Starting the engine without clutch and/or waiting for glowplug?

You are trying to "cut corners" by not understanding, or not wanting to understand things thoroughly.

What's wrong with doing what you were taught in driving school? Can you give a solid reason? Or are you more worried about "other people" and their (sometimes bad) habits?

The engine starts easiest with glowplugs hot. So don't you think this would make life for your starter easier? It's not about damage to the glowplugs.

Many diesel engines will start easily when warm from recent use or during warm weather.

What does the owner's manual say about starting the vehicle?

Disengaging the clutch when cranking is about safety. Don't you have an extra second or two to be safer?

Why stop at all stop signs? Everybody else doesn't.

First off you are speaking of a diesel engine. You need an education on how a diesel engine works. Spark plugs are used in gasoline engines to ignite the fuel. Diesel engines don't use spark plugs, as they ignite the fuel by compressing it. However, they do have a plug called a "glow plug" which is essential to using a diesel engine vehicle in cold weather. A glow plug has many important functions. The most important function of the glow plug is to help warm the engine during cold periods. The diesel engine requires a lot of heat to operate consistently, as the diesel fuel will only fire if it is compressed heavily. This isn't a problem during warm periods or if the engine has been running awhile. However, if your diesel engine has been sitting around in cold weather for a long period of time, the engine block will get very cold. The cold engine block will suck up all the heat when you try to start the engine, causing it to struggle to start. A glow plug sticks just a bit out into the firing chamber. It will use battery power to heat itself up excessively, which will then cause the rest of the engine block to warm up. A glow plug can cause the engine block to heat to 800 degrees Celsius, greatly improving the engine's ability to start. Glow plugs also help reduce emissions at startup.

As to pushing in the clutch before starting an engine that is just for safety. In the past vehicles could be started in gear so the rule was always push the clutch in. Todays vehicles have a safety feature that prevents them from starting in gear. But what if that safety feature fails? Common sense tells you to push the clutch in before starting a vehicle.

Not sure about glowplug. The diesel I used to drive would not start without it. You may find that you don't have to wait the full time. Especially if the engine is already warm. Experimenting should be fine. Just don't crank it excessively every time you start it.

Clutch: if you don't press the clutch each time, one day you will discover the transmission is not really or fully in neutral like you thought and this can be dangerous as the vehicle can lunge forward unexpectedly. It is best to both have the clutch pressed and have the transmission in neutral for redundant safety.

You wait, the light goes off, you crank, if it starts, it runs.

if not, you wait again.

If you have too much of this required ? you best tell a diesel mechanic

before damaging the glow plugs.

If it starts easy, no worries.

If you overheat a starter, you pay for another.

If you fail to change glow plugs and thermal time switches at the interval,

You end up with engine repair.

What engine is it? where is it used? why dont you know?

if it cranks in gear with the clutch out, you damage the vehicle.

and what it runs over. Set the brake when you park or shut down.

They use the neutral circuit to make you disengage the clutch

Why dont you know that?

If you drive a vehicle made before these systems you would have been taught.

If you drive a vehicle that operates without them you take precautions.

You pay for what you break.

That could be your path to learn.

Since you are currently a subversive. By your questions.

Diesels have plenty of torque,

That is why they tell you and keep telling you.

Newer systems are for women and woosies.

They operate easier so they can take the jobs.

save fuel, and reduce emissions.

If you subvert safety and cause wear and tear? You will end up

paying. Learn the economical methods and be safe.

Or you might not be that vehicle's driver.

Without your vehicle information there are numerous more specific possible answers.

Think simply about the mystery vehicle you drive.

The engineering is for safety to preempt the mistakes people can make.

They have to be trained.

A working diesel vehicle that performs work for business is a powerful valuable tool.

It is not designed for recreation.

It is expensive to repair.

The damage you can do comes from not reporting problems.

Glow plugs suffer the time they spend heated.

Whatever control is in use gives them cool-down between cycles.

This keeps them from exceeding max temp.

pretty simple.

Computer controlled systems have evolved beyond the older scenario,

but the parts and their way of heating the cylinders are the same.

Cranking will not hurt the glow plugs.

no damage from driver error there.

Simple enough?

Reading the vehicle's manual. That's

Driver's responsibility. why? when he damages expensive parts or systems, they may not be covered when driver error is cited.

Why are engineers thinking the way they do?

Experience.

The conditions vehicles get into and their possible distance from skilled help has to be forethought and provided for with careful wording, as idiot proof as it can get.

They tell you what is needed to protect the engine and its subsystems.

Your circumstances may not always be the worst.

Experience you gain after you pass a drivers test will prove to

be exponentially different as you gather knowledge.

They protect themselves, the vehicle, and the dealer with their recommendations.

They do not explain themselves always, would you?

You could not begin to know till you begin to learn how much there is to know.

I hope you dont have to find out. and the mystery vehicle starts in every situation.

AAA can be a good idea. if you have the same one for years and have

no regular maintenance schedule.

I watched a man treat his diesels just any old way he could get away with, I helped him each time, get it started by correcting overdue maintenance. That jerk should not have any car.

it is just unconscienable, what diesel owners may do sometimes.

He did not pay for parts or labor and complained the whole time.

He would rather take a whole vehicle out of service to find parts for his own, than pay what the companies charge for them.

He lost his car to a shop where he refused to pay, and tried to blame them.

dont be like him. following the directions, that is considered intelligent.

Some types of substances burn holes in the brain matter, many of them are illegal, or controlled for medicinal use. They can destroy cognitive function, they can destroy a persons conscience.

He can lose his ability to read and comprehend the answers to his questions. When he becomes violent, they put him in a straight jacket

and take him to a controlled environment where his brain can repair itself. You are free to call them for help. eventually the jail system might have to send you there on your present course.

Was that mumbling?

It would be hard to find any 1996 or newer car in the USA without a clutch safety switch, so you have to press in on the pedal to allow starting. My Dodge diesel has a glow plate under the throttle body. I only wait for it when it's cold, although sometimes I forget and it still starts.

Modern manuals will not crank if the clutch is not pressed.

Modern diesel engines have high speed glow plugs. Most again wait then crank when ready.