Questions tagged [safety]

Questions relating to the safe use of tools, safety procedures, use of safety equipment and other methods of avoiding harm to yourself or others.

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6
votes
3answers
27k views

What are the side effects of using the wrong tires?

Last time I got new tyres I was advised that as they were out of stock of the particular size I was after (195/60/R15) and since they were part used tyres, I should be OK going with a slightly ...
1
vote
1answer
75 views

is a seriously corroded driveshaft and u joints on an F150 safe? dealer who sold me car says no

I think a corroded drive train this corroded is a safety issue, bought used f150 from dealer get out on highway and was scared to hell whole truck shook so bad -drove truck back later same day saying ...
13
votes
4answers
20k views

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

I am doing a hub seal replacement on my old Landrover. Sadly I screwed up the new seal by putting it on too far, and then by trying to tweak it back out I wrecked the tension spring inside the seal. ...
34
votes
12answers
15k views

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

I just had to put a doughnut on my car and I used the typical manufacturer car jack that fits into that little slot of metal near your wheel. After I got all the lug nuts out, I tried pulling the ...
0
votes
1answer
70 views

Is this tire damaged? (ran on flat)

Flat and after-flat pics (it was installed on the other side after flat... I think) Ran about 70 meters (76 yards) at very-very low speed with this tire completely flat, it only has 2000 miles on it,...
3
votes
3answers
778 views

Aftermarket seats

The drivers seat in my 2011 Honda Civic causes me back and knee pain. The rest of the vehicle is fine, so I can't justify getting another one. I've spent much time fiddling with the adjustments, as ...
6
votes
4answers
16k views

Technique to test an alternator - fact or fiction?

A friend explained that the following is a simple way to test an alternator to see if it is working: Turn on the vehicle. While it is running, carefully remove one of the 12V battery leads. See if ...
0
votes
1answer
27 views

How much can I load on my trailer on my 2017 Subaru Legacy?

I have a 2017 Subaru Legacy with a standard trailer hitch installed at U-Haul. I pull a 5' by 8' utility trailer bought from Tractor Supply. I would like to carry multiple bookcases in the trailer ...
2
votes
1answer
58 views

Newly purchased tire showing signs of crazing around the rim — is this expected/normal?

I unwrapped my newly acquired motorcycle front tire (sold as new), and noticed some cracks/crazing along the rim on both sides. The tire looks brand new and perfect otherwise. Should any amount of ...
3
votes
1answer
144 views

What would be so wrong with using ATV preventative tire sealant in a street car?

I've been looking for a type of tire sealant like Tireject/Slime that will prevent flats, not the emergency repair kind. Both of these companies sell the preventative goop, but they specifically state ...
3
votes
4answers
153 views

What are the safety issues of having a childseat on the front seat?

Assuming the following, are there any safety reason to not put a child in the front seat? I am looking for a technical answer and not opinions e.g. the car chassi is stronger on the rear Assumptions *...
16
votes
4answers
46k views

Do these tyre cracks necessitate replacement?

My car has been off the road for a few months, but will be back on it in a few weeks. The other day, I noticed some cracks between the treads on the front tyres. Not sure how long they've been there. ...
0
votes
3answers
74 views

Mismatched brand tires on back, bad on high speeds?

Wouldn't post a new question if the internet wasn't full of "Yep, perfectly fine" one one side and "Nope, you're going to hit the closest tree" on the other side. Driving a FWD Volvo S40 2.4i. ...
1
vote
0answers
40 views

Safety Recall - Dealers say “we don't have the parts for this”

So I've been consistently getting "recall" notices for my car and every time I receive one of those mails I immediately call the number on them. I am redirected to a dealer who always answers with the ...
16
votes
2answers
2k views

Is it safe to drive in race conditions with missing lug nuts?

You know sometimes you read something and think "What?" Well, would you be happy to drive a 900 BHP car in a competition with lug nuts missing? Apparently NASCAR has introduced a rule change so that ...
10
votes
3answers
2k views

How are showroom/display vehicles prepared?

These vehicles are kept in buildings, so I imagine there are some safety considerations (e.g. no fuel and oil) being followed? Are they brought in straight from manufacturing so that there is no risk ...
15
votes
2answers
2k views

What does this symbol of a car balancing on two wheels mean?

The symbol on the left in the image below is ubiquitous, yet so cryptic. What does it mean? Is it just a warning that the car is at risk of toppling over? I tried paging through the owner's manual ...
8
votes
7answers
24k views

Leaving vehicle on 4 jack stands several days

I was wondering if it is bad (for the frame or the drive train) to leave my 4WD V6 Tacoma on 4 jack stands for several days while I work on the transmission. I could certainly lower it down after ...
5
votes
3answers
712 views

Can I insulate my van's floor UNDER the bottom, in the undercarriage?

I recently bought a 2006 Ford E-350 which I am converting into a tiny home for full-time dwelling. My problem is once that I have about 2 inches of vertical clearance from the ceiling. My options are:...
13
votes
6answers
280k views

Can this tire sidewall damage be repaired or should I replace the tire?

I* hit a curb and got a small tear in the front passenger side tire. The tear is about 1" long and goes mostly across the surface of the tire but also a little bit, maybe 1/4", toward the inside of ...
1
vote
2answers
2k views

Why Don't Medium Duty and Heavy Duty Trucks require Airbags?

Why Don't Medium Duty and Heavy Duty Trucks require Airbags? According to GSO 42 regulation, Passenger Cars, MPV, Trucks or Buses with GVW less than 3500Kg requires an airbag, while for MDT & HDT ...
5
votes
1answer
234 views

Safe working technique; four axle stands

I would never dream of going under a car without it adequately supported; axle stands plus wheels, if removed, laid under the sills (rockers). I have a full set of brake lines plus a serious amount ...
2
votes
3answers
472 views

Do you really need to replace split pins? (aka: cotter pins)

Split pins missing. Mechanic 1 told me you must do it, it is essential for safety. Mechanic 2 told me its no big deal only japanese cars have it, you don't see them on german cars and car is still ...
4
votes
3answers
3k views

Cut on the sidewall - is this safe or should i replace?

I am not sure if this is a cosmetic damage or a structural damage in the tire. The tire is a Bridgestone Turanza 225/40R18 in front. About 18k miles and almost 5 years old. I don't know where I got ...
0
votes
2answers
34 views

Tires of the same model but different sizes - how much difference in quality and performance?

ADAC tested winter tires of size 175/65 R14 T and 205/55 R16 H this year (in English: 175/65 R14, 205/55 R16). I would like to buy a set of size 185/65 R15. Question: Does it make sense to base the ...
18
votes
11answers
15k views

What's the best gear to leave a manual vehicle in when parked? [closed]

I've been told that reverse is the "strongest" gear, so in a manual transmission vehicle you should park your vehicle and leave it in reverse in the event of a parking brake failure. Others have said ...
2
votes
1answer
559 views

Metalic smell when banging fender panel

I was trying to bang out dents in a fender panel from the backside. Whilst banging I smelt and inhaled a lot of metalic smelling particles go into the air and I inhaled through mouth and nose. I did ...
1
vote
1answer
402 views

Can a rock in a tire tread cause a blow out?

A recent answer included this: Actually rocks in tire treads can be life threatening, if they gradually cut through the rubber and eventually cause a blow-out, and you don't usually get any warning ...
0
votes
2answers
113 views

Rock in Disk Brake, Sounds Horrible

Short Back story: I bought a Honda Ridgeline Second generation (2016 - current), 11,000 miles from the dealer, with a state inspection performed on the purchase date. The next day and a maybe 35 ...
5
votes
4answers
11k views

2011 Mazda3 airbag disabled for light passenger

I recently bought a new 2011 Mazda3. Everything about it has been great so far, except one glaring detail. When my 87 pound girlfriend rides in the passenger seat, the "pass airbag off" light comes on....
2
votes
2answers
637 views

Does power steering fluid go bad quickly?

I've always heard that brake fluid goes bad real fast (IIRC, it absorbs the moisture in the air). What about power steering fluid? Can you buy a large container and use it over the years? Or, like ...
7
votes
1answer
4k views

Is the smoke or powder produced from an airbag detonation dangerous/toxic?

When the airbag has gone off, you often see a lot of smoke and stuff and there is a load of dust and powder all over the car What is this powder and smoke normally (obviously all air bags are ...
20
votes
6answers
208k views

I drove with my Parking Brake on for 30 mins: should I be worried?

Yesterday, I was driving my car for about 30 minutes on the highway at speeds of up to 60 mph. I felt my brakes weren't really working and looked down to notice my emergency brake had been on the ...
2
votes
2answers
73 views

Mixing marine & starting batteries with a switch

I have a truck equipped with some emergency equipment that I'd like to be able to use without running the engine the entire time, and without draining the main starting batteries. There is a 1/2/both/...
5
votes
3answers
11k views

Where to store or mount a fire extinguisher?

I bought a small 1kg fire extinguisher for my car. However, I'm not sure where should I mount or store it. It should be readily available for emergencies, but at the same time it must not endanger ...
1
vote
1answer
91 views

Should I replace my tire

Should I replace my tire or is it fine to drive on
4
votes
1answer
1k views

What tyre pressures when the light-load / heavy-load difference is large?

I've just bought a second hand VW Golf TSI. Great car. The fuel flap shows the following tyre pressures in bar (1bar = 14.5psi): bar psi | Load | Front | Rear |...
1
vote
2answers
894 views

Curbed tyre is it safe to drive

I think I may already know the answer to my question, just want some second opinions. I curved my tyre yesterday taking a chunk of rubber out of it. Does it need replacing or is it safe to drive for ...
1
vote
1answer
880 views

Is synthetic oil more harmful than conventional?

To humans, not the engine, obviously. I use conventional oil (5w30) for my truck. When changing the oil, I obviously wear gloves, but inevitably end up getting some on my hands. It never seems like a ...
0
votes
3answers
493 views

How to raise front of car safely?

i need to get under front of car for oil change and some exhaust work. Do I just put front on axle stands and what do I do about back tyres? The might roll either way right? so do I put chock ...
3
votes
2answers
167 views

What damage can you cause by a parking lot collision without visible dents?

Couple of days ago my car was parked in front of another car. Given that I needed more space to get out of the parking spot, I drove backwards and hit the front of the car behind me. I got out of the ...
-2
votes
1answer
81 views

Drive on wheel dolly?

My FWD got a clamp in the rear. Wise to dolly the wheel and drive off? Dolly both rear wheels or just the one? Is it safe on the motorway?
2
votes
3answers
15k views

How serious is this tear in the tire sidewall?

I accidentally hit the sidewall of the curb and it caused a small looking rip/tear. Do you think the tire is still good or should I replace it. I have a 4WD.
9
votes
4answers
8k views

Is it safe to place wood between a car and a jack stand?

I have a 2013 2LS Camaro and I am looking to change the rear differential fluid and need to jack up the rear end of my vehicle. Based on videos and enthusiast forums, people achieve this by putting a ...
67
votes
14answers
29k views

Are classic cars safe?

Are classic cars safe? I am interested to know the differences between modern vehicles and vehicles of old from the 1960s. In the event of an accident, how does a classic vehicle compare to a modern ...
4
votes
2answers
65 views

E10 petrol safety

I sometimes visit Finland taking my car, though I am not living there. There's a kind of petrol marked E10. Somewhere I've read that this kind of petrol can be harmful for some kind of cars (for the ...
2
votes
3answers
3k views

Why are multiple grounds in the engine bay/engine important?

On certain cars (perhaps even most? all?), such as the old Toyota MR2 turbo, there are multiple ground points. Some of them are described with pictures here: http://www.mr2oc.com/59-general-mk2-faq-...
10
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5answers
2k views

Car enthusiast beginner tool kit

What is a good place to begin building a kit/set up for performing your own service? For example: oil changes waxing detailing What are the best tools/equipment to start with?
4
votes
3answers
5k views

What are the safety sensors & cameras on those new windshield packs? (like Volvo city safety)

Many new models come with sensor & cameras on the windshield, like this Volvo: Although cars came from different manufactorers it seems that they all have pretty much the same pack - these 4 ...
33
votes
10answers
16k views

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

"If a jack can lift a load, surely it can withstand the load for extended periods of time?!" I've come across some conflicting ideas regarding this subject: The user guide for my low-profile ...