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How to | Tell If You Really Need a Mass Air Flow Sensor | Auto Repair | Wesley Harrison | Clean|MAF

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http://aboveandbeyondautorepair.com/book/auto-repair-secrets/ How To Clean a Mass Air Flow Meter and Tell if you really need one. Stop letting "them" take advantage of you - Get My New Book: How To Tell If You Really Need it, the Auto Repair Secrets 'They' Don't Want You to Know About. I've made an interactive special edition just for my viewers available at special price - just for you. Above and Beyond Auto Repair is and always was so much more than being about getting you vehicle fixed, it was about taking care of you. You need to know the games that are played behind the scenes at most repair shops and national repair chains. Once you discover for yourself the power and impact having this knowledge gives you, you'll look forward to going to the auto repair shop, only now it's on your terms. During your next visit to the shop, imagine being able to ask just 2 questions and instantly save over a $100 bucks. How would that feel? Want to repeat that result with every repair from now on? Inside you'll learn exactly How to Tell If You Really Need It, by knowing what to listen for in the answers you receive from asking the 2 questions above. With over 39+ years of automotive repair experience, Wesley 'The Car Doctor' Harrison, an ASE (Automotive Service Excellence) Certified Master Technician and former automotive repair shop owner, pulls the curtains back and explains the principles behind the automotive repair industry and how most national chain repair shops actually work. This book details numerous insider tips that will arm you with the knowledge to be able to choose a great shop, ensure that you are not being taken advantage of and give you peace of mind you are getting the absolute best value for your money. Fact: If you take your vehicle(s) to a repair facility, just one tip from this book will save you hundreds almost immediately and when you combine all the tips you'll save thousands over the course of a year - Per Vehicle. Want better tires at a lower price? Want your new tires to last longer than advertised? Find out how inside, and so much more. Want to know how to get over 500,000 trouble free miles from your vehicle? People that do this ONE procedure outlined inside have lower repair bills and average over 500,000 miles on their vehicles before having to spend any money on major repairs. Can you imagine giving someone as little as $20.00 and having them cheerfully giving you thousands of dollars' worth of 'free' auto repairs for years to come? (Legally). There's a way to do it and it's not thought of often enough. This is a very fast read and will almost seem like common sense, but the insider secrets are invaluable to you, your family and your friends. Wes' Qualifications: He is recognized a leading expert in the automotive repair industry. He's collected more certifications, awards, and certificates than he can remember. The important ones are his ASE Automobile Master Certifications and his ASE Medium -- Heavy Truck Certifications. He has an Associate of Science Degree and is working toward achieving his Masters of Geology Degree. In 2003 he opened his own shop and aptly named it Above and Beyond Auto Repair. To date he's helped over 1 million+ people with car related issues through forums, training's, videos, books, reports, service calls, service centers, educating fledgling mechanics, informational websites and several other training mediums and that number continues to grow every day. In November of 2011, he decided that 39+ years professionally making a living working on cars was enough. He sold the shop and became a full time business consultant, speaker, coach, teacher, author and internet marketing consultant. But his phone still rings a couple hundred times a month with questions about car repairs and how to ensure people are getting the best value, which inspired this book. Now you too can have peace of mind about knowing you cannot be taken advantage of any more. A Personal Guarantee and Note from Wes, If you do not feel you've received a minimum of double your investment, send in your proof of purchase (to me) and I'll send you DOUBLE what you paid for it (including shipping) AND you keep the book, the bonus videos and everything. I call it my 200% Satisfaction Guarantee. If for any reason you are not 200% completely satisfied for any reason, there is no charge what-so-ever. My goal is to help you, not take your money. All my contact information is provided in the book. Sincerely, Wesley "The Car Doctor" Harrison http://youtu.be/aDlHCjgYf8s
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Текстовые комментарии (382)
James Ledesma (16 дней назад)
Great video brother keep it up
Raceem C. (24 дня назад)
Very accurate advice.
Kelly Righetto (28 дней назад)
Can you please show it on a 2013 Dodge Gran Caravan?
Patrica Forde (1 месяц назад)
Put on a new frontal position sensor it did good for a while adjusted it to the eye watch your video and it did say something about if you wants had mice that got into your motor which idea did they made a nest into the heater blower motor cleaned it out and they made a nest in the air filter clean down that out didn't have a problem until the throttle position sensor was put on now when I come 2A slow or not hitting my gas or riding without hitting my gas my car is cutting off do you have any thing that might can help me
JIMMY TATE (1 день назад)
i think you might benefit from an English as a second language class
Mole (1 месяц назад)
Thank you for advice with disconnecting MAF. My car when started with MAF attached, engine stooped almost immediately. After disconnecting it started and worked fine. I'm going to replace MAF.
E Lowk (2 месяца назад)
Thank you for the video. And thanks for your crew being able to assist. Really says alot about you guys. Thank you once again
Mic (2 месяца назад)
After getting an 'engine check' light on the dash of my 2015 eco-diesel (traced to a mass air flow sensor issue) I was able to clear the light simply by changing the air filter. I found a mouse nest build-up on the intake side of the filter and after vacumming the filter unit completely and changing the filter, the light cleared itself after about 5 miles of driving. Try this 1st - it costs little to nothing and should be done anyway.
Ed Smith (2 месяца назад)
I don't wear my seatbelt, because if there is a crash I want to be the first one out of the car! lol
Fucknuts (2 месяца назад)
i washed my mass airflow sensor with bleach and ammonia and a stiff wire brush
ClassicTrainsValdez / CTV (2 месяца назад)
I'm getting low voltage on my mass air flow sensor is a 97 Pontiac firebird 3.8 2.60 volts
DKB 369 (3 месяца назад)
Have 89 biuck reatta. Been sitting for 15 years. Have replaced lots of stuff. Not maf sensor yet tho. It idles bad an dies. Runs better when cold. When I leave work it hard to start cause it hotter out. An dies faster an acts up more. So get new maf I guess....
Edward Ryback (3 месяца назад)
I cleaned the mass air flow sensor on my 2010 elantra (62,000 kms) The engine still idles rough , but drives ok when off idle. It seems to be idling rich. according to the sparkplugs, but lean when driving ( No tail pipe carbon residue) When I unplug the MAF sensor it continues running and idling rough. I have not checked for a vacuum leak yet that could cause a rich fuel trim at idle. What do you think?
suffolk6311 (4 месяца назад)
Test drive dummy wear a seat belt.
ANTI TROLL (4 месяца назад)
Fair enough 🧐, I like it 👍
Baddscorpio (5 месяцев назад)
No seatbelt AND you keep taking your eyes off the road... Nice 😂
EmesiS (5 месяцев назад)
I know this video is old, but I won't take any advise from a dumbass that's not smart enough to wear a seat belt....lol.
WallyWinka (5 месяцев назад)
Hard to take someone seriously, or to buy a book (or anything)on advice from him when he doesn't have enough sense to put on his seat belt or to NOT make a video while driving down what looks like a busy road.
Derek Likos (5 месяцев назад)
I had a k&n filter in my clk 350 for less than 100 miles and it destroyed my MAF sensor causing my car to stall and sound terrible, i will never use there product again. And no i didnt "over oil it" i just bought it so there was no need to oil it. Should i clean it and disconnect my battery to see if CEL never comes back on? Or should i buy a new one for 80 bucks? Btw i have a Mercedes clk350. Please help
I'm-perfectly happy to be me Michelle (6 месяцев назад)
This is my problem engine light came back on after I changed my 2 back 02 sensors, code came on for mass airflow sensor. So I had my dad spray it with the cleaner made for mafs that but not sure he knew what he was doing, light for engine still stayed on. Than I got a new mfas and changed. But engine light stayed on. Soo saw video that said to turn on engine and unplug the plug on the mass airflow sensor and if the car still ran it is bad. It still ran on the new one. So I put my old one back on and did the same thing when I unpluged it, it still ran. Someone said if you unplug it and it still ran that means the mass airflow sensor is bad. Is that true?
Joon kinloch (6 месяцев назад)
Will a dirty air mass flow sensor cause a car to shutter on acceleration?
blacktieaffair (6 месяцев назад)
dude where dat seatbelt?
hello dude (6 месяцев назад)
On my way to do wind tunnel skydiving , just figured I would make a video about a maf sensor for YouTube ....wtf lol ok
Heriberto Villanueva (7 месяцев назад)
DONTTREADONME (7 месяцев назад)
Wow! All these comments really show how many "freedom" loving people think they should be able to control what someone else does. Thanks for maf info. Do what you want brother! Enjoy true liberty while it lasts!
ethel barton (7 месяцев назад)
exactly. mine runs better with the MAS unplugged.
heuster (7 месяцев назад)
Would u check out this vid? Car runs like this randomly. When running fine, if I unplug MAF car dies. When car is running like crap, when I unplug MAF car idle smooths out and all is well. https://youtu.be/0xTUvFCDp3M
Junior Espinoza (8 месяцев назад)
Good video bro very informational
GERRY PASICK (8 месяцев назад)
if I unplug the Fuel injection air flow sensor, while the engine is running, and nothing at all happens, the engine still is running, what is going on ? A 2001 toyota camry 4 cyl auto trans ! 2.2 ltr engine
Byson Blaze (8 месяцев назад)
Spray a mouse in mass air flow cleaner and stick it up the pipe
bogipepper (9 месяцев назад)
Good info but you click baited me at the start with the indoor parachuting , Would have been great to add the the post.
Candy Jones (9 месяцев назад)
My car drives super slow and it says reduced engine power, low traction. I let my car run, unplugged the mass air flow system cord the car kept running
spartanzulu apatsi (9 месяцев назад)
at idle if it reads 0.01 is the sensor bad .i have a po172 code ,2008 chevy impala 3.9 ,,thanks
True Review (11 месяцев назад)
I have a BMW E46 and I'm having an issue with low idle , I have no vacuum leaks and almost I have changed everything ! if I unplug the MAF the car will still run , If I put it back same thing it keep running and the low idle is still there Please let Me know what's going on , I have no check engine but low idle on D or R ! it's not a engine on trans mount because I changed them and the idle on D or R is 500 or close to it thanks alot
Darren Mcnamara (1 год назад)
Good vid.
Darren Mcnamara (1 год назад)
Screw the belt. Your choice brother.
thamicburner (1 год назад)
so if my 1998 Expedition engine only stays on when my MAF is unplugged does that mean it needs to be cleaned or replaced?
davao0506 (1 год назад)
i saw a video that he unplugged his MAF sensor and his car died instantly and he said the sensor is good but if yoir car still runs when the sensor is unplug something os wrong
Neil Williams (1 год назад)
I bought a new mass airflow sensor about 1 1/2 years ago. 2000 Mercedes S500 Base 8 cyl. 5.0. This is my sons car. Recently, the car has been sitting for about 6 weeks while the mechanic fixed an air leak in the air bag suspension. Could this be why I am getting a code for the mass airflow sensor? Sitting for 6 weeks? I took the sensor off and it looks just like I put it on yesterday. There are no shorts in the wire harness and the wires are in good shape. Why am I getting this code if everything seems to be OK? Awesome video. Thanks so much.
Big Eric (1 год назад)
thanks a lot it was that
joetheshits (1 год назад)
Craig Roberts (1 год назад)
omfg! quit worrying abut this mans seatbelt, we should bve worried about him going "indoor skydiving!" Wes rox!!!
Mr T (1 год назад)
How did this comment section become about seat-belts and not the MAF sensor. Thanks for the info on everything Wes'.
Brown Paw (3 месяца назад)
Never saw such a bunch of wagging effeminate fingers in a car comment section. They never got grease on their hands.
Chris Ledbetter (1 год назад)
I think making a video while driving down the road is incredibly irresponsible. Not to mention the info he's giving you is only half correct.
CHUNA FOCHEII (1 год назад)
can you help me out? i have a mitsubishi galant 2004.i really dont know what going on with it.. the speed automatically dropped every time i drove it..what could be the problem?
Tony Sav (1 год назад)
It'd be the opposite. If you unplug the sensor while the car is running and you unplug it, and your car is still on. Then it means your sensor is not working correctly. Watch any other video.
Rafael Manuel (1 год назад)
so ,if I turn on my truck and unplug the electric harness from the MAF and the engine keeps running it's BAD? I tried that before on my chevy truck I unplugged the electric harness and the engines doesn't stop
Dj Lemo (1 год назад)
well cleaning it doesn't always work u might need to change it because I had a bad mass air flow sensor problem and I couldn't tell if it was bad because while my astro van is running and I unplugged my mass air flow sensor my van kept running the same there was no change in the motor but my light was on so I cleaned it and there still was no change so I ordered a mass air flow sensor of eBay for 30$ bucks and installed it and when I unplugged my new mass air flow sensor my an shut right off that's how I new it was the mass air flow sensor
darkhoasi7k (1 год назад)
p0113 code
C Hunt (1 год назад)
Will you people Stop saying for this guy to put on his Seat Belt the VDO is about Mass flow Sensor not Seat Belts thank you VERY much for this information
Carmela Guanzon (1 год назад)
Why is my diesel suv has a 124 g/s maf airflow reading in idle? My mechanic said its too high. Thank you
Dino Phil (1 год назад)
Great information
Chris Maines (1 год назад)
Working on a 91ranger. Has had engine swap with a 2.3 95 engine. Started running ruff and replaced all eight plugs and wires and coils. Runs better and will replace, not clean MAF Sensor. I believe vachume may be a problem as, no Catalytic and short loud pipes have been put on. Any suggestions would be a God send.
Chris Maines (1 год назад)
Dick B. (1 год назад)
Wondering if a bad MAF can cause code P0300.
Brandon napier (1 год назад)
I've been having a problem with my truck toyota tundra 2006. it what's to hesitate going up a hill can u help me
Mike Bergquist (1 год назад)
Raynold Michael (1 год назад)
Are there any other MAF sensor cleaner apart from CRC mass airflow sensor? What can I use to clean MAF if I don't have CRC MAF cleaner?
Chilidog (1 год назад)
What if your unplug it and it runs better and then when you plug it back in, it dies? Also, does anyone know if a bad battery or a voltage issue would cause erratic idling (low, stall, high). Does something different everytime I start it.
Courtney Bartlett (1 год назад)
I just did this with my pontiac grand prix and it's running, somewhat decent. where just 10 minutes ago it wouldn't start and now is running! thanks so much for the video! this has been driving us insane
daniel (8 месяцев назад)
Courtney Bartlett was the car cranking but not turning over? I have the same problem now! Car has to be in a very warm climate for a few days then it will crank over and run fine, but not when its cold. 2008 pontiac grand prix base
Terrell Wright (1 год назад)
Thanks Bro!
Jessie Urge a (1 год назад)
I have a 2005 325i BMW 53k miles, popped codes p0171 and p0174 car runs good very good wondering if its the MAF or 02 sensors or a vacuum leak??????
305chevyboys p (1 год назад)
what can be da problem
305chevyboys p (1 год назад)
im havin a problem my rpm going up in dwn & hesitated while driving
I did what you said I have a 2003 Chevy Monte Carlo. Unplugged it ran great so I cleaned it and it ran great now 2 weeks later it is back idling at 3000 again.So I am guessing it needs replaced?
Abel Wenning (1 год назад)
Wesley, you forgot your seat belt!
Maurice Perez (1 год назад)
g quinn (1 год назад)
jamunozjr (1 год назад)
can you tell me if code P0734 can be coming from the MAF causing the transmission to shift hard or miss a gear? 2001 discovery 2 62K original miles
Michael Iglesias (1 год назад)
thanks for sharing
kasiapoland (2 года назад)
awesome thanks!
David m (2 года назад)
I cleaned the maf for my 04 Mitsubishi Lancer ralliart and it still dies when I plug back in but it runs with it off , it everything is clean the TB the intake we just did the head
MrTimothylienhart (2 года назад)
Would mass air flow keep my suburban from starting??
Rick Howard (2 года назад)
I have a 93 ford ranger and I noticed the fuel pump was going bad, then one day it starting bucking real nad and died so i replaced the fuel pump, its nice and quiet now but still the same problem, so i replaced the fuel filter and air filter, still the same, then I noticed if I unplug the MAS it runs normal, but will die sometimes at idle but runs perfect ortherwise, so Im going to check for vaccum leaks and clean the idle passage ways in the flap on the throttle body and if that doesnt fix it, I'm fairly certain the MAS is whacked. is this correct?
chung suen (2 года назад)
thanks for the video, can I use electronic contact cleaner as MAF cleaner ?it is one that dry out completely.
Brittany Shepard (2 года назад)
I have a 05 dodge magum it runs great until i come to a redlight or stop sign then it shuts off but starts right back up
Brittany Shepard (2 года назад)
I have a 05 dodge magum it runs great until i come to a redlight or stop sign then it shuts off but starts right back up
Ken Wiggins (2 года назад)
here is what her car does.. you start it and at first it runs smooth but after about 30-60 second when it starts to idol down it idols rough. if you give it a lil gas itll clear up for a sec then back to running rough. if sitting there idoling it runs rough, clears up for about 3 seconds the runs rough again and its constantly doing that.. anyone has any ideas??
Ken Wiggins (2 года назад)
my god daughter has a 2008 Nissan Altima and when I unplug her MAFS her car stalls immediately. Why is this?? her car just started sputtin and sputterin and cant figure out why? took it to O'Reillys, they ran a diagnosis and came up the the Crankshaft Sensor. I changed that and it seem to have cleared up a good bit but still not right.. Do i need to have the codes cleared or idol relearn??
Rick Howard (2 года назад)
if u unplug the MAS and it dies it means the MAS is operating normally.
Christina Parga-Azevedo (2 года назад)
I replaced my maf sensor but when I started it it shuts off
Randy Burns (2 года назад)
i think my maf went bad due to water. ive been hoodless all summer in michigan. i think it ruined it. im replacing it tommorow. hopefully its my probblem. unplugged car runs but like shit. plug it in while running it shuts off.
Timothy Babcock (2 года назад)
Nice informative video. Though next time please don't do it while driving. I'd like to see some more of these videos in the future.
Mary Lawson (2 года назад)
Thought I needed a fuel filter but now might be the MAF after hearing hesitation while accelerating. Also started sputtering while backing out of my garage.
Del Brewer (2 года назад)
Hello. I have a 98 Chevy Silverado 5.7 liter (132000 miles). It normally drives good for the first mile or two down the road, then it just dogs down and has no power. I have to pull over and turn the truck off for maybe 5 or 10 seconds then restart it. it will run horrible for a few seconds after restart while driving again down the road, then it works it way back out of it. I've hung part after part trying to fix the issue with no luck. Changed both upstream o2 sensors (dual exhaust), fuel pump, fuel filter, and distributor. Changing the distributor did help with power increase when truck is running good before it takes a crap, but didn't stop it from falling on its face. Could this be a problem with the mass air flow sensor? I wasn't sure if a dirty or bad mass air flow sensor would case it to run good one minute then fail the next, yet return to a normal running engine after a restart. Get tired of hanging parts and paying out money for things I don't need and not helping the issue, less the distributor, I believe it was bad do to the power increase I gained after installing it. Any help is greatly appreciated.
Abdul Khaliq (2 года назад)
Bro, I have nissan sunny 2005 japan, when i drive car initial performance is too poor and spark plugs are new, filter is new,everything is new.still performance is not good,i search for the maf cleaner.but i ddnt found it in market.can i use ac delco carburetor cleaner?? Please advice.thanks
CAR MA (2 года назад)
hello wesley i try cleaning my maf still running rough i unplug the maf and th car sounds good revs and ildes good for like 2 sec then shuts off? is my maf bad? thank you
CAR MA (2 года назад)
thank you
Rick Howard (2 года назад)
no if you have a failed MA sensor and you unplug it, the car will run normal.
john pinedoe (2 года назад)
Hi 1996 Ford mustang V6 3.8 L eng my problem is po171 and po174 I smoked the system without result I decide to replace the MAF sensor but now I get po102 what should I do
Mellow- D (2 года назад)
Simply, concisely explained. Cheers.
Dylan Woodruff (2 года назад)
Could this cause a 98 ford ranger to have a rough idle?
Rick Howard (2 года назад)
yes, but can be other things as well.
Tamara Gray (2 года назад)
You are one good-looking car guy!!
JIM WADE (5 месяцев назад)
and your one good looking lady !
Peter leage (2 года назад)
do you actually need one though my car drives fine with out it when I put it in the car dies above a certain rev
Char (2 года назад)
So if I start my 2003 ford windstar van, unplug the MAF, and it does NOT shut off......i need to clean or replace the MAF? I can't tell if it runs better since it only runs crappy and stalls when I am driving it and stop at a light or stop sign the engine will surge and stall if I do not give it a little gas. I can tell when i plug the MAF back in with it running the engine slows down a bit. It is giving me codes p1336, p0171 and p0174
Araik Zanazanian (2 года назад)
oh sorry. when I rebuild the engine in that time I cleaned up with gasoline on MASF and Idle control sensor. I'm thinking that my cause of not starting the engine
Dallas Henderson (2 года назад)
when i unplugged it the car turned off but when i left it unplugged and turned the car back on it was going regular so what dose that mean ?
Chris Rodroguez (2 года назад)
great video thanks ill check my car it just shut off and wont start did spark plug change nd oil change filters everything wiring but for your safety and mine put your seat belt on before u crash
abdyfe (2 года назад)
good video but u need to keep your eyes on the road so u can stay safe.........take care
PS4 Syndicatê Legiøn (2 года назад)
I have a 2003 Mitsubishi Eclipse GS 2.4 with exactly 160700 miles on it. My problem is this: I cleaned the throttle body, PCV valve,and MAF sensor because I was told it was dirty, which it was but not badly. I unplugged the MAF and removed the air intake and cleaned that out than I cleaned the inside of the throlle body out with a rag and TB spray. Ever since doing this my car STALLS out when trying to start up. The car turns over but the engine just dies/stalls out. In order to get it to run and not stall out I have to push the gas pedal while im starting it and rev it for about a minute to stay on. Even while it doesn't stall out the RPM stays at 500 while trying to warm up while it use to be at 1200rpm untill it's warmed up and back to 500 for normal idle...What the heck did I do or could have happend? Today I did it all again but this time disconnected the battery before hand and also cleaned out the IAC vavle or motor. The car turned and fired properly and I thought I fixed the problem as it idled at 1200 while warming and then let it sit and drove about miles to relearn normal Idle. Got to worked parkes the car and it idled in park normally like it use to.....5 hours later go to buy lunch and stalled out on start up and is a little harder to keep it running now.. What could be the problem or what did I do????? Anybody who can help I would appreciate it as I'm not able to afford dealership repairs they want 120 just to scan it. I really don't want to lose this car I've had it for 5 years and has never gave me a problem.
Lord Berzarker Non Stigma (2 года назад)
is it bad to drive the car without plunging the mass air flow sensor? would it cause any damage towards the car?
Tim Perkins (2 года назад)
great advice
Bruce Glasson (2 года назад)
Hello Mr Harrison! I have a 1997 ford ranger 2.3. Try to check the maf, I got the 12 volt tested, its good, both grounds are good. When I try to check the voltage the sensor is sending out, the voltage goes up between 5 and 6 volts and the engine dies. Any suggestions?
305chevyboys p (2 года назад)
question my rpm gauge is going up and down rapidly when I start the car well in Part or drive what is the problem
305chevyboys p (2 года назад)
question my rpm gauge is going up and down rapidly when I start the car well in Part or drive what is the problem
mitchell brown (2 года назад)
your idle air control valve is bad if its doing that..
Dean Hudson (2 года назад)
+Early Pierce It very well could be what he's talking about. Start with cleaning both MAF sensor and the throttle body. Be very careful with the MAF sensor, it's very delicate.
Dean Hudson (2 года назад)
+Early Pierce It very well could be what he's talking about. Start with cleaning both MAF sensor and the throttle body. Be very careful with the MAF sensor, it's very delicate.

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