DIY - How to Fix a Vehicle Losing Power When Accelerating!

In this video, Jake covers a comprehensive list of causes & solutions for a vehicle losing power when accelerating. This is probably one of the more frustrating issues when it comes to any vehicle. Hesitation during acceleration, losing power while accelerating, losing power when accelerating, sluggish acceleration, whatever you want to call it, we’ve got you covered. Usually, when vehicle owners sense their vehicle losing power, they prepare for a hefty repair bill. However, this may not be the case for this problem. We hope this guide assists you in DIYing this issue and not spending $$$ at a shop for diagnosis.
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8020 Media owns and operates a portfolio of content websites and eCommerce stores in the Automotive industry. We provide over a million monthly readers with high-quality automotive content, focused predominantly on technical and performance modification guides.
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00:30 - Overview of the video
00:47 - What creates acceleration in a vehicle?
01:51 - Air intake issues that cause rough acceleration
02:00 - Clogged air filter
02:53 - Dirty mass air flow sensor
03:59 - Fueling issues that cause slow acceleration
04:34 - Clogged fuel filter
05:39 - Clogged fuel injectors
06:23 - Combustion issues that cause poor acceleration
07:17 - Exhaust issues that cause sluggish acceleration
07:33 - Clogged catalytic converter
08:44 - O2 Sensors
09:29 - Other possible issues that could cause a loss of power while accelerating
10:28 - How to fix your car from losing power while accelerating!

[@tko6196]

Im almost 105 years old and im sure that after this explanation even I can fix the issues on my lifted Tacoma..Thank you young man.

[@8020Media]

TK - Thank you for the feedback! We hope it helps.

[@mandezadamz4556]

What about egr valve stuck open Can it cause the same problem?

[@8020Media]

M - For losing power?

[@mandezadamz4556]

Yes i mean recently i ve got a P1401 on honda accord 2005 ictdi 2.2, and after ive cleaned the egr valve (it was closed), the check engine light turned off. But the car is extremely slow i can't go up hells more than 1st gear (No check Engine light) Could it be a stuck open egr valve? Or bad injectors ? Still i ve tested the 4 injectors they were getting much more returns yet, the engine was so powerful. The problem occured only after egr valve cleaning

[@8020Media]

M - Thanks for sharing your experience. This sounds tricky. It certainly sounds like an exhaust issue.

[@mentalequity2187]

Trying to find an available mechanic to diagnose this issue has been difficult for me so this was a huge help in pointing me in the right direction! Thank you so much for the thorough and well explained video!

[@8020Media]

Mental - Thanks for the feedback! That's our goal with all of our videos.

[@jeffreychigwenjere6043]

One of the most detailed but simple presentations i have ever seen on youtube .Thank you

[@8020Media]

Jeff - Thanks for the feedback! Hope it helped out.

[@sammymashiloane6659]

😊😊😊😊😊😊😅😊😊😅😊😊😅😊😊😊😊😊😊😊

[@charlesshelton7749]

q

[@ruthlangston4252]

​@@8020Mediam😂😊😊😊

[@TaiminHikarip]

​

[@RicardoRamirez-sn5wq]

Your content offers great value, As a 70 yrs grandma I feel more confident after watching your video; It is honest thorough and to the point. Well done young man, I wish you great success in life and I send you many blessings.

[@8020Media]

Thank you so much for the feedback. We're glad it could be helpful!

[@Amanebcu]

Very good

[@8020Media]

Thanks for the feedback Bethel!

[@PoochiE2]

Wonderfully comprehendible and instrumental in helping me to draw up a history and sequence of events leading to my acceleration and rough idling issues! My mechanic will be thrilled when I bring the car in, as I am! Thank you!

[@8020Media]

Poochi - Glad to hear! Thanks for the feedback. We also have a rough idle video if that helps too: kzbin.info/www/bejne/eJq8pKSIf6h_nqc

[@denisewelch1820]

Jake I have watched a lot of videos and this is the first comment I have made on you tube...This explained so well the breakdown of problems that it could be I think I might just be able to run it down. Thanks for your time ,effort and patience

[@8020Media]

Denise - Thanks for feedback! We hope you find it helpful in your diagnosis.

[@clemguy884]

Legit this is a phenomenal presentation. Please make more videos.

[@8020Media]

C - We really appreciate it! We're going to continue to make more DIY videos. Make sure you're subscribed to stay in the loop.

[@geoffp1292]

My car is experiencing both inconsistent idling,& loss of power. Your video will certainly point me in the right direction to help find the cause of this problem...Thankyou! 🚘🔧

[@8020Media]

Geoff - We hope it helps! Keep us updated.

[@joneshartleyjonesthemaster3185]

This the coolest explanation ever, keep up with the good job man.....

[@8020Media]

Thanks! We really appreciate it and hope you found it helpful!

[@5.7_Angel]

Bro thank you for this video! This video was explained very well for me to understand. Now all I gotta do is follow the steps one step at a time and I can now work around and see what I gotta do now to better help my acceleration problem. Thank you !

[@8020Media]

TNO - Thanks for the feedback! We hope it helps.

[@5.7_Angel]

@@8020Media well I tried cleaning my air filter and it was going good until I ripped a whole into it😂 so I just went to autozone and got a new one and I also don’t have a MAF sensor so I guess I’m already going down the list quickly 😂

[@marklopez555]

This is a great example of how to make a video that even the none mechanic can understand , good job .I'll definitely give you a thumbs up .

[@8020Media]

Mark - We appreciate the feedback! Our goal is to assist anyone regardless of automotive skill level.

[@khumbuzadibandlela6219]

This is the best end to end intergrated explanation of inputs turned to outputs with all the sensors involved and relevent codes involved. Great work.

[@8020Media]

Khumbuz - Thanks for the feedback and we’re glad we could help!

[@anthonywiseman1132]

​@@8020Media u u

[@1999ATL]

Thank you!

[@anagy3718]

Pretty much explains everything I was looking for

[@8020Media]

Glad you found it helpful!

[@johnshiweda2575]

This is very simple,helpful and easy to follow.Thank you so much.

[@8020Media]

John - Thanks for the feedback! We hope it helps.

[@familyoviedo7193]

Awesome video description, i have adhd, so it helps absorb the information.

[@8020Media]

F - Thanks for the feedback! That's what we hope to do!

[@ThuggBoi69]

Awesome video my guy keep em coming

[@8020Media]

Thugg - Thanks for the feedback! We sure will keep videos coming.

[@raymondfonseca]

Very good presentation!

[@8020Media]

Raymond - Thanks for the feedback!

[@user-xt9rw6yl2l]

Jake, excellent presentation. This is one of the most wonderful and best presentation I ever heard on auto issues. My issue, will accelerate to 2000 RPM. Then when I floor it engine bog's down. When I let up on the gas pedal half way, engine accelerates and takes off as long as I keep her around 2000 RPM. No miss firers. New plugs, coils and wires. New fuel pump. Getting Codes P0171 & P0174. 1998 Ford Expedition 5.4L, 130k miles.

[@8020Media]

R - Thanks for the feedback! Those codes indicate a lean condition, which leads us to check these things: MAF sensor, vacuum leaks, fuel pressure, O2 sensors, and fuel injectors.

[@user-xt9rw6yl2l]

Thanks Jake. I never replaced 02 sensors so I'll start with replacing all 4 upstream and downstream 02 sensors. Will report back to you.

[@8020Media]

Please keep us updated! We hope it helps.

[@noice8114]

@@user-xt9rw6yl2lHey I got a 5.4L F150, did that solve your problem?

[@mst5321]

Hey man this was the best video I’ve seen.

[@8020Media]

MST - Thanks man, we really appreciate the feedback.

[@siobhanzie]

What a wonderful explanation!

[@8020Media]

S - Thanks for the feedback! Hope it helped.

[@normaolivas7270]

Great information, thank you! 😊

[@8020Media]

Norma - Love to hear this. Hope it helps!

[@happyness2928]

Thanks for the explanation. Very helpful

[@8020Media]

Happy - Thanks for the feedback!

[@user-fn8kc2ug3s]

Thanks for your very informative video easy on the eye and ear keep them coming bud

[@8020Media]

S - We appreciate the feedback! We don't plan on stopping anytime soon.

[@abdoulieceesay529]

Absolutely a very good analysis ❤🎉

[@8020Media]

A - Thanks for the feedback! We hope it is helpful.

[@sylvesteradim1532]

Thanks for the wonderful information

[@8020Media]

Sylvester - Thanks for the feedback!

[@noelnavarro841]

Precise presentation !

[@8020Media]

Noel - Thanks for the feedback. We hope it helped!

[@KIMRLew]

Im so thankful for this video. Im having this issue and the mechanic cant find a problem. I was thinking i need to trade the car in. Im inspired to keep troubleshooting. Air filter and spark plugs have been changed. Cant get appt to dealerfoir a month. Excellent video!!

[@8020Media]

C - Thanks for the feedback! We hope you'll be able to figure it out and save some money. Keep us updated.

[@peterlonter9053]

best technical explanation ever .thank you

[@8020Media]

Peter - Thanks for the feedback. We hope it helped!

[@MelisJoy]

Thank you SOOO MUCH for this amazing detailed video. I just spent $2500 trying to figure out why my car has trouble accelerating & was squeaking. I've changed AC clutch, alternator, pulleys, changed fuel injector, oil change, you name it..yet still have extreme vibration, fuel burning smell, squeaking (the volume has reduced though) and horrible acceleration especially on incline. RPM seems to have trouble going below 2 and seems to run faster overall. I've brought it to my dealership & another mechanic. Dealership gave me a quote for 3000 worth of additional fixes but said they "didn't feel anything wrong with my car" Other mechanic says he will have to start taking apart my engine which is super costly. I'm so confused on who to turn to & so drained mentally & financially from this

[@8020Media]

Melissa - So sorry to hear about this. We have a plethora of DIY videos on our channel that we think would be helpful. Based on the symptoms you are experiencing, we think this would be the best place to start: kzbin.info/www/bejne/eJq8pKSIf6h_nqc Keep us posted on this!

[@MelisJoy]

​@@8020Mediathanks so much! I definitely will

[@jessechinen3730]

@@MelisJoydid you fix it? I’m having similar issues with my wrangler

[@marlenebrown2569]

Good job and extremely thorough. I would like to see a version of this which uses common English for those of us, like me, who don't speak car tech. And maybe divide it with markers that help us see where the info we want is located.

[@8020Media]

Marlene - Thanks for the feedback here. We will take it into consideration.

[@user-pu9iw9il4u]

We appreciate what you are doing so far today I've learned how to mantain the hydlin

[@8020Media]

James - Hope it helped!

[@rogerrico13]

Great explanation and well done very well explained

[@8020Media]

Roger - Thanks for the feedback! We hope it helps.

[@feliciamarte3031]

God bless these videos I'm a female with health issues and most macanic don't have compassion they lie so u can pay more I'm learning sooooo much God bless the men in these videos ❤️🌈❤️

[@8020Media]

Felicia - Glad to hear the video was helpful! Thanks for the feedback.

[@prophetbenodjenaborMAN-OF-FIRE]

Great info!

[@8020Media]

Ben - Thanks for the feedback!

[@humanaddictions]

Excellent presentation. I understand how the different elements group together now. I recently bought a 1999 Lincoln Navigator. First day it blew a spark plug. I got that "fixed," and hit the interstate and engine light came on and it lost a lot of power. Now it sputters, backfires extremely loud, gets 4.3 MPG, and gets up to 40 MPH but it takes five minutes to get there. I've been trying different things based my ability to afford a part. I saved for a year for a vehicle and that's what I got. I'm an independent contractor courier, so with the gas mileage and MPH, I don't make much profit. I hope it isn't the last part on the list of possibilities...

[@8020Media]

H - We have many DIY videos that we think could assist you with your symptoms! Here is the playlist: kzbin.info/aero/PLiX521qA-UEQrLY1ZRDnLP37yCDCcvQCV Do you happen to have a code reader?

[@humanaddictions]

@@8020Mediathe codes from Advance Auto's code reader are: P0174, P0443, P0122, P0113, P0171, P1406, P1401, P0401 I appreciate your time.

[@gregori154]

Ngl this IS THE KIND OF EXPLANATIONS I NEED.

[@8020Media]

G - Hell yeah, we love to hear that. Thanks for the feedback!

[@austincunningham3875]

Excellent presentation this is one of the most wonderful presentation I ever heard on KZbin over the years in such a simple and unique manner. Great Job done sir as this information is very much helpful to me as my friend Noah have the very same problem.

[@8020Media]

Austin - We really appreciate the feedback and hope it helps you and Noah out!

[@user-wp4cv7pn5n]

what happens to noahs problem how was it resolved?

[@8020Media]

What?

[@ticklershpickler]

As a 22 year old black grandma, this will really help me fix up my Lincoln Town Car

[@8020Media]

T - Thanks for the feedback! We hope it helps.

[@ArnulfoAstudillo]

Very helpful clear information. That you so much.

[@8020Media]

A - Thanks for the feedback. We hope it helped!

[@jm-po6bs]

Very informative, thank you sir!

[@8020Media]

Jim - Thanks for the feedback!

[@Sinless_Sphere8888]

I wish u lived right around the corner from me I would be at your house everyday. Best explanation and great advice. Keep up the great work u are going to help alot of people out here.

[@8020Media]

Nate - We really appreciate the feedback. Just trying to help everyone we can!

[@mr.miguelesparza5770]

😮 not everyday

[@TheOnlyRoute]

Thank you for all the helpful tips. My car only stumbles when trying to accelerate on an incline/hill.

[@8020Media]

ST - Glad we could help!

[@hunterloza4255]

Did you find out what it was @ST-wp1of

[@TheOnlyRoute]

@@hunterloza4255 no not really.

[@MLinktheprophet]

Damn he didn't even give you a guess of what it could be.

[@8020Media]

ML - Are you referring to us? The video outlines things we advise doing.

[@terrygeorge6781]

I will follow this video step by step problem solving I hope starting with the filters - air - fuel and so on see if I get any success cheers

[@8020Media]

Terry - We hope it helps! Keep us updated.

[@elainec2577]

Excellent teacher !!!

[@8020Media]

E - Thanks for the feedback! We hope it was helpful.

[@muhammadkhan5053]

Excellent, Star your channel

[@8020Media]

Muhammad - Thanks for the feedback!

[@hallwayz1]

In other words.. Empty them pockets lol

[@8020Media]

H - Or take it to a mechanic for diagnosis and replace yourself.

[@kelvinkim1332]

Thanks for sharing, I enjoyed your lesson.....🙂

[@8020Media]

Kelvin - Thanks for the feedback! Hope it helped.

[@keovongogh4094]

Thank you! Very helpful!

[@8020Media]

Keo - Thanks for the feedback! Hope it helped.

[@guyelsenburg9196]

Can a failing catalytic converter cause my car to have no acceleration randomly tobthe point ibhave toblet my foot off the pedal and wait a secound then putbthe foot back down and then the cars acceleration comes back on hard and orbi let off the pedal and down shift a gear then again it will roar back to life again the car does have a rattle in the exhause at idle rpm /at low crusing rpms at randon tooo

[@8020Media]

G - It's possible, but this sounds more like a fueling related issue. We have a ton of DIY videos that may be helpful: kzbin.info/aero/PLiX521qA-UEQrLY1ZRDnLP37yCDCcvQCV

[@AnujisBerg]

What would you say about a car that has very weak forward acceleration when accelerating from idle, but reverses with no issues whatsoever?

[@DoglifeATL]

Transmission needs work

[@8020Media]

Anujis - This could be many things. Transmission is the most likely thing, but could certainly be catalytic converters, misfires, fuel issues, intake issues, or exhaust system issues.

[@larryhoover1639]

Transmission clutch may need changing

[@bonganikhumalo221]

Thank you so much for your explanation bro

[@8020Media]

B - Thanks for the feedback! We hope it helps.

[@johnnym.rodriguezr3562]

Great explanation!

[@8020Media]

Johnny - Thanks for the feedback! Hope it helps.

[@TONE60643]

Start with your oil change and oil filter.then check your air filter and make sure your spark plugs and wires are current.This will stop the rest from occurring

[@8020Media]

Tone - Thanks for sharing this insight, although it's a little vague. Doing the above, won't necessarily stop the rest from occurring.

[@TONE60643]

@@8020Media let me rephrase that.Itll stop the rest from going out early and prolong the life on it which will give you a decent amount of time to prepare for upgrades

[@8020Media]

Then we completely agree!

[@TONE60643]

@@8020Media nothin lasts forever but God is eternity

[@selespeed3]

temperature sensor is important. you did not mention this.

[@8020Media]

Yes, that could do it too - I tried to cover the major items but the list is long. Bad temp sensor probably isn't quite as common of a problem but it would certainly cause issues that could cause this too.

[@waztechsteelworks]

What a detailed, love it.

[@8020Media]

W - Thanks for the feedback!

[@user-bu7pr4ze1x]

Great information really very good

[@8020Media]

Marlen - Thanks for the feedback! Hope it helped!

[@dominicgeorge5560]

I love you explanation very simple

[@8020Media]

Dominic - Thanks for the kind feedback. We hope it helps!

[@tonycasiano6961]

Thank you sir for this information.

[@8020Media]

T - Thanks for the feedback! We hope it helps.

[@josealmanza4385]

Very good info👍

[@8020Media]

Jose - Thanks for the feedback! We hope it helps.

[@SundayAdebisi-rc5vd]

Great one! Well delivered. Pls I notice my car stalls but anytime it happens and I put the car on reverse it works perfectly but stalls while accelerating. Everything u suggested have all been done with no result... what more can I do?

[@8020Media]

Sunday - We actually have a video for engine stalling. Let's start there and see if it helps: kzbin.info/www/bejne/bZPUcnyYjreXpMU

[@curtisjewell8098]

Very Good Job!

[@8020Media]

C - Thanks for the feedback! Hope it helped.

[@costajoao8559]

Hi, good explanation. My don't accelerate and I noticed a black smoke to the exhaust.

[@8020Media]

Costa - Thanks for the feedback! Black smoke emitting from the exhaust usually means the vehicle is experiencing a rich fuel mixture. Things we would check: fuel injectors, MAF (Mass Airflow) sensor, O2 sensors, air filter, spark plugs, and ignition coils.

[@user-qo3is6zs1w]

Very educational experience. What makes a rattling noise in the mazda axela engine?

[@8020Media]

Kas - Thanks for the feedback! That can be many things unfortunately: Heat shield being loose, timing chain rattle, worn out pulley, valve lifters, motor mounts among others.

[@hugoperez5469]

It’s the best video I have ever seen I even with my broken English

[@8020Media]

Hugo - Thanks for the feedback! We hope it helped.

[@P3_0216]

Thank you sounds like my 2012 Buick Verano loss of power only sometimes and I already have one Cadillac Converter replacement I’ve been told the other is bad as well.

[@8020Media]

Pralston - Thanks for the feedback! Keep us updated on this.

[@floyd9witter205]

Have u figure out the problem with your 2012 Buick because I am having the same problem with my 2009 Honda pilot I change the catalytic converter and the problem is still there

[@sohaibalhabash1654]

Great information thank you so much

[@8020Media]

Glad it was helpful, thanks for watching!

[@DAMITH250]

Good one buddy 🍻

[@8020Media]

Damith - Thanks for the feedback. Hope it helps!

[@pierrelouischarles4454]

Good job and thanks 🙏

[@8020Media]

Thanks Pierre!

[@shearerebanks9106]

Excellent presentation continue departing your knowledge so we can assist ourselves and save money thank you very much much

[@8020Media]

Shea - Thanks for the kind words! That is our goal with these types of videos because we know how some dealers/mechanics can be!

[@carlossagastume5026]

Great información God bless you!!!

[@8020Media]

Carlos - Thanks for the feedback. Hope it helps!

[@Scottb92768]

I can't believe how this man is explaining in detail I went to another side while ago he was trying to ask the question and he wanted me to pay $5 to join their site or whatever just to find out the answer and this man is explaining detail I'm going to start my fuel filter cuz I already checked the injectors and a coil packs I just don't understand

[@8020Media]

Scott - Thanks for the feedback. We strive to provide everyone with proper information to self diagnose any problem their vehicle may be having!

[@thomasquinn5537]

Your map or maf sensor or the air intake temp sensor could be failing

[@Scottb92768]

@@thomasquinn5537 thank you I still haven't figured it out yet.lol but do you think if the battery ends are lose could that cause it I just found out that they are lose and I am going to tighten them up today when I get off work.but I appreciate your feedback I am going to have it put on code reader today when I get to my son's house he has one

[@marloncolville9303]

tank fore the information. desde Limón Costa Rica Pura Vida

[@8020Media]

Marlon - Thanks for the feedback! Hope it helped!

[@hectorsesay8579]

This is a great content and i am happy to come across this video. I am having this problem on my Mercedes-Benz but the problem comes on and off ( intermittent).... and with no light on my dashboard. What do you recommend

[@8020Media]

Hector - Unfortunately this isn't a very easy issue to diagnose. Therefore, this could be many things, but we can provide some starting places to look into. The fuel system (Fuel filter, fuel pump, fuel injectors), air intake system (air filter or MAF), and ignition system (ignition coils and spark plugs). Keep us updated on this!

[@richardmome717]

I have tundra 2002 with this fault code 172 173 I have changed so many things but the car is still not working

[@nezukokamado4550]

P0172 is oxygen sensor might be bad or clogged with carbon buildup. I would replace the O2 sensor. P0173 is fuel trim error, I would clean the mass airflow sensor with mass airflow sensor cleaner. On my 2002 Toyota 1MZ engine, the throttle body was clogged with carbon and pcv valve was also clogged with carbon buildup. After I cleaned them with throttle body cleaner the engine runs much smoother.

[@8020Media]

Nezuko - Thanks for adding this insight and helping others!

[@dpsheals]

I get a clicking or ticking. I have a bad/ burned out coil and spark plug. Also not getting much power or acceleration. Hoping That’s the problem as I can’t get up to speed to drive. Also I hope I have some old ones that are still usable because I’m broke 😂. Thanks for this video. I will start at the maf sensor, air filter, then spark plugs and coils. Again, thanks for the info. You freakin rock

[@8020Media]

Not a problem thanks for watching - if you have a bad coil and plug then you are probably misfiring like crazy which will certainly cause that so I'd suggest checking that out first. Not sure what car you have but most plugs are very cheap, coils usually are reasonable too if you're just buying 1.

[@castromushala8419]

Well explained

[@8020Media]

Castro - Thanks for the feedback!

[@humanfactors143]

Hi, Amazing 👏. Well presented. I have an Acura Mdx 2018 and there is a couple of seconds lag in acceleration after idling at the traffic light(Not Always). But is scary when I am waiting to turn left and thinking that I can make it before the car that is coming straight get close. But for a few seconds no acceleration, no rpm on the gauge. And because I took the foot off the brakes, the car is already by the middle of the lane. A few times it was really scary. Does it ring any bells? Any help is appreciated.

[@8020Media]

Unfortunately this could be anything we discuss in this video. I'd start by checking your spark plugs and wires/coils.

[@darnellwillis4450]

Good job 👍👍👍

[@8020Media]

D - Thanks for the feedback! We hope it was helpful.

[@jimprior5700]

GOOD INFO WELL COMMUNICATED BUT WHAT IF IT IS VERY INTERMITTANT?

[@8020Media]

Jim - Thanks for the feedback! I would just pay attention to the symptoms when they happen so you can self diagnose.

[@yvip]

Thank you ❤

[@8020Media]

Y - Thanks for the feedback. We hope it helped!

[@levisholden4315]

Thank you!

[@8020Media]

Levis - Thanks for the feedback! Hope the video helped.

[@olenaerhardt7725]

I have P0401 code coming after ~30mi and try to clear it. The car is 2001 Saturn SL2. I was referenced to this film in another film of your channel "How to Fix a P0401 Engine Code!" I find it very helpful, a lot of useful information. On this car I did everything you advise, including Fuel Pump replacement. I suspect now Power Brake Booster (or Booster itself or its Vacuum Hose). Though it can be dirty EGR Valve passages. I think it is not possible to clean them well, unless you remove the Intake Manifold. Please could you tell with what solvent it is better to clean the Booster Vacuum Hose (I couldn't find a new one for that car). And is it possible just to make another new hose fm/a hose of corresponding diameter? I mean just to cut a new hose. Thank you again.

[@desitrader7827]

Hello, thanks for the video. My car does not have MAF sensor. it has MAP. do they go bad frequently?

[@8020Media]

Desi - Thanks for the feedback! We wouldn't say they go bad frequently, but it is certainly possible.

[@sergiorosales9470]

Very knowledgeable

[@8020Media]

Sergio - Thanks, we hope it helped!

[@berriesmbewe4486]

thanx a lot bro. can an O2 sensor affect performance such that the car can not exceed 130 km/hr? l diagnosed my car & it picked the top O2 sensor can it be the only problem? lm yet to change it!

[@8020Media]

Berries - An O2 sensor plays an important role in a vehicle's AFR (air to fuel ratios), so it certainly can affect a vehicle's speed. However, it may not be the only issue causing this. Unfortunately, with this problem, there are many things that can cause it. Best thing to do is to start with the O2 sensor and go from there since you pulled a code for it.

[@amag9877]

Thanks so much for this, my car jerks when starting and also when in motion, fuel pump, plugs, etc have been changed yet the same issue persists

[@8020Media]

Amag - For a vehicle jerking, there can be many causes. Do you have a check engine light?

[@itsmir3096]

Im having the same issue with my 2016 kia forte, i ended up getting a new engine 😒 but the issue is still there, changed the sparks and battery and air filter, no check engine light . 🥹 can some one point me in the right direction ! Please.

[@glenjansen8255]

Thank you 😊

[@8020Media]

Glen - Thanks for the feedback! Hope it helped.

[@venancialjblessings2057]

Thank you so much

[@8020Media]

V - Thanks for the feedback!

[@courtneyclark995]

Very helpful

[@8020Media]

Courtney - Thanks for the feedback! We hope it is helpful.

[@no1herebutuschickens]

Also throwing out the transmission here and load vs no load. Such as when you push the accelerator down, is it sluggish to power the wheels? Then in N it's revs with no issues? In my case on a 94 maxima, with an infrequent, but un-timely issue. Only when you need it :) Which could be the TCU having an issue. and also cause some rough idle / jerking response in motion or just standing still in gear.

[@8020Media]

N - Very true! Thanks for sharing your experience and insights!

[@CameronGraves-ly2ih]

Thank you 🤙

[@8020Media]

Cameron - Thanks for the feedback. We hope it helped!

[@Jay-fq8uz]

Did you mention ? Spark plugs and coils? This is the first thing that got recommended to me to change.

[@8020Media]

Jay - This can certainly be a possibility, but not sure it would be the first things to check as they can be more expensive than other things.

[@keltecdan]

My Suzuki SFV650 had an issue of bogging down falling on its face when I roll on the throttle hard especially on the highway. I believe my fuel pump which is only three years old since I replaced is going bad. Or it could be a bad fuel pressure regulator.

[@8020Media]

M - Correct, it could be either of those. We have a video by us on the fuel pump that might be helpful: kzbin.info/www/bejne/mabEZ5R9Z9GXb6c

[@user-jc2wu6fy3j]

The video help me a lot

[@8020Media]

Awesome glad to hear, thanks for watching!

[@6atxrn]

So my acceleration isn’t super slow but I have noticed a decrease especially in power when i step on the gas. I have no codes showing up or anything, I do notice that it sometimes struggles and the shifting isn’t the smoothest, when accelerating from a stop, it doesn’t jerk me back super bad but it is a little noticeable. Car is a bmw 328i and only has 88k miles I haven’t checked the spark plugs, maf etc but , I really hope it’s not the transmission .

[@8020Media]

6 - It shouldn't be the transmission. But keep us updated.

[@user-vd9cz8np2g]

Thank you

[@8020Media]

M - Thanks for the feedback! We hope it helps.

[@richieokyere4145]

Great Video Thanks. My Honda civic 2010Lx looses power when accelerating. Code P0606 was detected and a new PCM was installed but problem still persists. Trottle sensor has been removed as well as AC sensors removed, but it works for a while and problem still persists. Please help me 🙏🏾

[@8020Media]

Richie - Thanks for the feedback! It's a little difficult to diagnose, but have you gone through our checklist? It's pretty solid in assisting with this issue.

[@amstrongsanjata1150]

Check the fuel pump

[@Amahyze777]

What was it?

[@MrRyancangri]

Awesome video. My 99 Astro has very poor acceleration. I get upto 30 mph going up hill, and 75 mph on flat ground. I've replaced the fuel filter, cat, 02 sensors, throttle control sensor, and cleaned out my egr valve, and map sensor . Still runs like crap.

[@8020Media]

Ryan - Sorry to hear this. Sounds like you've hit a lot of parts already. How many miles are on it?

[@MrRyancangri]

@@8020Media Thanks. 259k

[@8020Media]

R - Wow. Sounds like normal wear and tear could be playing a part to this.

[@MrRyancangri]

@@8020Media Yeah man. I'm going to recheck the MAF sensor one more time, and the the EVAP system. I'm getting a P0442 code which detected a small leak. Wish me luck bro. I'm trying to hit the mountains this weekend. 😆

[@8020Media]

Ryan - Keep us updated!

[@midnighttacomaman1088]

Love your explanation video on idle loss. I have a 2018 Hyundai sonata 2.4L. On parking gear, I held the rpm at 2,500- 3,000 RPM and noticed that after about 30 seconds the idle dropped to 2000 rpm’s or less and even by pushing down the Excelerator, the RPMs would not go up until I would totally let go of the Excelerator and then press down on it and then it will go back up to three for 5000 RPMs, but then, after a few seconds it was dropped back down it would not rev up unless I let go the pedal totally and Rev up again…. 🤷🏽‍♂️ i’m not quite sure what is causing this. I did smell the egg smell at the end as I was thinking what was going on. I don’t know if it’s related an electrical issue or dirty mass airflow sensor or a bad catalyst like I don’t want to be spending all that money just to figure this out. Do you have any idea, the car has 73,000 miles on it thank you I would appreciate if you have a response. Note the car runs great no issues on the highway. No issues on the road. No up-and-down idle. It’s just when I hold the Excelerator down on parking that it starts to misfire and then it will drop down below 2000 RPM and won’t go back up unless I let the Excelerator go and re-press the Excelerator.

[@8020Media]

Midnight - Most modern cars have a rev limiter when the car is in park or neutral. This is to protect the engine from over-revving without any load on it. The behavior you're seeing might be completely normal if the ECU is designed to cut off fuel or spark after a certain RPM or after a certain amount of time to protect the engine.

[@midnighttacomaman1088]

@@8020Media thank you, that’s a load off my shoulder. Also there is No check engine light. Thank you

[@8020Media]

No problem! Keep us updated.

[@sanasahiba23]

Thanks for sharing this. Very helpful. My kia ceed 2010 starts perfect but doesn't accelerate properly (delayed acceleration). OBD2 scanner also shows P0172 and P0016 codes. In addition, I found oil on ignition coils. Any advice on this? A mechanic also suggested clutch problem but to me that works fine.

[@8020Media]

S - Sounds like you have a fuel rich environment and perhaps a timing issue. Therefore there has to be a sensor that may be clogged telling the engine to push more fuel to the engine than is needed. We don't think it's a clutch problem. Things to check: MAF sensor, valve cover gasket, fuel injectors, camshaft position sensor, or oxygen sensor. Keep us updated.

[@sanasahiba23]

@@8020Media Thank you for your message. Still getting the P0016 code that appears (after clearing code) as soon as the engine starts. Changed Camshaft sensor, no effect. Oxygen sensor appears to work in live data. Most sensors appear to work as expected. The car appears to be in limp mode, not going above 40mph. Any suggestions to address the timing issue? The problem started after I jump started the car. Does this have anything to do with the current timing problem?

[@sanasahiba23]

hi, Have not heard back from you. Could this be due to wiring problem as the acceleration/limp mode issue started after a jump start? @@8020Media

[@user-st3bg8gy9w]

Any idea what would be the problem with my 1999 Ford F-150 starts and rough runs, no power in drive but drives good in 4x4. Have done injectors, coils, fuel pump, regulator and plugs. Replaced the mass flow sensor 2 years ago.

[@8020Media]

D - Do you have any engine codes?