Hi my son found this 1988 Jeep in excellent condition that needed a new wiring assembly in the steering column for the Wiper Blades- They don't work properly- can you give me a rough diagram or send me in the right direction- Tks Gramma
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This can be found in the Hanes repair manual that you can get at any auto parts store, Auto Zone, step by step with photos. Not a hard job but you will new a steering wheel puller to get the lock ring out and the wheel off.
Yes, your core is leaking. The core is in the box under the dash. The procedure is quite involved. I will attempt to paste from autozone.com below:
Before servicing the vehicle, please familiarize yourself with safety procedures.
Disconnect and remove the negative battery.
After disconnecting the negative battery cable, wait 2 minutes for the driver-s/passenger-s air bag system capacitor to discharge before attempting to do any work around the steering column or instrument.
Drain the cooling system into a clean container for reuse.
Remove the instrument panel by performing the following procedure:
Turn the steering wheel in the straight-ahead position.
Remove the A-pillar trim from both sides of the vehicle.
Remove the top cover from the instrument panel.
Near the windshield line, remove the 4 instrument panel-to-chassis nuts.
Remove the scuff plates from both front door sills.
Remove the trim panels from both sides of the inner cowl.
Remove the floor console.
Remove the fuse cover from the junction box.
Remove the instrument panel cluster bezel.
Remove the steering column opening cover from the instrument panel.
Remove the steering column bracket from the instrument panel column support bracket.
Remove the lower steering column shroud cover-to-multifunction switch screw; then, unsnap both halves of the shroud cover from the steering column.
Disconnect the instrument panel wiring harness connectors from the following steering column components: Both lower clock spring connector receptaclesLeft multifunction switch receptacleRight multifunction switch receptacleBoth ignition switch receptaclesShifter interlock solenoid receptacleSentry Key Immobilizer Module (SKIM) receptacle, if equipped
Turn the ignition switch to ON position; then, release and remove the shifter interlock cable connector from the ignition lock housing receptacle.
Turn the ignition switch to OFF position; this will prevent the steering wheel from turning and the loss of the clock spring centering following steering column removal.
Remove the 4 steering column-to-instrument panel steering column bracket nuts.
Remove the steering column from the instrument panel.
Disconnect both side body wiring harness bulkhead connectors, the Ignition Off Draw (IOD) wiring harness connector and the fused wiring harness connector from the junction block connector receptacles.
Disconnect the instrument panel wiring harness-to-floor console component connectors: Air bag control module connector receptacleParking brake switch terminalTransmission shifter connector receptacle
Remove the 2 instrument panel wiring harness-to-floor console ground terminals located behind the air bag control module.
Disconnect the instrument panel wiring harness-to-floor console retainers.
Remove the instrument panel-to-floor console bracket screws and the bracket.
Remove the driver-s side floor duct-to-heater/air conditioning housing assembly screw and remove the duct.
If equipped with a manual heating-air conditioning system, disconnect the vacuum harness connector from behind the driver-s side floor duct.
Remove the instrument panel steering column support bracket-to-driver-s side of the heater/air conditioning housing assembly screw
Remove the instrument panel steering column support bracket-to-intermediate bracket screw.
Remove the instrument panel steering column support bracket-to-driver-s side cowl plenum panel nut.
Remove the 2 instrument panel-to-driver-s side cowl side inner panel screws.
Remove the instrument panel end cap.
Remove the lower right center bezel from the instrument panel.
At the passenger-s side cowl side inner panel, disconnect the instrument panel wiring harness bulkhead connector from the lower cavity of the inline connector.
Near the right side cowl inner panel, located under the end of the instrument panel, disconnect both halves of the radio antenna coaxial cable connector.
Disconnect the 2 instrument panel-to-heater/air conditioning assembly wiring harness connectors.
At the passenger-s side, remove the 2 instrument panel structural duct-to-heater/air conditioning housing assembly screws.
At the passenger-s side cowl side inner panel, remove the 2 instrument panel-to-passenger-s side cowl side inner panel screws.
With the help of an assistant, lift the instrument panel from the vehicle.
Discharge and recover the air conditioning system refrigerant.
Disconnect the air conditioning system lines at the evaporator. Plug the openings to prevent contamination.
Disconnect the heater hoses from the heater core. Plug the openings to prevent coolant loss.
If equipped with a manual temperature control system, unplug the heater/air conditioning system vacuum supply line connector from the T-fitting located near the heater core tubes.
From the passenger-s side inner fender shield, remove the coolant reservoir/overflow bottle.
From the passenger-s side in the engine compartment dash panel, remove the PCM; DO NOT unplug it, just move it aside.
In the engine compartment, remove the heater/air conditioning housing-to-chassis nuts.
At the center of the dashboard, remove the rear floor ducts from the floor heat duct outlets.
Disconnect the heater/air conditioning housing wire harness connectors.
In the passenger compartment, remove the heater/air conditioning housing-to-chassis nuts.
Place covers inside the vehicle to catch any spilt coolant.
Remove the heater/air conditioning housing assembly from the vehicle.
Remove the foam gasket from around the heater core tubes.
Note the position of the irregular shaped gasket so that it may be reinstalled in its correct position.
Remove the heater core retainers and screws.
If necessary, remove the mode door actuator for clearance to remove the core.
Remove the heater core from the heater/air conditioning housing assembly.
Fig. View of the instrument panel assembly-Grand Cherokee
On a 1986 jeep I believe it has a "wiper-turn-signal assembly" that is all part of the turn signal lever. (I think its a GM/Chevy style.) The new models have an assembly that's in the steering column behind the steering wheel. If I'm correct that its all part of the lever, that is almost definitely the problem - 98-99%. Pretty much the same answer for the newer versions also. I have replaced over a couple hundred in my "career". Keep smiling.
First thing you need to do is determine if the problem is in the key lock or the switch. Switch is located above the steering column connected to the lock by a rod. Instructions for adjustment/install are usually in the box with the new switch. If key lock is bad, you need to disassemble the upper column under the steering wheel...Instructions can be found in either chiltons or haynes. (book is useful for many other things and a worthwhile investment at around $20.)
Disconnect and Isolate Negative Barrety cable. Remove screw in bottom of steering column shroud cover. ( bottom side of steering column between wiper switch and turn signal switch) Unsnap shroud halves and remove from column. Disconnect wireing harness connector from multi function switch. Remove 2 screws securing switch to mounting housing. Install in reverse order.
There are four (sometimes two) bolts that hold the steering column to the dash. remove them & column will come down to let you get in there. follow instruction sheet with switch. if you don't get it centered correctly it wont work correctly.
I had a similar problem with my 2000 Jeep TJ and I found the problem in the wiring harness under the hood.several wires were corroded and almost burnt off.If you remove the black tape which keeps the harness bundled together and if you see evidence of "green" type powder or "gook" it's most likely where the wires have faulted.
This happened to mine. There is a black box under your dash that controls your wipers have you replaced that first? I tore down my steering column replaced the wiring swirch andall it was is that black box under my dash... If it is the wiring switsh you have to get a sterring wheel puller it makes it easy. Take it all apart you will see the wirer running from the wiper switch down to the dash unplug them on both sides and pull it thru your steering column. get a new one or go to junk yard much cheaper than 80 dollars at advance auto. And put it back together the way you took it apart. There are lots of screws so dont loose them.. Hopeful this will help you but like i said check that black box under your dash first it is a easy fix if thats your problem.