Revealing The Truth About Auto Start Stop: 3 Myths Busted! (2023)


Check out the merch store here it helps the channel greatly.

Video for auto start stop not working "vehicle charging"

So does Auto Start Stop Technology ruin your engine? Cause more engine wear? Cause premature starter or battery failure? The correct answer is NO IT Doesn't. It actually increases fuel mileage too.

#newtoyou #ford #fordranger


Hello, everybody good day, nice and bright, sunny out here, I'm bearded, Ford Tech.

If you're new to the channel, welcome if you're, not new to the channel, welcome back, please consider subscribing.

We are going to talk about three myths about auto start stop.

Does it really mess up your engine? Does it give you four poor fuel mileage um we're gonna talk about that.

A lot of people think that it messes up the engine.

So let's get into it and we're going to talk about the three mist.

Thank you all right.

Let's get into it.

Myth number one stop start uses more fuel.

Obviously the high pressure fuel pump back there.

Do you think it uses more fuel, it actually doesn't research from the American Automobile Association, very widely known.

That does a lot of research on automobiles, obviously found that start stop engines actually um resulted in a five to seven percent Improvement in fuel economy.

So that's actually pretty good.

That may not seem like a big big amount, five to seven percent, but it adds up over the lifetime of your vehicle.

So no they don't use more fuel and I'll talk about why they don't because, when all those start stop is, you know activated it shuts off fuel flow, so you're not burning fuel sitting.

Still when you're sitting in traffic and you're idling you're just burning fuel you're, not getting fuel mileage, you're just burning fuel, so you get poor fuel mileage by just sitting there.

Myth number two stop start systems damage your engine, the entire engine.

Uh, that's false! The argument comes from the fear of a cold engine like right.

Now my truck hasn't been running since yesterday morning, um, the stop start system doesn't work until your engine reaches a warm enough temperature that is actually controlled by the PCM that it it's got all these sensors and that it knows what the temperature of the fluid is um.

So it's not going to come on until the the engine.

Oil is warm enough.

So if you're in traffic and you're and your vehicle shuts off, like you, go up the Rope um and it shuts off the engine, oil is not going to cool down to a level where it's going to cause damage to your engine, so basically like a cold start, and then it's actually controlled by the PCM.

If you're stationary for a long period of time like you've, been running all day, um and you're sitting in a traffic jam um it's designed designed to restart automatically before the temperatures drop so- and this also has to do with battery voltage the temperatures of everything the Heat or the cooling in the cab.

If you have your steering wheel turned a certain way.

The grease stuff like that, but one of the main things is, is fluid temperature.

So it's not going to lose temperature enough where engine damage can occur and another cool feature that protects your engine um is it prevents all the oil from actually draining back into the pan? So as a result of that, there's still plenty of oil up here, there's still plenty of oil on the cylinder walls, and you know inside the cam journals and all that stuff, because all of it's not going to drained back into the engine.

There's safety features in here.

One of those safety features was to fail and then the auto start system is not going to work.

It is not going to shut off your engine.

That's it! Battery voltage has a lot to do with it as well, and you know a lot of people think.

Well, it's going to wear out my starter.

It's going to wear out the Pistons! Well, obviously, it's not going to wear out the piston rings or anything like that, because it doesn't allow the oil to drain back down.

It is not going to wear out your starter because the starter motor, the ring gear and the flywheel they do work more frequent, but they're actually built with higher specifications than a vehicle without auto start stop um the internals of the engine or not the engine, but the starter they're a little bit more robust, so they can actually take a beat and keep on going.

The starter I'm on is actually located down there.

Behind the oil filter, uh turbos, the turbos aren't affected and the buildup of soot in the EGR is actually minimized through engine management.


Further advances like dry Lubes on the engine, bearings and improvements to the durability of the engine, bearings uh.

It means they're, designed and they're built to withstand auto start stops.

So many stops.

Now all the stops start stop counter is actually in the body: control, module and I.

Think it's 10 000 starts and then it's going to have to be reset at some point.

Um one another one of the huge ones is: it kills the battery um.

It wears out your battery.

That's actually very false as well.

If you notice this, you saw me do a video replacing this.

This is the AGM battery.

It is not a acid-filled battery.

Okay, these auto start stop.

Vehicles actually have very robust batteries.

Uh, like I, said it usually requires AGM for all to start stop system and it has a high capacity on it.

Some cars actually have a separate battery that is used for restart of the engine and it won't use this battery.

It'll use a separate battery, um and also the computer.

The PCM will check battery voltage and state of health before it even shuts down.

So if it sees that there isn't enough charge like I did a video, why I replaced my battery, then the vehicle is just going to be left running now.

Remember I changed mine, because every time I would come to a stop and I would go to the auto start, stop system, it would say vehicle charging.

Now my battery was losing voltage.

My charging system was working fine, but my battery had some low cranking amps on it and the voltage wouldn't stay up plus it was cold outside, so it was taking longer for it.

So it was monitoring everything and that and the PCM noticed that the state of health or the charge of the battery wasn't sufficient enough to restart the engine if it shut off.

So it left the engine running to charge um.

So a lot of people that are having problems with the start.

Stop system like I I posted that short it usually has to do with battery voltage.

If you look on the computer, you may see a bunch of low voltage codes or somebody replaced the battery and didn't reset the battery monitoring system.

The vehicle knows the state of health, and if you change the battery out, it doesn't know that you change the battery because it still has kept into a memory, the old battery.

So you reset the battery monitoring system.

It recognizes the new health system.

Everything comes back online, so there you got it auto start.

Stop, does not ruin your engine, it doesn't ruin your starter.

It is an old myth and I can understand where people are coming from hey.

You know, first time you start up.

That's when most engineware occurs, yeah if it's been sitting all day or for a week or two without even starting.

It takes a long time for the oil to drain back down into the pan, say, for example, we have to do engine oil pans.

We can't just drain the oil and let the pan sit because it's still running out of the crank case, it'll still drip.

We have to let it sit for like 24 hours, but there you have it so, no auto start stop system does not mess up.

Your engine does not mess up your starter.

No engine damage is going to occur, feel free to use it.

If you don't want to use it, that's fine, too I love.

You guys and I'll see you on the next one.


What is the problem with auto start-stop? ›

The engine auto starts/stop system in vehicles may not work when the car stops for various reasons, such as a weak battery, a malfunctioning alternator, poor wiring connections, a false start/stop control module, or other systems being active (such as the air conditioning or audio system).

Can you permanently turn off auto start-stop? ›

While it is not possible to permanently disable this feature, you are still able to disable it. With a normal vehicle, stop-start can be paused by pressing the “A Off” button next to your car's gear shift. However, this does not permanently fix the problem like Autostop Eliminator does.

Why do people hate auto stop-start? ›

Because the “starter” is a massive electric motor powered by about 300 volts, the restarting process while the car is under way is so effortless that the driver usually can't even detect it without instruments. Some drivers do not like the abrupt stop/start action because it is a bit jarring at first.

Do all new cars have stop-start technology? ›

What does stop-start mean? Stop-start systems are fitted to the vast majority of modern cars – from superminis to supercars – in order to reduce emissions and fuel consumption. There are a number of different systems on the market, but they all fundamentally do the same thing.

What is the disadvantage of idle start-stop? ›

Disadvantages of Automatic Engine Start/Stop Systems

Another drawback of these systems is that they do require idling the main engine, creating additional hours of wear on the main engine and loading of the DPF exhaust system.

Is auto start-stop bad for gas mileage? ›

Depending on the style of driving, Start-Stop technology can achieve fuel savings of up to 15%. However, the effectiveness of the system depends on many factors, including the area of use.

Is it bad to start and stop your car multiple times? ›

One good example is when driving on a backed-up road in a major city. But the idea that starting and stopping your engine multiple times is harmful is also a myth. In fact, even if you're stuck in traffic and know you'll only move a few meters every few minutes, feel free to start and stop your engine multiple times.

Is it bad to always auto start your car? ›

People have come to believe that remote starting puts unnecessary strain on your car's engine, which is not true. Whether you're sitting inside of your car or remote starting from the comfort of your home, your engine will not react any differently.

Why do Fords have auto start and stop? ›

The system helps reduce fuel consumption by automatically shutting off and restarting the engine while your vehicle is stopped. The engine restarts when you release the brake pedal.

Why do new cars turn off at red lights? ›

The concept of the stop-start system is simple. It automatically shuts off the engine when the vehicle is at rest to cut fuel use and eliminate idle emissions.

Did Ford remove auto start-stop? ›

Auto Start/Stop Removal (52X), as it's officially known, will no longer be available to order starting this Friday, March 24th 2023. Both retail and fleet orders placed before this date will be built as ordered, and those opting for this removal will receive a $50 credit, as was previously the case.

Does auto start stop shorten battery life? ›

Vehicles with Stop Start systems require 5 to 10 times more engine starts when compared to their conventional counterparts. This puts a lot of strain on the vehicle's battery.

Does disabling auto start stop void warranty? ›

With pricing around $100, you can keep the auto start stop feature off without having to push the button each time. Auto start stop devices remember your preference for this feature and accomplish this task without voiding your vehicle's warranty.

Does Autostop Eliminator void warranty? ›

The Autostop Eliminator doesn't make any changes to your vehicle and therefore it can't void your warranty or any portion of your warranty.

Is it better to idle or stop and start your car? ›

Unless you drive a vintage, carburetor-equipped vehicle, you'll save fuel and reduce carbon dioxide emissions by turning it off. Some drivers think that idling uses less fuel than restarting, but our research has found that drivers save fuel and reduce emissions by shutting down for stops as brief as 10 seconds.

Does idle stop drain battery? ›

Decreases performance. Over time, idling can cause your head gasket, spark plugs, or cylinder rings to deteriorate and stop working. Drains car battery. Idling does not allow your battery to charge and causes it to strain.

Why should we avoid unnecessary idling? ›

Idling reduces your vehicle's fuel economy, costs you money, and creates pollution. Idling for more than 10 seconds uses more fuel and produces more emissions that contribute to smog and climate change than stopping and restarting your engine does.

How much gas does auto start-stop actually save? ›

Another question owners have is wondering if the start-stop system actually saves them any money. Modern engines don't use much fuel at idle, only enough to keep the momentum of the spinning parts moving and drive the accessories. Still, the EPA estimates real-world gas savings are in the 3 to 10 percent range.

Does temperature affect auto start-stop? ›

Stop-start won't intervene when the engine is cold. This is because the car's computer is sufficiently savvy to know that an engine is at its most efficient when it's fully warm. Therefore the clever computer keeps the engine running until it's at an optimal temperature.

Why do new cars shut off when stopped? ›

A vehicle start-stop system or stop-start system automatically shuts down and restarts the internal combustion engine to reduce the amount of time the engine spends idling, thereby reducing fuel consumption and emissions.

Is it bad to idle your car with the AC on? ›

As long as the engine is running and you aren't running low on fuel, you can keep your car idling with the AC on for as long as you'd like. . Running the AC with the engine off will also not produce cool air, since the compressor uses engine power to function.

How often should I start my car if I'm not using it? ›

Generally speaking, you should turn your engine on every week for at least 15 minutes. However, there is no hard or fast rule. Some cars may only be a few months or years old versus those that could be 20+ years.

Should you turn off your car at a red light? ›

The general rule of thumb is that if your car is stationary for less than 10 seconds it's not worth shutting it off. That does, however, leave big chunks of time when you are stationary when you can turn it off, for example: Waiting for your drive-through order.

What is the average life of an auto starter? ›

Average car starter lifespan

A car starter can give you around 80,000 starts before you should expect it to struggle, regardless of the mileage you drive. This is around 150,000 miles for some cars, while some starters can last the vehicle's life.

What are the cons of remote start? ›

If you're worried about wear and tear on your engine, then a remote starter is something to avoid. Frequently preheating and cooling your vehicle before you drive puts extra stress on your engine, which could shorten its lifespan.

Is start-stop same as hybrid? ›

The most obvious difference is that hybrid vehicles contain one or more electric drive motors that can propel the vehicle, usually while the gas engine isn't running, where an auto start-stop vehicle does not. This electric motor uses the same throttle input, but the motor is propelled by battery power alone.

What is the red light that blinks in cars? ›

This blinking red light in the car is more of a built-in alarm system for your vehicle where it could prevent someone from burglarizing your vehicle. This blinking red light can be referred to as the anti-theft or immobilization light.

Why does my car jerk when I stop at the light? ›

It is most likely caused by a faulty coil pack or a dirty throttle body. Either of these issues could be causing your car to jerk while stopped at lights. The throttle body is an essential piece of equipment that controls the airflow throughout your engine.

Why is my truck dying when I come to a stop? ›

Your vehicle can stop running or have a hard time idling for several reasons. But there are two main reasons: either you have an issue with spark or with fuel. Usually, when your car begins to sputter and then slowly dies, it's because it has lost fuel pressure. The most common reason is simply running out of gas.

Why do cars flash their lights at you at night? ›

Headlight flashing can let other drivers know of one's presence. Flashing can acknowledge the presence or actions of other drivers. Flashing can be a signal that the flashing driver is yielding the right of way, for example at an intersection controlled by stop signs.

How much fuel is wasted at red lights? ›

We used to hear people cite the myth that it takes more fuel to restart the car than it does to keep it running while you'r e waiting at a light. That's nonsense. 5 percent to fuel economy, give or take, depending on how much stop-and-go driving is done.

How much gas does idling use? ›

Idling uses up to ½ gallon of fuel per hour (although it varies depending on the type and size of the engine). It may not seem like much, but idling for a few minutes everyday can cost you several dollars per week. MYTH: Engines need to warm up by idling, especially in cold weather.

How do I disable engine auto start? ›

Some vehicles have a button to turn Stop/Start off for one ignition cycle. If the vehicle is equipped with the Stop/Start deactivation switch, you can push the switch to turn off Stop/Start. Stop/Start is turned off when the LED indicator on the switch is not illuminated.

What cars did Ford cancel? ›

Ford announced in 2020 that it wanted to focus its budget on the more popular SUVs that were new in the market, such as the Explorer and the rough and tough Bronco. The brand stopped production of all its sedans, which deprived people of the other two flagship models, the Ford Fiesta and the Ford Focus.

What is Ecoboost with start-stop? ›

The system is designed to help reduce fuel consumption and CO2 emissions by stopping the engine when it is idling, for example at traffic lights.

Can auto start cause problems? ›

Improper installation could lead to other issues.

If a new remote-start mechanism was installed by someone other than the manufacturer, you run the risk of having it installed improperly. This mistake can lead to other problems, such as a premature draining of your vehicle's battery.

Does auto start-stop have its own battery? ›

What is the difference between a Stop Start battery and a normal battery? Vehicles with Stop Start systems require a Stop Start battery. Conventional batteries are not suitable for such vehicles and attempting to use one would not only cause premature battery failure.

Is automatic start bad? ›

Whether you're sitting inside of your car or remote starting from the comfort of your home, your engine will not react any differently. Remote starting and running your engine before driving puts no more toll on the engine than if you were inside your car waiting for it to warm up.

Can remote start cause engine problems? ›

Remote starters increase engine wear and tear. This is a common misconception about remote starters. It's unclear why people are lead to believe this is the case, but it's untrue. The consensus among mechanics is that remote starters are good for your engine, especially for people with turbos or diesel engines.

Can remote start cause electrical problems? ›

There is one instance, however, where a remote starter could needlessly tax your battery. If your car did not come with a remote starter and you want to install an aftermarket model, improper installation could lead to issues with your battery and electrical systems.

Can you jump start from a stop-start battery? ›

Jumpstarting a car equipped with Start/Stop technology is not advisable as the battery used is specialised to that car. Sometimes, a modern car is used to jumpstart an older car, this may cause a power surge to the newer car, resulting in damage to the expensive electronic systems.

Why are stop-start batteries so expensive? ›

Higher Cost: Start-stop batteries are typically more expensive than traditional batteries. This is because they are designed to meet the specific demands of start-stop systems and are typically made with more advanced technology.

Do cars with stop-start have 2 batteries? ›

Most stop/start systems use a deep cycle aggregated glass mat battery (AGM). This type of battery requires different testing methods and shop chargers. Some systems use a second battery to handle non-starter loads so the customer doesn't notice any disruption HVAC or audio.

What are the cons of automatic? ›

  • Higher Maintenance Cost – Automatic transmissions are generally more complicated than manual transmissions. They will need more frequent and more expensive maintenance. ...
  • Less Control – Unlike manual transmission, automatic transmission offers the driver a limited sense of control.

Top Articles
Latest Posts
Article information

Author: Ms. Lucile Johns

Last Updated: 12/15/2023

Views: 5267

Rating: 4 / 5 (61 voted)

Reviews: 84% of readers found this page helpful

Author information

Name: Ms. Lucile Johns

Birthday: 1999-11-16

Address: Suite 237 56046 Walsh Coves, West Enid, VT 46557

Phone: +59115435987187

Job: Education Supervisor

Hobby: Genealogy, Stone skipping, Skydiving, Nordic skating, Couponing, Coloring, Gardening

Introduction: My name is Ms. Lucile Johns, I am a successful, friendly, friendly, homely, adventurous, handsome, delightful person who loves writing and wants to share my knowledge and understanding with you.