# Unlock your car with a tennis ball??? \*VID\* **URL:** \ **Category:** NYSpeed Off Topic\ **Created:** [February 2, 2007, 1:02pm UTC](https://forums.speedlife.net/t/unlock-your-car-with-a-tennis-ball-vid/23968 "2007-02-02T13:02:41Z")\ **Posts on this page:** 16\ **Page:** 2
**Author:** ![Smaefer](https://avatars.discourse-cdn.com/v4/letter/s/e79b87/32.png) [@Smaefer](https://forums.speedlife.net/u/Smaefer)\ **Post date:** [February 2, 2007, 8:23pm UTC](https://forums.speedlife.net/t/unlock-your-car-with-a-tennis-ball-vid/23968/21 "2007-02-02T20:23:56Z")
> [@JDMSIR](#): > > Not my fault 🙂 This is why I’m eliminating my lock cylinder… 🙂 ---
**Author:** ![LAFENGAS](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/lafengas/32/7573_2.png) [@LAFENGAS](https://forums.speedlife.net/u/LAFENGAS)\ **Post date:** [February 2, 2007, 8:26pm UTC](https://forums.speedlife.net/t/unlock-your-car-with-a-tennis-ball-vid/23968/22 "2007-02-02T20:26:11Z")
> [@Rx3](#): > > It is true for some cars. Some of the newer Mercedes for instance have vacuum air locks (not mechanical motor). The locking mechanism pushes air through the system to pop the locks. > > I doubt it will work on older cars, but some of the new cars it will work on. of all the people… RICK, how do you know? :eyebrow: ---
**Author:** ![Rx3](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rx3/32/7194_2.png) [@Rx3](https://forums.speedlife.net/u/Rx3)\ **Post date:** [February 2, 2007, 8:29pm UTC](https://forums.speedlife.net/t/unlock-your-car-with-a-tennis-ball-vid/23968/23 "2007-02-02T20:29:51Z")
:uhh: ---
**Author:** ![VANDIT](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/vandit/32/4977_2.png) [@VANDIT](https://forums.speedlife.net/u/VANDIT)\ **Post date:** [February 2, 2007, 8:30pm UTC](https://forums.speedlife.net/t/unlock-your-car-with-a-tennis-ball-vid/23968/24 "2007-02-02T20:30:37Z")
98%of cars electronic or not operate on a rod system, this is BS! ---
**Author:** ![articzap](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/articzap/32/7361_2.png) [@articzap](https://forums.speedlife.net/u/articzap)\ **Post date:** [February 2, 2007, 9:27pm UTC](https://forums.speedlife.net/t/unlock-your-car-with-a-tennis-ball-vid/23968/25 "2007-02-02T21:27:10Z")
People just don’t read. On vaccum accuated door locks, this will work. ---
**Author:** ![Justin](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/justin/32/7459_2.png) [@Justin](https://forums.speedlife.net/u/Justin)\ **Post date:** [February 3, 2007, 9:26am UTC](https://forums.speedlife.net/t/unlock-your-car-with-a-tennis-ball-vid/23968/26 "2007-02-03T09:26:53Z")
> [@Smaefer](#): > > This is how S4’s get jacked all the time… And I think it’s a bad idea posting this up. I’m sure the ones with a criminal mind will be giving it a try for the wrong reason. This is scary ---
**Author:** ![KuntryQuestTSi](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/kuntryquesttsi/32/5010_2.png) [@KuntryQuestTSi](https://forums.speedlife.net/u/KuntryQuestTSi)\ **Post date:** [February 3, 2007, 10:12am UTC](https://forums.speedlife.net/t/unlock-your-car-with-a-tennis-ball-vid/23968/27 "2007-02-03T10:12:50Z")
ssooo wouldnt a plunger work also? lol ---
**Author:** ![SubaruDan](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/subarudan/32/7195_2.png) [@SubaruDan](https://forums.speedlife.net/u/SubaruDan)\ **Post date:** [February 3, 2007, 10:17am UTC](https://forums.speedlife.net/t/unlock-your-car-with-a-tennis-ball-vid/23968/28 "2007-02-03T10:17:48Z")
^lol ---
**Author:** ![camarojoe](https://avatars.discourse-cdn.com/v4/letter/c/c67d28/32.png) [@camarojoe](https://forums.speedlife.net/u/camarojoe)\ **Post date:** [February 3, 2007, 10:31am UTC](https://forums.speedlife.net/t/unlock-your-car-with-a-tennis-ball-vid/23968/29 "2007-02-03T10:31:41Z")
Here’s an easy fix to her solution. Instead of carrying around a tennis ball in her purse to get the key she locked in her car… Why not carry a spare key… ---
**Author:** ![skylinez07](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/skylinez07/32/4993_2.png) [@skylinez07](https://forums.speedlife.net/u/skylinez07)\ **Post date:** [February 3, 2007, 11:47am UTC](https://forums.speedlife.net/t/unlock-your-car-with-a-tennis-ball-vid/23968/30 "2007-02-03T11:47:14Z")
> [@KuntryQuestTSi](#): > > ssooo wouldnt a plunger work also? lol wouldnt it? ---
**Author:** ![ly555is](https://avatars.discourse-cdn.com/v4/letter/l/3bc359/32.png) [@ly555is](https://forums.speedlife.net/u/ly555is)\ **Post date:** [February 3, 2007, 11:54am UTC](https://forums.speedlife.net/t/unlock-your-car-with-a-tennis-ball-vid/23968/31 "2007-02-03T11:54:48Z")
> [@Smaefer](#): > > This is how S4’s get jacked all the time… And I think it’s a bad idea posting this up. it’s on the internet. i think anyone who would be into stealing cars would prolly think to check there at some point on how-to. i blame the internet :tup: ---
**Author:** ![VANDIT](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/vandit/32/4977_2.png) [@VANDIT](https://forums.speedlife.net/u/VANDIT)\ **Post date:** [February 3, 2007, 1:53pm UTC](https://forums.speedlife.net/t/unlock-your-car-with-a-tennis-ball-vid/23968/32 "2007-02-03T13:53:32Z")
> [@camarojoe](#): > > Here’s an easy fix to her solution. > Instead of carrying around a tennis ball in her purse to get the key she locked in her car… Why not carry a spare key… smartest thing anyone said soo far ---
**Author:** ![thelosthero](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/thelosthero/32/4957_2.png) [@thelosthero](https://forums.speedlife.net/u/thelosthero)\ **Post date:** [February 3, 2007, 2:06pm UTC](https://forums.speedlife.net/t/unlock-your-car-with-a-tennis-ball-vid/23968/33 "2007-02-03T14:06:10Z")
so did any1 actually try it ? ---
**Author:** ![JayS](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jays/32/15375_2.png) [@JayS](https://forums.speedlife.net/u/JayS)\ **Post date:** [February 3, 2007, 2:15pm UTC](https://forums.speedlife.net/t/unlock-your-car-with-a-tennis-ball-vid/23968/34 "2007-02-03T14:15:57Z")
Ok, curiousity got the best of me and I tried it. It makes sense for vacuum operator door locks, but I started thinking about how tightly sealed modern vehicles are and wondered if it might work on other locks. If you force air into the door one of the few places that will easily expand is the pop up lock, especially if the lock part is substantial like on my GTO. So, despite protest from my dog for taking a Dremel to one of his prized tennis balls, I tried it out. With a dry tennis ball I don’t think it would work on any car. There simply isn’t a good seal between car and ball. But, once I wet the tennis ball I could tell the air was definitely going into the door. The locks on the Expedition and GTO didn’t budge though, so looks like I’m safe. ---
**Author:** ![MikeRi24](https://avatars.discourse-cdn.com/v4/letter/m/57b2e6/32.png) [@MikeRi24](https://forums.speedlife.net/u/MikeRi24)\ **Post date:** [February 3, 2007, 2:23pm UTC](https://forums.speedlife.net/t/unlock-your-car-with-a-tennis-ball-vid/23968/35 "2007-02-03T14:23:59Z")
> [@JayS](#): > > The locks on the GTO didn’t budge though, so looks like I’m safe. good to know! ---
**Author:** ![Jack](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jack/32/7613_2.png) [@Jack](https://forums.speedlife.net/u/Jack)\ **Post date:** [February 4, 2007, 7:11am UTC](https://forums.speedlife.net/t/unlock-your-car-with-a-tennis-ball-vid/23968/36 "2007-02-04T07:11:00Z")
Just because locks are run by air, or vaccuum… doesn’t mean the key hole is going to be able to push air into the system to open the lock. 1. The keyhole is purely mechanical. Everything behind the key hole is also mechanical. Unrelated to air. There are tumblers inside a lock, when moved by the ridges on your key, they allow your key to turn. This mechanical, unrelated to air, movement… can then induce a pump of sorts to pressurize or de-pressurize the system to allow lock movement. 2. In these vaccuum accuated systems… operated on vaccuum… THEY HAVE TO BE AIR-TIGHT… otherwise a vaccuum … and or a pressurized system cannot exist. 3. A plunger would work much better. [Previous page](https://forums.speedlife.net/t/unlock-your-car-with-a-tennis-ball-vid/23968.md?page=1)