How Does A Gas Pedal Work?

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How does a gas pedal work? What happens when I push on the accelerator pedal? This video explains the mechanics of a gas pedal, which utilizes a throttle cable to pull on the throttle linkage, opening the butterfly valve within the throttle body, allowing in more air.
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4 окт 2024

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Комментарии : 261

@Mech.Masters 10 лет назад

U r a legendary person.....good work dude

@JamesAutoDude 8 лет назад

I wish they would of renamed it to an "air pedal", because explaining this to older people who are used to a gas pedal (carburetor), they just don't get it at all.

@jonfrost885 7 лет назад

James Erikson for mechanical, technician, and engineers,, the right term for that s "acceleration pedal,, he just used the term gas pedal because its the common, newcomers can easily understand what and where is it, simplicity applied.

@MePeterNicholls 6 лет назад

yeh, in the UK we call it 'the accelerator'

@Derpy-qg9hn 5 лет назад

tbf air is gaseous :P

@jonfrost885 7 лет назад

the gas pedal is manipulating AIR for the engine's intake and the various sensors communicate with ECU to pump more fuel, hmmm... therefore the "GAS" pedal isnt manualy pumping fuel,, you just requesting to ECU to pump more and meet the right fuel/air mixture ratio.

@kentpatrickparilla4807 7 лет назад

Top Sy Krettes how about carburetor

@ryans413 4 года назад

Kent Patrick Parilla Same basic thing only difference is there’s always gas in the bowl so pumping the gas pedal back on older vehicles actually helped to start but in fuel injected cars pumping the gas pedal dose nothing at all

@davidcanales975 11 лет назад

you have such a good grasp of this stuff - many people can talk all day and never get there. It takes someone with an outstanding grasp to be able to explain so quickly, simply and thoroughly - fantastic work man! I can see your mechanics side and your engineering/science side as well.

@steelbosgrove8446 11 лет назад

i love how simple you make things , its like they wont be unlearned or forgotten either !

@EngineeringExplained 11 лет назад

That's a good question, just comes down to chemistry. I hope to make a quick video on this eventually. Basically you go from C8H18 (or other hydrocarbons) + O2 + N2 and then you react to form CO2 and H20. When you balance it out, it comes to about 15 parts air to 1 part fuel.

@SuperSaiyanDarKnight 11 лет назад

M older brother is a EE and he showed me your channel. Learning a lot about cars, you are doing an outstanding job explaining how things work on cars

@muhammadamir-fq5nl 7 лет назад

i watched a number of videos to learn about the working of a gas pedal but i think this one explains the best...

@stamcent 4 года назад

Been trying to find this out a long time now. Finally I lucked on to this video

@EngineeringExplained 12 лет назад

Yep! I'll have one up in early December!

@EngineeringExplained 11 лет назад

The gas pedal is simply attached to a potentiometer, which when pressed injects more fuel. Diesels have a large band of air/fuel ratios for which they will work.

@MsShoaib123 10 лет назад

You are my tutor you sure do help a lot

@thatciggaweed 11 лет назад

ive only recently starting watching your stuff but i have to say im fully impressed. theres lots that I already knew and lots more that i thought i knew but it turns out I only had a small/non existant grasp on. you really are a great teacher man, its a joy to watch and i find so much more entertainment in learning this stuff and bieng able to apply it or at least talk about it myself than I ever will watching television. keep up the good work brother!

@EngineeringExplained 11 лет назад

By allowing more air it increased the pressure difference in the carburetor, thus forcing in more fuel. But what you are adjusting by pressing the gas is how much air is allowed in.

@SamnissArandeen 10 лет назад

Why do you keep calling the throttle cable "throttle wire"? Wires are there to conduct electrical signals. Cables are for mechanical actuation. It could be confusing to newcomers trying to learn from you. :)

@EngineeringExplained 10 лет назад

Glad you're here to help all the newcomers.

@autnoch3016 7 лет назад

Actually wires can be to carry electric signals or just thin pieces of metal.

@qtsa6828 5 лет назад

How about getting in front of a camera and spend the time editing a quality video like this instead of complaining.

@snickerdoooodle 5 лет назад

The definition of a wire is: "metal drawn out into the form of a thin flexible thread or rod" Sounds fine to me. The definition doesn't say anything about requiring conductivity

@stamcent 4 года назад

Thanks for taking the time to do this

@rootsandvulture 12 лет назад

Great videos! I've just subscribed and am working my way through them. Very helpful to show it in real life at the end too.

@EngineeringExplained 12 лет назад

Good idea, I shall add it to the to-do list!

@Dan.U. 9 лет назад

This is how the accelerator works on a Gas engine (though I didn't notice you mention that either in video title or in your description). I came here trying to find a video that shows how an accelerator on a diesel engine (Drive by wire throttle with a turbo set up) works. Can you please upload a video on that? Thanks

@automobile1994 8 лет назад

Very nice video but may i ask you if the gas pedal is connected to the throttler body and at the same time the throttler cable? so the gas pedal is connected to 1 lever and 1 body?

@EngineeringExplained 11 лет назад

You are correct, but how much you open the throttle ultimately is what restricts the total amount of air coming in. Even if your cams open up the valves a huge amount, if the butterfly valve of the throttle body is closed, not much air will be going in (the car will not accelerate without any throttle).

@maferafas96 9 лет назад

I came to this video cause I thought that was a sarcastic explanation of the song "gas pedal" But now I'm learning how gas pedals woks and I can say that it's really interesting btw. Good video

@yungnerd1474 8 лет назад

Lol same

@EngineeringExplained 11 лет назад

Thanks Mike!

@EngineeringExplained 11 лет назад

It's designed so that the proper amount of full is "injected" as the pressure difference of the venturi increases/decreases. Check out my video on carbs.

@dineshkarthikeyan9775 8 лет назад

Really awesome...Keep Going....Request for a video in gearbox upshifts and downshift arrangement along with shift efforts...

@SebastianH.O 3 года назад

Great video. Really learned a lot. Thanks

@EngineeringExplained 11 лет назад

I should have a video on O2 sensors up either this week or next!

@shivasankarCva 10 лет назад

That was really the best explanation i've seen! thank you.

@EngineeringExplained 10 лет назад

Very welcome, thanks for watching!

@AlanGoswami-nz9lg 5 лет назад

VERY NICELY EXPLAINED !!

@MrToweleySlowMo 11 лет назад

Great video. I really like the visual demonstartion at the end. But why is the air fuel ratio 14.7:1?

@bigtomfrost 11 лет назад

Great videos! I don't know anything about cars, but it's fun to learn

@paraescucharrap 6 лет назад

Thank a lot for the simple and well explained video

@nerdkidleo 12 лет назад

this is 150 percent awesome explanation

@JohnDoe-bk4ci 6 лет назад

What happens when you are at a constant speed and let go of the gas and don't press the brake pedal? How does the car slow down? Friction or are the brakes steadily compressing the rotor to thus slow down and eventually stop.

@SyedWajihHassan 12 лет назад

As a tip, in the followup videos for throttle, try to cover; lean vs rich mixtures and how can a driver tell what is going on in his/her carburetor / EFI system.

@alx_8563 Год назад

yea

@EngineeringExplained 12 лет назад

My girlfriend's car is electric and yeah it seems a bit more responsive, but not when you let off. It seems to take a bit longer to close the throttle than my car. I'll have a video on it in a few weeks!

@EngineeringExplained 11 лет назад

Thanks, happy new year!

@g0ats3cks 12 лет назад

If you do another video on this, can you explain how the pedal works on a diesel since there is no butterfly valve on a diesel.

@ayushvijayvergiya185 11 лет назад

hey , can you please upload a video to explain how A/F ratio is regulated in diesel engine.

@Jabid21 11 лет назад

Correct me if I'm wrong: Many diesel engines used in cars come with a turbocharger. Would a little bit of boost help in this matter?

@korewilson7161 4 года назад

Thanks mate, I was curious and you explained it super easy

@EngineeringExplained 12 лет назад

Some form of hinges, or, if you're referring to drive-by-wire, I will have a video on that up soon.

@EngineeringExplained 11 лет назад

Typically diesels are direct injection. By pressing the gas pedal, you increase the amount of fuel injected (rather than allowing more air in. Thus, pressing the gas pedal decreases the A/F ratio, increasing power.

@DavidTorres-tw8kv 4 года назад

Great explanation

@صديقرايت 11 лет назад

I've never seen a auto comfort cooling video from you I need to listen to some in the future Inshallah.

@EngineeringExplained 12 лет назад

Great idea, considering the differences.

@iNinjeek 6 лет назад

LOL awh this video is hella cute. I like how the video just cuts off in the end aha. You improved a lot over the years in making vidros aha. Keep up thd good work! The video was really easy to understand and picture was on point :)

@rimcogr8450 2 года назад

Great job! your video is so helpful and simple at the same time. Congratulations

@gamegeekx 7 лет назад

You are too smart that I can see you as a person who make new cars out of scratch, by yourself.

@EngineeringExplained 12 лет назад

You are correct!

@EngineeringExplained 12 лет назад

Excellent! Let me know if you have any questions.

@ricardodominguez5470 10 лет назад

You missed the IAC valve, but everything else is great, greetings from México

@kirtsuna269 Год назад

I know I’m 10 years late but do you prefer top mounted gas pedals or bottom mounted pedals aka (Organ types) or (Suspended types)

@UltraGamer77 11 лет назад

Hey man! You should make a video about drift. Like how it works and what happens when drifting.

@EngineeringExplained 12 лет назад

Yeah I could tighten it just a bit, wouldn't hurt. But it can still open all the way so it's no big deal really.

@a4a4q4 11 лет назад

Please explain the water injection system for the cars

@kowalskielbeh7005 11 лет назад

I have been watching your videos since yesterday and they are really informative and simple to watch. I am going to watch all the videos and wait for the wed video .=) Thanks man.

@CHzwaves 4 года назад

Great Explanation Buddy! 😎

@AsadMulla 12 лет назад

I can hear the the engine sound go slow and then as the rail re pressurizing and then I know its ready. Does the low pressure pump only come on during the starting phase (to prime the system) and then the high pressure pump takes over?

@Satch024 7 лет назад

hey. Should the butterfly is very slightly open or totally closed?

@chetankrishna08 12 лет назад

Great video. Can you explain how power brakes i.e., vacuum assisted brakes work. Thank you.

@steve12121 8 лет назад

How bad is flooring the car when it's at operating temperature? I own a 2008 Cadillac DTS and i'm always seem to floor it a little too much haha. I would say I floor it about 4 times a day at least and some people say it does wear on the components but how much does it wear on the components? Some say it's good to floor it to get rid of excess carbon but just how bad is it to floor it at operating temp? I also baby it until it gets to operating temp only reaching max 2500 rpm usually under 2000 rpm until it's warm. -Thanks

@drinkingthatkool-aid3193 7 лет назад

Steve Car engines are pretty strong. Flooring it a few times a day at operating temperature shouldn't do any harm long term as long as regular maintenance is obtained.

@Phen0mable 8 лет назад

I think I have faulty gas pedal. When cruising in 4th or 5th gear with gad pedal slightly pushed down my engine doesn't keep constant rpms. Can I try to disassembly gas pedal and spray it with contact cleaner ??

@saye2k10 7 лет назад

I’ve learned a lot from you One small problem I have though, when I press my gad pedal nothing is happening with my car. Can you help me?

@EngineeringExplained 11 лет назад

Ahh, yes, sorry for the confusion. I simply use fuel injection for most videos since that's what's current these days in cars. Carbs are still used in some small engine applications, but they also seem to be phasing out.

@Robert61494 10 лет назад

So how did it work before the sensors? How did the correct amount of fuel get injected? Was there like a system that linked the gas pedal/throttle linkage to a valve or something that controlled the amount of fuel injected?

@EngineeringExplained 10 лет назад

Carburetors can be dialed in to match the amount of fuel to the amount of air: Carburetors - Explained

@MUMS007 10 лет назад

It wasn't injected , it was basically sucked into the engine. This was done with "The carburetor". These worked on a principle called "the venturi effect". The same way air flowing by the top of a chimney causes smoke to be pulled upward. Pistons moving downward , on the intake stroke , caused a vacuum. This vacuum was below the carburetor. When the Carb was opened , the venturi effect basically sucked the fuel from a reservoir in the carburetor. The reservoir worked the same way a toilet tank works. As soon as the fuel & a float dropped to a certain level, a valve opened up and fuel flowed in to replace it. It was primitive but worked very well

@silvermolotov 12 лет назад

Good video keep it up. BTW is that honda or acura u got there ? I could tell from the intake manifold.

@shimaalcarrim7949 6 лет назад

Awesome channel buster

@Blu0tuth0ninja 11 лет назад

Could you explain that more? Is it all computer operated now? What about older, mechanical diesels?

@desertfox2020 12 лет назад

You should cover EGR. Personally I know what it does but I don't exactly know how it works.

@abdullahalmullahi850 11 лет назад

Man I would like if u will talk about O2 sensor because I search about this sensor in your channel and I didn't find it.

@atiqgulam1903 7 лет назад

Hey . I am curious when you start the car the engine is running how comes the car doesnt move until you accelerate leave a manual car i am talking about automatic what systems do they use. Planning to make a go kart without gears what should i do to make it move only when i want to

@JoeyMe 12 лет назад

nice video mate, maybe you can explain in the future videos also systems that do not use throttle body at all, like the new diesel engines or bmw's valvetronic system.

@joschomo1010 10 лет назад

such great vids, this is all i do, now i know every little knock and cranny And for a future vid, what about a mirror image turbo, or is that just a twin turbo, if its not, could you explain that,thanks

@nithanthasd3005 6 лет назад

how do you relate the automatic fuel control by the governor and the accelerator? how do these coordinate

@Gred079 12 лет назад

could you do a explanation of the exhaust system?

@KillerZero259 12 лет назад

great video, but when are you going to expand onto math and physics?

@formula1nh 12 лет назад

Fantastic! Another good video, in fact all videos are good.

@hnandra1 11 лет назад

veyry good at explaining stuff

@SadisticOutcast 12 лет назад

Great vid as usual! What car is this?

@johndeeredipper2005 11 лет назад

Great videos! Can you explain how the oil is used in a gas/diesel engine?

@aman.aman.7991 7 лет назад

excellent video great job

@Carrera911Fan 12 лет назад

can you explain how a clutch pedal works ? i broke my cable on my first car years ago and always wondered how it worked and how it might have broken

@djalexromero4818 8 лет назад

I have a 2006 ford mustang v6 with unresponsive gas pedal it turns on and stays on idle normally but no response at all on gas pedal do you have a clue what it might be?

@boilerdam 10 лет назад

Well explained but I guess even at this primary stage, there should be a bit more in detail regarding negative pressures created in the intake manifold sucking in outside air 'coz nothing in this video explains what is actually making the air in. What one might construe from this is that a valve opens and air is allowed to flow freely which is similar to opening my house's door and air flows in but there's a force involved in an engine that is actively sucking in air.

@EngineeringExplained 10 лет назад

If you've watched my video on engines before this, it should be fairly clear. Cheers

@iLykHardsytle 12 лет назад

Can you also make a video for Drive By Wire DBW? i'd like to know more about that. :) thanks

@EngineeringExplained 11 лет назад

I suppose I could, yes. I'll look into it.

@EngineeringExplained 11 лет назад

Thank you!

@chris222233 9 лет назад

Can an aftermarket Eco gas petal be installed into any vehicle? I drive a car that had Eco mode, all it did was stiffen the petal when pressed. It helped by preventing me from mashing the petal down. ( I drive slow, but would like a petal that can do it for me) Is there a aftermarket petal that can do that? (I drive slow because I pay for my owe gas) thank you for posting!!

@AsadMulla 12 лет назад

Hi My van has a fault which I believe is the injector leaking. If I start the van after a rest period (about 5 hours) the van will start but I can accelerate for about 30 seconds. Its a common rail high pressure direct injection. I think because one injector leaks the rail pressure drop so the ecu doesn't allow the van to rev until it reaches the right pressure. So could you explain the fuel supply system. Is the fuel rail meant to hold the pressure when the van is switched off. I can hear the

@minenhledlamini9040 4 года назад

Please make a vid of what happens if you keep on pressing the gass while the car is off

@gambart2002 8 лет назад

great video, thanks

@mr.t3520 3 года назад

so the throttle wire basically opens an air faucet?

@AlphaOmegaJesus 4 года назад

Nissan N16 Sunny 2003 I have a problem with RPM - it's completely unstable The Throttle nail has been moved - and the idle sensor has also been moved How do I return the Throttle nail to the original factory position?

@albertmontes11 4 года назад

Thanks very informative!!!

@izumi937 7 лет назад

Good explanation, but seems very fragile for such an important task!

@wdavis6814 6 лет назад

Nice Eva pic.

@Antoniocool86 12 лет назад

Good videos. Looking forward to future videos.

@EngineeringExplained 12 лет назад

Yeah, but it's really just a difference in where my gas pedal becomes useful. I suppose I should tighten it. Doesn't make too much difference honestly, as long as it can still open all the way.