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37 votes
Accepted

Why does the rear of my vehicle sink when I apply the handbrake on a downward gradient?

With the handbrake on, the rear wheel is not able to rotate. When the foot brake is released the car will try to move forward. This will cause a rotational force on the rear tire. Since the rear ...
HandyHowie's user avatar
  • 25.4k
19 votes

Why does the rear of my vehicle sink when I apply the handbrake on a downward gradient?

When you stop the car using the footbrake, all four wheels are held stationary by the brake. When you apply the handbrake, this locks the rear wheels only (in most cars) - as you then release the ...
Nick C's user avatar
  • 28.8k
15 votes
Accepted

Manual Transmission - Why Can't I leave in gear at Light

Why can you not just shift to first and use the brake to keep the car from moving like all automatics in Drive, without touching the clutch? In a manual gearbox, the clutch (when you release the ...
Hobbes's user avatar
  • 4,412
13 votes
Accepted

Brake have failed. Alternative means of braking

No. For (at least) three reasons: It's not safe. You're using the transmission/clutch to slow the vehicle down in a manner it wasn't designed to do. You're destroying your clutch. You state you ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
6 votes
Accepted

How would you stop if the ignition switch failed while driving?

The brakes should still work, but without power assist so they take more force. Same for steering. I would shift to N and then brake while heading to the shoulder. I had a K1500 Blazer of about this ...
jxh's user avatar
  • 148
5 votes

Most reliable way to stop an automatic with a stuck throttle

I would think that you'd want to impose the largest load that you can on the engine, probably in the highest gear you can get into, pull over and then shut the engine down. In real life, in traffic, I'...
dlu's user avatar
  • 14.5k
5 votes

Most reliable way to stop an automatic with a stuck throttle

The safest option for the vehicle is to turn the ignition switch to off, protect the engine, then turn the key back to "on" without turning the engine back on, to prevent steering lock. Since you ...
tlhIngan's user avatar
  • 12.2k
4 votes

Proper way to stop auto transmission car

You may not need do it one way or another, but the correct habit would be to stop and then Park the vehicle before turning it off. Why? Well, you're not doing any damage making the selection on the ...
Steve Oakes's user avatar
  • 1,096
4 votes

Proper way to stop auto transmission car

You may not have a choice. On many "button cars" you cannot just kill the engine while the transmission is still in gear. This is a safety feature to prevent you from bumping it and turning off the ...
cdunn's user avatar
  • 9,296
4 votes

How would you stop if the ignition switch failed while driving?

In nearly all situations, the way you stop if the ignition switch is the way you stop if the ignition switch is working: you stop pressing the gas, and hit the brakes. It's literally that easy. ...
Cort Ammon's user avatar
3 votes

How would you stop if the ignition switch failed while driving?

The brake booster will support a few pumps so use 'em sparingly if in such a situation. After that it'll get harder depending on the weight of your car. An MPV will barely slow down without booster, ...
Bart's user avatar
  • 2,954
3 votes

Should I stop the engine, on a daily short trip?

Should I stop the car during that 5 minutes stay at the kindergarten? I leave it running, just to get the oil / coolant temp high. Idling isn't a great way to warm the engine up - since there's no ...
motosubatsu's user avatar
  • 10.1k
3 votes

Is it bad to start and stop engine without driving?

If this is all that happens for months on end without any real driving, then yes, it would not be good for the car. However, if it is getting taken out and driven say once per week, there's no real ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
3 votes

Most reliable way to stop an automatic with a stuck throttle

Here's my two cents. This happened to me last week so the event is fresh in my mind. don't panic put it on neutral thus separating the connection between the engine and the tranny shut off ignition....
goodcat's user avatar
  • 349
3 votes

Most reliable way to stop an automatic with a stuck throttle

The technologies are going forward and any decent car should be able to stop a roaring engine with a brake pedal. However, if it doesn't work, you have to switch the ignition key off, and leave the ...
Arturs Bolsunovskis's user avatar
2 votes

Most reliable way to stop an automatic with a stuck throttle

Even in the Toyota cases, it was well documented that the only thing a driver needed to do was shift into neutral, and the car would stop accelerating. The situation you mention is quite the extreme ...
Cort Ammon's user avatar
2 votes

Manual Transmission - Why Can't I leave in gear at Light

The advise to put the transmission in neutral at the light, and then release the clutch has been around for ages. There are arguments on both sides of the fence. I used to do that all the time with ...
mongo's user avatar
  • 2,115
2 votes

How to correct brake pedal click from the interlock solenoid on a Nissan Titan

I think your best bet would be to isolate the shift interlock control module from the brake switch using a relay. Looking at a pin voltage chart you can see that the park position switch in gear ...
Ben's user avatar
  • 10.7k
1 vote

Is it bad to start and stop engine without driving?

Unless the car is given a long drive or there is a battery charger connected, this will result in a flat battery fairly soon. We used to say a journey of 7 miles at reasonable speed was needed to put ...
Solar Mike's user avatar
  • 34.6k
1 vote

Should I stop the engine, on a daily short trip?

As an longtime owner of a DPF diesel I have the following thoughts about your question: Both DPF and engine don't like cold idling (wear on the engine due to cold oil, acidic combustion byproducts ...
Martin's user avatar
  • 8,458
1 vote

Should I stop the engine, on a daily short trip?

The real issue is that short trips will not allow a full DPF cycle, and your car will continue to attempt to run a cycle until it is able to complete a cycle. This may result in poorer fuel economy. ...
mongo's user avatar
  • 2,115
1 vote

Does putting your car in park during extended stops during trips prevent transmission from overheating?

The transmission will get hotter if it is working at maximum, such as towing a trailer uphill, that will be when the transmission cooling system will be needing to work at maximum and, if the cooling ...
Solar Mike's user avatar
  • 34.6k
1 vote

Why does the rear of my vehicle sink when I apply the handbrake on a downward gradient?

It's simpler than that. Your handbrake is actuated by a cable or sometimes a linkage. That linkage is applying a fair amount of force to set the brake, because the handbrake lever has a lot of ...
Harper - Reinstate Monica's user avatar
1 vote

IMPULSE Momentum theorem and stopping time of a car

Well, 2 things: momentum is always conserved in collisions. It's useless unless you are hitting something. Impulse, we can do something with. Impulse is 2 things: change in momentum force * ...
tlhIngan's user avatar
  • 12.2k
1 vote

Most reliable way to stop an automatic with a stuck throttle

Yes, you can change the gear to neutral at any speed. The neutral is a safety feature to disconnect the engine from the wheels. It is similar to the clutch on manual transmission cars. On a modern ...
juhist's user avatar
  • 14.6k
1 vote

Proper way to stop auto transmission car

The correct terminology is "to park the car". This is what I've been taught on an automatic transmission: Come to a complete stop in "D". Put shifter into "N". Apply parking brake, release service ...
Alex's user avatar
  • 186
1 vote

Proper way to stop auto transmission car

If the car is fully stopped then either way is fine. Neither will cause damage to your car. I however would recommend getting into the habit putting it into park first then cutting the engine because ...
rviertel's user avatar
  • 1,169

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