Question about 1990 Chevrolet Suburban
Well this is a long process but ive done quite a few of them. The first thing is to remove the airbag if your suv has one. Im pretty sure that in 1990 they didnt use them in this vehicle.The first step without an airbag is to remove the steering wheel. You will need to remove the horn cover to access the 21/22mm nut holding the steering wheel on. Be sure to not break the wire going to lthe horn switch inside the cover. push in and turn left on the plastic locker that holds the wire into the column and remove it. Then, after removing the nut holding the horn on, u must use a steering wheel puller to remove the steering wheel from the shaft.[normally auto zone will rent these pullers].read the directions of the puller to remove.then there will be what is called a clock spring assy if you have steering controls for the radio. If not the steering lock mechanism will be next. This requires a 90degree angled pick and another special tool to press the lock mechanism down off of the hog nose ring holding the steering lock ring in place.[possibly at auto zone again]. Once again read the direction of use for that special tool. Now you are almost there.Remove the hazard switch phillips head screw.Remove the phillips head screws holding the turn signal assembly onto the steering column[should be four]] and the two holding the lever onto the switch.Remove the drivers side lower dash panel to access the wiring block that has the rectangler conector end of the turn signal assembly attached to it. normally you can use a small screw driver to pry it out of the wiring block. To remove the old turn signal assembly just cut the wires from it at the top near the working part of the assembly .The next step is the hardest because you have to route the new turn signal wiring down through the steering column like the old one was.Tke some electrical tape and attach the new turn signal wiring to the old wiring and guide it down the column as your removing the old at the same time. Make sure to have the rectangler portion of the new wiring at the right angle when taping so theat it fits going through the steering column....Now just reverse this procedure to finish the install....Note that if you are not careful, the loose turn signal lever will allow the high/low beam switch mechanism to fall out of the actual high/low beam switch attached to the steering colmn.there are a couple more things like a flex type washer and the white horn mechanism to remove suring this removal process. Just keep all your parts in the order removed and all should be well....told ya it was long!!! If you have any questions, just e-mail me and i will help more if i can....Hope you have much luck with this job, Ken..email@example.com
Posted on Oct 08, 2010
You Will NeedSpecial Tools Required
Steering Wheel Puller $10.00, but a harmonic balancer puller will also work
Don't attempt to pound the wheel off, you could damage the steering column.
Locking Plate Remover $15.00, available from autoparts store.
Pivot Pin Removal Tool GM part J21854-01 (not sure about availability from autoparts store)
1.Remove steering wheel, this would be a good time to disconnect the battery as well.
2.Pry off plastic cover
3.Remove lock plate. With the tool this is easy. The tool compresses the lock plate against it's spring so that you can get the retaining ring off. It is possible to take this off with C-Clamps, Large Channel locks, etc. Can be very difficult to put back together with these tools. (I did it both without and with the tool, trust me it is $15 well spent)
4.Remove philips screw that holds small piece of metal that connects to turn signal stalk.
5.Remove 3 screws that hold turn signal switch assembly in place.
6.Unhook wiring harness to turn signals. This is located under the dash attached to the base of the steering column.
7.Next you will need to loosen the mounting bracket that holds the steering column to the dash and then remove at least two of the bolts that hold the bracket to the column so that you can thread the wiring harness up to allow the housing to be removed latter.
8.You will see a switch with two long copper pieces coming over the top of the ignition lock. Put the key in and turn to the on position. Pull the switch out with a pair of pliers. A small clip should also come out. Note the way all of this is oriented so that you can put it back later.
9.Remove small torx screw to release lock cylinder, pull the lock out.
10.Remove three large torx bolts (#30 I believe)
11.At this point you are ready to pull the housing off. As you pull it out a small plastic piece will fall out on the left (driver's) side. This is for the dimmer switch.
believe that they must have meant 3/16".
Posted on Oct 08, 2010
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Posted on Jan 02, 2017
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