964, rear spoiler won't work

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

depending on the type there is a motor or magnetic pin system. motors can fail and the magnetic pin type well they can rust up or even the grease in them can freeze up and stop movement. also on some models there is a auto mode this will activate the spoiler at certain speeds. these are prone for failure, for some reason they stop reading the speedo , then in auto or in manual it will not work. also in cold weather you should have it turn'd off... this is recommended from porsche something about only use in above temps of 6.0c 42.8F is minimum low temp. the temp sensor on some turn off the spoiler controls at this speed or a faulty temp sensor not reading the right temp will do this.

You'll need to open the trunk and remove the trim along the top of the trunk. The trim will be secured by some screws that should be along the perimeter of the trim. Once the screws are out, gently pop the trim off (there will be retaining clips that you don't want to break) and then you can access the bolts securing the spoiler onto the trunk. If you plan to not use a spoiler, you will need to find something to plug up the holes to prevent water and dust from getting into the trunk.

you will find the complete lamp needs to be replaced it usually is screwed in from the front of the rear spoiler but differs from spoiler to spoiler

Just took mine off. There are three 10mm bolts that gofrom inside the liftgate into the spoiler-one on each end of the spoiler, oneaccessible through the large hole in the center of the gate. There arealso three pegs (that you can't see) mounted on the spoiler just under theupper rear taillight. The pins plug into holes on the liftgate. There's one peg towards each end of the taillight, back towards the roof. There's one in the center of the spoiler, towards the window. They'retight and solidly their holes. There is no tape or glue-just bolts andpegs. You don't have to cut or drill anything. The only tools you'llneed are a 10mm socket, an extension, and a ratchet.

I discovered the pegs when I got fed up trying to figure out what was holdingit on, said to heck with it, I know I may break something, but I've got to fixwhat's broke and gave it good, firm lift up from the window edge. Lo andbehold, it popped off--much to my relief. I fixed what I needed to(stopping the spoiler from vibrating madly as I rode down the road), and justpopped and bolted it back on. You don't need any kind of kit toreinstall it.

Once it's off, you can access the taillight and sprayer. Noproblem.

My only concern now is what I would have had to do if I'd broken one of thepegs. Thankfully, I didn't have to do that, so if you do, I can'thelp. It's easier than it looks, but it is scary

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]

regarding chevy equinox spoiler there are three 10mm bolts one on each end and one in the middle then there are three pins in the middle that snap in. these are very difficult to release without breaking them. If they break use a two part adhesive sparingly to hold the spoiler down or it will hit when you open the hatch.

The rear spoiler is controlled by a Rear Spoiler Control Module. Fuse 35 (30A) and Fuse 5 (7.5A) located in the fuse panel behind left side of dash provide power to the control module. After ensuring that the fuses are good, I would toggle the Rear Spoiler Switch to see if the servo-motor works properly. It is located under the steering wheel underneath the flat part of the dash.

place the spoiler in the aria you want to fit it and make measurements, so they equal either side mark with a wipeable pen. and then measure the boot edge to where the spoiler is so its straight. check twice the drill the holes out using the the plate of the spoiler for the markings, check twice then drill measure twice. should fit right and look right.

This is more than likely the rear spoiler. When exceeding 45 mph, the spoiler will deploy but is hard to hear due to the sound of the engine, when decelerating back to 10 mph (or less), the spoiler will return to its stored position. This sounds exactly like the experience you described, so I am guessing that this is the culprit.
There are a few ways to confirm:
1: Seated in the driver's seat, reach beneath the dashboard console, searching for a button/switch. This will be located at the bottom of the console (roughly, right above where your left shin/knee would be positioned when driving). If you find a switch, push it and see if it deploys the Spoiler. You will need to have the key and turned so that electricals may function.
2: Look above your rear window. You will likely see a black piece of plastic above it which would be the spoiler. Look at the gap between it and the window.. ...looking about 1 fit in from the side of the Spoiler, you will likely see the metal hinge that the moves the Spoiler up.
3: This is the most fun solution: drive the car over 45 with a friend driving behind you. Just to be safe, take it up to 50 or 60 and have them watch to see if it deploys. You will not be able to see it from within the beetle unless you lower the back seat and have somebody crawl all the way into the back (which would be terribly unsafe and uncomfortable).

Let us know if this is indeed the issue and have fun with your bug!