 1998 Pontiac Bonneville

1 Answer

Wipers are going even though they are not turned on


There is a parking circuit in the motor which brings the wipers back to the down "parked" position even if you have turned off the wipers. Most likely your problem lies with that circuit, not replaceable nor repairable as it is inside the wiper motor. You have to replace the whole wiper motor. However there could also be a fault in the wiper switch. The cost to replace either item, especially if you are wrong with the first guess, justifies taking it to a dealer and have them troubleshoot the problem. A good tech with a volt/ohmmeter can tell you which is bad without total disassembly.

Jun 26, 2011 | 2004 Mercury Grand Marquis

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98 chev astro van wipers work once in a while. What to do .


With wiper switch on check voltage at wiper harness, if you have voltage then reverse test light at battery and probe wiper housing if test light light up with screw driver ground wiper housing to mounting bolt, if wiper work bad ground, of test light did not light up when testing wiper motor housing for ground and you did have voltage at wiper motor replace motor, it's not going to be a fuse, if fuse was bad wiper would not come on once in a while, now if no voltage any where replace wiper switch.Good luck and hope this was very helpful, thank you for using FixYa.

Jun 02, 2010 | 1998 Chevrolet Astro

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The evaporator in my voyager is leaking refrigerant. How hard is this to fix? Any advice?


the whole instrument panel(dash)must be removed from vehicle and hvac assembly(heater box)must be disassembled to replace evaporator..a major repair that would even a experienced mechanic 6-7 hours to do..would recommend an hvac repair center to do repair..also wiper module housing should be removed to access heater hoses and a/c lines where they go inside vehicle

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2 Answers

Windshield wipers wont shut off


The problem is in the wiper motor assembly. Did you ever notice that when you switch the wipers off they always go back to the home position? This is due to a switch that keeps the wiper motor operating until the wipers are parked. In many older GM vehicles this is accomplished with a leaf type switch which opens when the wipers are in the correct position. when the dash switch is turned on this switched is bypassed keeping them on-when the wipers are turned off the motor continues to operate until this connection is broken.

Inside the wiper motor housing there is a nylon gear that drives a cam that cycles the leaf switch-most likely the gear has become damaged so it no longer drives the leaf switch allowing the switch to remain closed. A cheap fix is to disassemble the motor unit and piece of tape between the contacts. Although the wiper will not park properly they once again can be controlled by the dashboard switch.

In later vehicles the wiper position is located with an electronic sensor with a small PB board - the repair of this gizmo is beyond the scope of most shade tree mecahnics - so the solution is to replace the entire wiper motor assembly - unfortuneatly.

Jan 05, 2009 | 1997 Chevrolet Venture

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