1996 850 spoiler

From the GM 2005 Chevrolet Equinox Service Manual:

Remove Spoiler:
1. Open the liftgate
2. Remove the liftgate upper interior trim panel to expose the center bolt
3. Remove the spoiler to liftgate bolts (3)
4. Disconnect the stop lamp harness
5. Disconnect the rear washer hose
6. Lift the spoiler to disengage the locating retainers and remove the spoiler from the liftgate

Remove the high mounted stop lamp assembly:
1. Remove the spoiler to high mounted stop lamp screws
2. Disconnect the electrical connector
3. Disconnect the washer hose
4. Remove the stop lamp from the spoiler

Install the high mounted stop lamp assembly:
1. Position the stop lamp assembly to the spoiler
2. Connect the washer hose
3. Connect the electrical connector
4. Install the spoiler to high mounted stop lamp screws, tighten to 2 N-m (18 lb in)

Install Spoiler:
1. Position spoiler loosely over the liftgate
2. Connect the rear washer hose
3. Connect the stop lamp harness
4.Push down the spoiler to the liftgate to secure the locking tab retainers
5. Install the spoiler to liftgate bolts; tighten to 2 N-m (18 lb in)
6. Install the liftgate upper interior trim panel
7. Close liftgate

1.Open liftgate before disconnecting battery.
2.Open hood, disconnect and isolate the battery negative cable.
3.Open liftgate.
4.Disconnect the power liftgate prop rod.
5.Remove liftgate trim panel
6.Remove the four retaining nuts to spoiler .
7.Gently lift spoiler off of outer liftgate panel.
8.Disconnect the CHMSL electrical connector.
9.Disconnect the washer hose.
10.Remove spoiler from vehicle.
11.If replacing spoiler, transfer CHMSL lamp to new spoiler.
12.If replacing spoiler, transfer washer nozzle to new spoiler.

Sounds like you have lost ground somewhere along the way. might try running a ground from spoiler to frame or simply replacing wires back to original and trying again. Would put my money on a ground wire. good luck

lift the car and lock inside of the spoiler turn the conector and pull out the light bulb and instal the new bulb light

If the spoiler has mounting studs then holes will need to be drilled into the trunk lid so that the spoiler can be bolted on from inside. You must figure out where to drill the holes so that the spoiler will be centered on the trunk lid. One method is to apply shoe polish or machinist dye to the end of the mounting studs. carefully place the spoiler onto the deck lid where you would like it to be. Press straight down and then lift it straight off with one motion. The spots that are left behind is where the holes should be drilled. The holes can be enlarged slightly to allow for final adjustment. Use spacers between the spoiler and the deck lid to keep the paint from being damaged when closing the trunk lid.

If the original hardware was screwed on, then most likely the bolts rusted and broke. I would suggest to have new spoiler with hardware be installed.

If buying a new one is not within your budget, might be able to glue it on but no guarantees that it will stick for a long term.

the 3rd brake light is mounted to the spoiler. you need to remove the spoiler from the liftgate to acces the mounting bolts and the wire clip. there are five points of attachment of the spoiler,four hex nuts (metric) and one snap clip. two are accessable when the liftgate is open, they are in the corners of the liftgate. two more are under the upper rear window interior trim. the interior trim is held on by snap clips. if you pry outward on the trim starting on the right side of the window and work your way toward the middle you will be able to gain access to the two other nuts. once you have removed all four nuts, then close the liftgate and remove the spoiler by lifting up to disengage the last attachment point (snap clip). you will then need to change the light by removing the two nuts and disconnecting the wire clip. re-instal is the opposite of above. make sure that the wire for the third brake light does not get pinched when installed. (mine was improperly installed from the factory and the wire was pinched and this may have been why there was an early failure of the light)

Some customising shops do a small chrome spoiler which does the trick

Perhaps the springs in the wiper arms are shot and you need to replace them instead of just the blade assy

This is the Spoiler Dude. The spoiler light is attached with screws to the spoiler. You must remove the screws and then the spoiler light will come away from the spoiler. Clip the two wires ( Black & Red ). Attached the new spoiler light ( I can get that for you) with a sleeve. Test the new light with the brake pedal depressed. Screw in the new light and that is it. If you have any questions.
Call Spoiler Dude Paul
719-661-8600
[email protected]

You need to look on under side of spoiler, and match studs. (two way threaded bolts) to the wholes. after that mark where the stud wholes need to go through the trunk then drill wholes a 16th bigger than the studs. After drilling wholes through the trunk get sillicone sealer around wholes. Install spoiler and install bolts on the underside of your trunk.