What methods are working for you guys to get all the bubbles out? 08 redline.

Changed water pump and thermostat and couldn't get it bled, found out I had no flow from the water pump. Replaced with a new water pump and thermostat (again) and drilled 2 small holes in the thermostat to help with air. Vacuum filled it, tried pushing air through the reservoir like ive seen in a video, tried using a no spill funnel, but I cant get the air out for the life of me. This new water pump does have good flow tho.

Prior to water pump/thermostat no temp issues, and the check valves are installed. Car will stay within a decent temp and have hot heat until I start driving it, after roughly 1-2 minutes the heat goes cold and the temp start climbing.

PFA

I'm looking to get a new muffler for my 2007 Sky Base with the 2.4. I definitely don't want to be annoying. So I'm not looking to straight pipe this thing haha.

What are some good options for some reasonable volume mufflers? Louder than stock but not anywhere near approaching straight pipes. What inlet and output sizes do I need?

Continuing from Part 1: https://www.reddit.com/r/SaturnSky/comments/1mz37sh/parasitic_battery_drain_troubleshooting/

Really, the heatshrink tubing was more of a pain then I was expecting - a good electrical tape job should be good enough.

1. Multimeter Test & Final Verification

With XM disconnected and OnStar bypassed, I reinstalled Fuse #56 and tested the draw:

• Meter inline with negative cable.
• Wait 20–30 minutes for sleep mode.
• Final steady draw: ~0.017A (18 mA) — perfect.

A month after this fix, I have not had to charge the battery and it is still holding strong.

✅ Results

• Before: ~200mA–1.4A draw (battery dead in days).
• After: ~18mA draw (normal).
• Remote locks and trunk release still work.
• OnStar is gone (doesn’t matter), XM disabled (if you had it).

🧭 Final Notes

• Always let the car sleep before trusting your readings.
• Start with Fuse 56 for confirmation, but don’t stop there.
• XM is optional (remove only if you don’t care about losing it).
• OnStar delete requires jumpers — don’t skip this step.
• Bonus: swap the trunk light for LED while you’re in there.

This simple weekend job cured the battery vampire in my Sky.

If your Sky/Solstice keeps killing its battery after sitting, the most common culprits are Fuse 56 (engine bay), the Satellite XM module (trunk), and the OnStar VCIM (behind the seats).

Both OnStar and XM can draw power even if you don’t use them. Here’s how I tracked and fixed mine, step by step.

📑 Index

1. Multimeter Setup for Parasitic Draw Testing
2. Fuse 56 in Engine Bay – Quick Confirmation
3. Satellite XM Module in the Trunk
4. OnStar VCIM Behind the Seats (Jumper Required)
5. Multimeter Test and Final Verification

0. Multimeter Setup for Parasitic Draw Testing

Before pulling fuses or unplugging modules, you need to measure the draw correctly:

1. Make sure the battery is fully charged, the car is powered off (key out, lights off, doors closed).
2. Disconnect the negative battery cable.
3. Put your multimeter in series between the battery post and cable.
   • Use the A/mA port.
   • Set to DC Amps.
4. Watch the reading — the car may spike at first, but let it “sleep” (20–30 minutes).

Normal draw: ~20–30 mA (0.020–0.030 A).
Mine before fix: ~200–1400 mA (0.2–1.4 A).

1. Fuse 56 in Engine Bay – Quick Confirmation

A parasitic drain can come from anywhere. You can determine which one by pulling fuses one at a time. if you see a massive drop with a fuse pulled, look at what is powered by that circuit and go from there. Chances are, on a Kappa car, that it is Fuse #56 in the engine bay fuse box.

• With the fuse in, I saw 200mA+.
• Pulling Fuse #56 dropped the draw immediately.

Fuse 56 powers the OnStar module (which is no longer functional in these cars due to updates in cellular standards). It also powers the Satellite FM module. I have an aftermarket radio and don't need the OEM module.

⚠️ Note: Fuse 56 also powers RKE (keyless entry & trunk release). Don’t leave it out permanently unless you want to lose those functions — use this step as a diagnosis only. I didn't want to lose the remote lock/unlock - especially the remote trunk opening with the remote.

1. Satellite XM Module in the Trunk

If you still subscribe to XM, NOTE — unplugging this disables it. Reconnect this after testing to ensure continuing functionality.

• Passenger side trunk, under the carpet liner.
• Remove the liner (a few fasteners).
• Locate the silver XM module and unplug the harness.

After I disconnected mine, the current dropped significantly - but not enough <sigh>.

👉 Tip: while you’re here, replace the trunk light with an LED bulb — brighter, cooler, and lowers long-term draw.

1. OnStar VCIM Behind the Seats (Jumper Required)

OnStar is dead in these cars, but the module is still tied into the car’s communication bus. If you simply unplug it, the car won’t run — it’s like cutting the spinal cord.

• Remove trim behind the seats.
• The silver box you uncover is the OnStar VCIM.
• Disconnect the harnesses.
• On the black 16-pin connector, you must install jumpers to keep the network loop intact.
  • Example: Pin 2 → Pin 8, Pin 3 → Pin 9 (verify against your connector).
  • I purchased a set of wire jumpers to use (https://www.amazon.com/dp/B07CJYSL2T?ref=ppx_yo2ov_dt_b_fed_asin_title) but you only need 2 out of a 560 set box. Using short sections of 24 AWG wires, stripped and bent will also work. Some people have also used cut and bent paper clips - but I wanted something a bit more OEM
• Seal with shrink tubing/tape.

To get to the module, you need to remove the door sill pieces, rear quarter pieces, the parking brake center piece, and the full rear piece (that includes the central storage cabinet. It is a lot of prying plastic tabs - be careful not to break any of the clips.

The rear speakers are also connected here and need to be carefully removed.

<<<<Continued in 2nd Post>>>> https://www.reddit.com/r/SaturnSky/comments/1mz3fvq/parasitic_battery_drain_troubleshooting_part_2/

I own a base model 07 sky. I am interested in maybe buying the OEM subwoofer mount that came with the monsoon fitted cars. I know i’ll need to have cables ran and such to make a sub actually work but will the mount itself actually seamlessly install behind the passenger seat even thought it originally wasn’t fitted with the monsoon sound system?

Automatic redline, asking $6000. Any advice would be greatly appreciated

Looking for some help or insight here.

I recently had my 2008 Pontiac Solstice GXP tuned and also had an aftermarket exhaust installed, which included removing the catalytic converter.

Since then, I’ve been running into a few issues, most notably with boost. Sometimes I get full boost and the car runs great, other times it starts up with almost no boost or only partial boost. It feels totally random when this happens.

Here are the codes I’m getting:

• P0236 – Turbocharger Boost Sensor A Circuit Range/Performance
• P2187 – System Too Lean at Idle (Bank 1)
• P2261 – Turbo/Supercharger Bypass Valve Mechanical

Supposedly, the car has a custom tune and the mods were done professionally. I'm just trying to figure out why the performance is so inconsistent. I've checked for obvious vacuum leaks and loose connections but everything seems fine on a basic visual inspection.

Has anyone run into this before? Could this be a tune issue, a sensor problem, or something with the turbo bypass valve?

Any advice would be appreciated. I’d really like to get this sorted before I throw more parts at it blindly.

Thanks in advance!

New 07 Sky owner. Bought the vehicle online. All looked good but I was expecting to be met with some small surprises. However, the entire trunk and some of the cab smells like mold/stagnant water. I felt the trunk liner and it was wet. I tried to clean some of it up but it was quite saturated. Upon further investigation I peeled back the liner to reveal quite a bit of water between the liner and the metal base of the trunk. Not good. The water is near some electrical which also highly concerned me.

Also noticed the right rear headlight housing full of condensation.

Does anyone else have experience with this? I’m quite worried. The car was outside for a while at a dealership for about a month.

Hey all, I designed and 3D printed a phone mount for my dad’s Saturn SKY and thought I’d share it here. It fits under the transmission tunnel and installs with strong double-sided tape — no cutting or drilling needed. Since it fits well in the SKY, it should work across the whole Kappa platform (Pontiac Solstice, Opel GT, etc.). I’ve made a few versions: Basic mount One with USB slot cutouts (for aftermarket radios — just the slots, no actual USB ports) A wireless charging version Logo options: Solstice, SKY And Opel GT I also have a couple of matching keychains that I plan on releasing soon (still working on a few) Not a big brand or anything — just figured I’d offer it after people started showing interest. If you want to check it out, here’s the link: https://mind2model.etsy.com/

I am brand new to my '07 Sky. There is a clicking sound deep in the dash on the driver's side. The vents don't blow properly. I replaced the first actuator. When I turned the key on and turned the knob to different settings (head, blend, feet ect) the sound continued. The problem is still there. I did see a white arm (3) above the actuator (1) that I replaced. What are the other two actuators called? Is there an easier way to access them? Floorboard life isn't for me. Photo is from a Solstice forum.

I've wanted one of these cars since it came out when I was in college. Really excited to be here in this sub :)!

Just picked her up tonight, 1 owner, 49k and in very nice shape!

I have a Redline, but it's in storage so I can't go measure this. I'm trying to find out how much space is behind the passanger seat with it slid all the way forward. I understand there's very very little. But I don't need much, and Googling I'm not finding an actual measurment anywhere. When I get it out of storage I want to have a shallow sub put in. And telling the shop "not a lot" for how much space doesn't help them at all lol. I'd like to know before hand so I can figure out how much $$$ I'll need for this adventure.

I know it's tight back there, but I'm thinking it'll be enough. The actual number would tell me if I can use Alpines shallow sub that comes in an box. 2 other option are having them make me a custom fabricated enclosure to go in the firewall. Or a custom one that slides under the passanger side footwell.

The shop needs to look at the car before they can quote me for the 2 custom jobs, but I'm assuming either would be a lot more $$$$ than the boxed verion Alpine sells. The box one's meant to be mounted under a seat so I'm assuming it'll fit, but I don't want to assume because I'm wrong, a lot. And if it won't fit I'm not sure I want to pay to have custom stuff fabricated, or the car modified so the sub will fit.

I would like to be able to use the trunk

But I’d be using it as a daily driver, it is my dream car. Good deal or should I look for something more reliable

Looking at purchasing a 2008 with a 5.5L cts-v motor (LT6 I believe).

Trying to figure out how they did this, if it's a totally custom thing or if it's a kit that has proven history.

Does anyone have ANY info on this kind of modification?

ETA info from seller:

The engine started as an ls4.

Built with a brt stage 2 valve train and ls2 intake, Ls3 throttle body.

243 heads.

4L70e trans with custom bell housing and converter.

Diff is 3.50 from Cadillac CTS.

New bilstein struts and springs on all four corners.

Got an oil extractor from eBay for $100 bucks. With the oil filter being on top, this is the easiest oil change I've ever done. 100% with the hundred bucks!!

So i ended up getting it for $14500. Only yellow manual around. Picked it up In NJ with 21500 miles on it. Drove it home almost 6 hours with no issues. Has a few minor scuffs on the paint. I'm thinking about swapping the wheels for some black ones and definitely need to upgrade the radio.

Hello! I just bought a 2008 base model Sky today! I’m looking to upgrade the stereo system to something touchscreen and with Bluetooth, at an affordable price. Any suggestions/ recommendations on ones that fit good? I’ve seen some websites kinda contradict eachother on what exactly fits, I was considering a Pioneer DMH-241EX. Thank you for the info!!

Any recommendations? Looking for someone to check manual transmission, but also doing regular maintenance (oil change etc...).

Thanks in advance!

I've run across a beautiful looking 2007 sky, ad says no problems. under $6K. My concern is that it's got 220,000 miles on it. How bad an idea is buying it?

Recently came across a 5spd 2008 Yellow Sky w/21k miles for $14500. Thinking about taking the leap. Love the color and the mileage. Car Fax shows that it's been taken care of with 1 minor drivers side door collision. What to do. I've always wanted one and to me the price seems right.