Skip to main content
105 votes

Does kicking a tire off your car from underneath it while it's held up by a stable jack pose safety threats?

The ONLY time you should crawl under a car is when it is supported by a jack stand or on a lift. A jack is used to jack the car up and let it down. It is a huge safety concern to use it to support the ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
51 votes
Accepted

Is it safe to use a hydraulic jack as a stand? If not, why?

There is no such thing as "absolutely, perfectly, 100% safe." Each tool has its proper and improper uses, and each works either in parallel with other tools to increase safety and dependability, or ...
Adam Davis's user avatar
  • 1,587
38 votes

Does kicking a tire off your car from underneath it while it's held up by a stable jack pose safety threats?

Yes, you do have something to worry about. Even with a lot of weight on a jack, the jack could move, either back and forth, or side to side, and the whole shebang could pivot down until the car rests ...
DavidRecallsMonica's user avatar
25 votes

Is it safe to use a hydraulic jack as a stand? If not, why?

TL DR: Nope, I'd say not. When I was a young man, my Dad always told me, "Use the tool which is designed for the job." For instance, if you are trying to remove a bolt out of your suspension holding ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
24 votes

Does kicking a tire off your car from underneath it while it's held up by a stable jack pose safety threats?

What you did was dangerous, there are Darwin Awards for just this type of thing! The likelihood of something going wrong is low, but the consequences are terrible if it does. There are many failure ...
GdD's user avatar
  • 17k
21 votes

jacking up a car on "grass paving block" - how to secure jack and supports?

I typically use a piece of solid wood large enough to completely fit under the jackstand. Here in the States it would most likely be a piece of 2"x8" or 2"x10" board. I don't know ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
17 votes

Does kicking a tire off your car from underneath it while it's held up by a stable jack pose safety threats?

Assuming you had to do this on the road (why else would you want to put a donut on?), I wouldn't go under the car no matter how steady it is, even on a jack stand on a completely flat patch of ...
Dmitry Grigoryev's user avatar
17 votes
Accepted

Is it OK practice to start a car while it's on jackstands?

The jack points of a motor vehicle are the design locations to allow one to lift the vehicle without creating undue stress in inappropriate locations. This is done for service lifts for the purposes ...
fred_dot_u's user avatar
  • 4,560
17 votes

Can the car jack get adjusted?

The gear mechanism skipped a tooth. It's likely broken and dangerous to use. Such jacks are quite cheap; in Norway they are available for 20-25USD, so I would simply pick up a new one, or raise a ...
vidarlo's user avatar
  • 724
16 votes

Is it safe to use a hydraulic jack as a stand? If not, why?

No, I thought it could as well. One time I had a Corolla up in the air while I battled with a speedometer cable (which meant I was going in from the top of the car, underneath, and through the wheel ...
mickburkejnr's user avatar
16 votes

Is it OK practice to start a car while it's on jackstands?

If a vehicle is supported correctly via jack stands, I wouldn't have a problem starting the vehicle. The main thing you need to worry about with the knuckles and front suspension not is place is, ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
15 votes

Does kicking a tire off your car from underneath it while it's held up by a stable jack pose safety threats?

Even if you had supported the car properly with jack stands, it was still a huge mistake to kick it or exert force on it. Even jack stands are not so stable that they can handle a lot of dynamic side-...
Harper - Reinstate Monica's user avatar
15 votes
Accepted

Can I jack up the front of my car on the lower control arm near the ball joint without damaging anything? (Honda Civic EM2)

Yes, you can lift from this point without any damage to the ball joint. The ball joint itself is pressing into itself. It is very strong in this direction. It's strong in the other direction as well, ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
14 votes
Accepted

Can I leave my car on a jack for several days?

Leaving the car jacked for a long time is very risky: remember jacks are designed with systems for lifting and lowering a load. Some use hydraulics, other a screw type system but all of them works ...
Aram Alvarez's user avatar
  • 3,346
12 votes

Is it safe to use a hydraulic jack as a stand? If not, why?

NO, and I don’t understand why you don’t refer to standard workshop practise which is to lift the vehicle and then put proper stands under it. Sadly there are too many accidents of either vehicles or ...
Solar Mike's user avatar
  • 34.6k
11 votes

Is it safe to use a hydraulic jack as a stand? If not, why?

Stands are simple mechanical devices in the sense that typical failures (cracks, bends) are easily observable by a simple visual inspection. That's what makes them inherently safe. A hydraulic jack ...
Dmitry Grigoryev's user avatar
10 votes

Can I leave my car on a jack for several days?

There's a difference between a jack and a jack stand. I've left vehicles on jack stands for days, even weeks, but a jack, regardless of type, is prone to failure: they are designed to raise and ...
tlhIngan's user avatar
  • 12.2k
9 votes

Is it safe to use a hydraulic jack as a stand? If not, why?

No it's not the same as a jack stand or even a brick or a tire on its side. My primary fear/experience is that a jack will tip. Adam Davis explains the risk of slow leakage, which is a thing, but ...
seizethecarp's user avatar
9 votes

Does kicking a tire off your car from underneath it while it's held up by a stable jack pose safety threats?

Never, EVER get under a car supported by a hydraulic jack alone. You MUST use jack stands (or something equivalent) or you are practically begging for a Darwin Award. Consider that if you use a ...
mindcrime's user avatar
  • 201
8 votes

Is it safe to use a hydraulic jack as a stand? If not, why?

Hydraulic jack seals blow. Because hydraulic jack seals blow one should never put body parts under a load (vehicle) raised with a hydraulic jack. Let me state that again so that it sinks in: ...
dotancohen's user avatar
  • 1,723
8 votes

jacking up a car on "grass paving block" - how to secure jack and supports?

Your problem is a dangerous one. I am very strict with jackstand safety because I'm old and have seen too much. Plywood is definitely out. 2X12 are better, but any give in the soil beneath can cause ...
Jupiter's user avatar
  • 3,320
7 votes

Does kicking a tire off your car from underneath it while it's held up by a stable jack pose safety threats?

Don't hammer a rim... even a steel one can deform and then it is a bin job but an alloy is pretty easy to damage. Frankly with a wheel stuck on there are a couple of less dodgy options (and if it is ...
dave's user avatar
  • 79
7 votes
Accepted

What is this jack in the car lift shown in the picture?

It is a jack for a 4 post lift. Looks like they are called a “4 post lift rolling jack” See for example https://www.challengerlifts.com/products/4-post-accessories/ and https://www.uniteautomotive.com/...
HandyHowie's user avatar
  • 25.4k
6 votes

Is it safe to use a hydraulic jack as a stand? If not, why?

It's not safe. The probability for a jack to lose pressure slowly and even rapidly due to extreme failure is exponentially higher than a welded jackstand coming apart. Also there's the argument that ...
user1630126's user avatar
5 votes

Safe jack / jack stand points for 2002 Ford Focus

Jackstand points on that car should be placed on the pinch welds near the door. underneath the car toward the front. Where to properly jack up and support a car In that video he explains how to do ...
cloudnyn3's user avatar
  • 3,343
5 votes

Is my working area safe?

No, I do not think your setup looks safe. Practical recommendations first, though: I think that ramps are a good idea. I have some that I like very much made of very heavy duty plastic. They have a ...
Bob Cross's user avatar
  • 24.4k
5 votes

Does kicking a tire off your car from underneath it while it's held up by a stable jack pose safety threats?

I've pulled a car clean off a jack before. Just don't. In many case the handbrake was stuck on (broken spring) and the ground wasn't great so as soon as the load on the jack was slightly off ...
Chris H's user avatar
  • 819
5 votes

Does kicking a tire off your car from underneath it while it's held up by a stable jack pose safety threats?

A Jack is inherently unstable. It rolls, it has poor base, the wrong part of the car is often used as the contact / lift point. I can often cause a jack to fail with only moderate lateral force. A ...
SteveJ's user avatar
  • 151
5 votes
Accepted

Jacking up a Mk1 Ford Focus around its pinch welds

Every contemporary vehicle which I have had to elevate had the body style shown in your images. The jack mechanism also matched the pinch weld for each vehicle. Additionally, for an electric vehicle ...
fred_dot_u's user avatar
  • 4,560
4 votes

How to verify the safety of a lift for a full sized pickup?

What I do if I'm not sure about the vehicle being stable way up there is: gently nudge the vehicle side to side using only the strength from your wrists. Kind of like when you're checking if a door ...
tlhIngan's user avatar
  • 12.2k

Only top scored, non community-wiki answers of a minimum length are eligible