How to check for clogged fuel injectors

[@Engineerboy100]

If you want to learn how to perform basic service on your car, this full color book is the best you can get! www.amazon.com/Your-Care-Companion-Clint-Hightower/dp/1517466946/ref=sr_1_1?ie=UTF8&qid=1493398557&sr=8-1&keywords=your+car+care+companion

[@rabindranathramsarop]

this is the best injector diagnosis that i have seen.

[@e.b.6766]

I like the jumper. I’ll have to go to the junkyard to grab an injector harness for that same purpose. Saw another video but that guy used alligator clips to contact the injector terminals. I like your setup better!!!

[@verydarkbeer]

Good presentation. Thanks! Just a small "heads-up" from me. Make sure that cable you made is LONG. No doubt there is an "arc" from when you touch the battery to the jumper to energize the injector. Gas fumes are nasty and if the conditions are right....BOOM! Be careful. Respectfully.

[@Engineerboy100]

Good point :o

[@henrybikeman]

Excellent simple procedure for initial diagnosis. However you should reduce fire risk by keeping the sparking connection to the battery much further away from the fuel spray. Gasoline fires are seriously evil. Also I'd do it outdoors so as not to burn the house down in case you do set your car alight!

[@Engineerboy100]

Those are two great suggestions and I will be doing both in the future. You could not be more right about that. Thanks for your comment and safety tips. :o ... Don't want any fires in the wrong places ...

[@andrewmboya3101]

Good demo, no matter what the haters say!

[@paulhunter123]

This is the best simplist way of testing ive seen on you tube many have some nasa lab thing going on saying diy?

[@Engineerboy100]

Just be careful not to start a fire. I always have a fire extinguisher just outside of the cameras view ...

[@DrRestorations]

Due to the fact that all 6 injectors share the same fuel rail which is not leveled (back is lower than the front, from 6 to 1) and that any debris or sediments accumulated in the back injectors (5-6). Therefore, injectors 5 and 6 are easier to be clogged. For high mileage cars, it's also important to change the fuel filter in the back seat of the driver side.

[@Engineerboy100]

The fuel filter for the E36 M3 is under the car. I believe you are referring to the location of the fuel pump.

[@tonydavila2606]

No fancy scope or injector pulser, kinda dangerous but as a 20yo student I can’t afford all the tools, this will have to do! Lol

[@charosenz]

thanks. I was thinking of doing this and now I know it is much more easy than you might think.

[@Engineerboy100]

Just be careful not to start a fire and have a fire extinguisher near by and on the ready!

[@johnmwamba653]

THANK YOU FOR HAVING TIME LEARN MOST OF THINGS I DID NOT KNOW.

[@markt9438]

Nice and simple !!! i am doing a rebuild all 6 ultrasonic cleaned and pressure tested ! thats the way to go!

[@sincitydude7296]

very simple and too the point. good presentation.

[@Engineerboy100]

lol Thanks :)

[@hm3426]

Great video, man. I am going to do the injectors on a 2000 VW Golf, and I was or have had watched a lot of videos on that subject. And yours has attracted my attention. I going to use your method.

[@Engineerboy100]

Thanks man, I hope to be posting some more videos soon :)

[@Engineerboy100]

Make sure you have a fire extinguisher handy

[@Haider9292]

yes, excellent and simple ... thanks a lot for your time dear

[@jasonflint3971]

Great presentation! Thank you. Very helpful.

[@theothistledon6935]

Having fun and I'm safe! :)👍

[@Billionberry_]

Great Tutorial. I understood and could clearly see what you were doing but im also in mechanic classes so its not too tech for me. Thanks

[@Engineerboy100]

Here is a free copy of my book. Check out the Trouble Shooting Chapter especially, down pdf from my Dropbox. www.dropbox.com/s/mcwpv0rb7lun038/0%20Entire%20book%20with%20covers%20and%20QRC%20for%20eBay.pdf?dl=0

[@popdemonic]

I've ever seen the car on fire while cranking up with the fuel rail off with all injectors intact(for a test).the spark plugs with the fuel atomization could kill you anytime though they sprayed off the chambers.

[@jointheir9594]

So Clint, wait a minute, so there is the possibility of "a BOOM" O.K. NEVERMIND about the "hookup!!!" lol!!!

[@khachaivu5131]

This is so helpful. Thank you very much. Clint Hightower.

[@vegasheat71]

My truck go boom!

[@christopherfrancis4407]

What tools did you use i know a 9v battery where to get that tool with the alligator clips

[@Engineerboy100]

The TurboFlo Oil Changer is 2 inches thick and about the size of a cell phone, it can literally fit in your pocket. TurboFlo Oil Changer does not require you to pump it, or use a compressor, you don't have to dump the oil or jack up your car it is EASY! The TurboFlo Oil Changer will be great for cars, trucks, boats, and lawn mowers and so easy to use anyone can use it. We are so excited about the TurboFlo Oil Changer coming soon for everyone, men, women and teens!

[@redwillsdiychargedupvideo1486]

Nice trick obtaining a pigtail from donor car

[@duposflies2621]

Thanks for the video bro, I run the video over n over again to hear if u mentioned turn the key of the car on while u are testing with small battert. Thanks again.

[@Engineerboy100]

Yes, I had to turn the key on twice to let the fuel pump pressurize the system. But I didn't want the key on while I was testing the system, didn't want live electricity energizing the system while I was testing.

[@mrdeanv4414]

Great video and very informative and good to know... by chance have you ever had your Break Booter checked...? It's just me but I could hear a vacuum noise...

[@Engineerboy100]

Brakes have been working fine sense this video was made 7 years ago ... Thanks, I'll double check.

[@abdalqadr1]

Greetings for you from Iraq

[@mykaboo3546]

Awesome presentation. There is so much to learn thank you

[@Engineerboy100]

Timmyka Ballard Thank you so much, i glad you enjoyed it!

[@maxy2237]

i think you lost power and should re prime the pump between each spray test to keep pressure normal and relatively equal across

[@rahimpartovi2110]

Yes,i am agree with you

[@jeffreygomez7360]

Makes a lot of sense

[@harrisonboys3744]

No gonna cap this hood as idea only thing I’d do is let them spray into a bottle or maybe remove the injector an spray cleaner in it but his wire idea is 🔥

[@girohead]

Pretty good and clean, I initially had concern about gas going around hot engine or electrical.

[@Engineerboy100]

Yes, be very careful and have a fire extinguisher close by if you decide to attempt this.

[@RonGJX]

Cool video, Can you tell me where you got the injector connector cable with the injector plug on the end, for that makes that entire test much easier. Thanks again.

[@Engineerboy100]

+RonGJX I got the injector connector from a local auto recycle center and made the tester.

[@kellyokamoto1604]

Good job. Simple yet clear. Also love the name Clint-ya, I'm biased. It's also my middle sons name!

[@AnthonyJohnson-lp3ez]

Love this!! What if it seems some liquid is inside the connectors???

[@edschankereli2327]

A GOOD PRESENTATION.

[@gilzr473]

Great video thanks for sharing 👍👍

[@eagz2898]

good video & good book,thanks clint

[@redjones1990]

OMG PEOPLE!!!!!!! IT WAS JUST A TEST TO SEE IF THEY ARE CLOGGED...IT DON'T MATTER HOW BIG OF A BATTERY YOU USE IT WILL STILL SHOW THE SAME IF IT IS CLOGGED...But anyways good video..

[@ianwilds3139]

most injectors only require 5v

[@aarongoldesberry2882]

And it would take more than a spark from a 9 volt battery to ignite the gas. I've put my cigarette out many times with gas.

[@josetirado5330]

that was a beautiful presentation like that a lot

[@Engineerboy100]

Thank you Jose.

[@redealexander8951]

Awesome video, thanks!

[@Engineerboy100]

Thank you for watching Rede!

[@molliarti]

For me its wonderful test :) Thanks bro.

[@trackrunner11]

Thank you sir!

[@josephribot2261]

Good stuff Mr. Thanks for sharing.

[@Engineerboy100]

Thank you for watching, be careful if performing this check, gas fumes are highly flamable!

[@anilgayary4282]

Very very nice

[@sidykane7650]

VERY NICE, INFORMATIVE VIDEO, THANKS!

[@konstantintomilin1826]

but you don't need a 9v battery to do that on a BMW. There should be a 12v terminal under the hood :)

[@Engineerboy100]

Using the car battery is also a good option.

[@z1krrx]

My Injectiors don’t even click when I hook ‘em up to a 9-12v battery, had them professionally clean and a new fuel rail due to rust. Maybe I need new injectors dude to the rust monster

[@Airman..]

i take my customers injectors to a machine shop that charge me $10 each, they clean em with a special Ultrasonic machine i thnink it is a German made, they change the screens and install new O rings and they run bunch of machine tests on em to verify identical performace you wanna lookup a similar shop in you Area thanks for sharing

[@Engineerboy100]

Yeah that is the best way to actually rebuild your units, this is just a rough check to see if they are spraying a fairly fine mist, are not badly clogged and are actually responding to a signal and not leaking.

[@teemow5071]

that's a bloody good price. we use a mobile guy and he is $29 each

[@57jsanti]

Quick question do all injectors use 9 volts Bye the way great video thanks

[@Engineerboy100]

You should be able to actuate the solenoid of most injectors with 9 volts, however, in the car they are using 12 volts.

[@legtorama]

I like this video, and have already used it to get my engine running!

[@Engineerboy100]

sweet glad it was helpful. keep watching :)

[@ironfistarrival]

Hi there , thank you for the video , but you did not show how you made the set up from the beginning , and where the gas comes from and did you just tested the Injectors without disconnecting them from the Engine ? Or you did separate them ? And how you used a 9 V battery to do the testing ? Thanks !

[@Engineerboy100]

The gas came from the gas tank, the injectors remained connected to the vehicle. Please not that a fire extinguisher should be close at hand as danger of fire is quite real. perform at your own risk.

[@carlel4219]

nice video. thanks

[@s-dot-six2327]

is this Seth Rogan doing car videos on KZbin?lol

[@Engineerboy100]

S-DOT-SIX lol

[@cranky8oy]

Lol

[@5jjt]

Where did you get the wire and it's connection-end that you plug to the injectors? Thanks for the video!

[@Engineerboy100]

5jjt i cut the connector off a spare wiring harness

[@triparadox.c]

Or.. I think.. you could just connect the each end of the red and black wires to the metal plates. One for each. That should work as well since it's just a means to transfer electricity and power up the injector

[@SamsungJPrime-dm8gp]

sir if i have v12 engine . one side of the 6 cylinder have strong click sound from the fuel injector. and the other 6 have very low sound .. my injector stuck ? bad? plz help me tnx... btw its jag xjs 5.3 v12

[@Engineerboy100]

Loud clicking sound coming from injectors does not usually mean it is stuck. If a fuel injector is stuck you will have a misfire on that cylinder. Injectors do get louder sometimes as they get old but the clicking is not usually an indication of one being stuck. If the "clicking" is a short and the injector is not getting a clear electrical signal, then you should still have a misfire and the injector may be fine once it gets a clear signal. Hope this helps.

[@SamsungJPrime-dm8gp]

@@Engineerboy100 tnx for reply . ok and if 6 cylnder i can hear click from injectors. and the other 6 cylnders the click sound is more weak. that means that they bad?

[@dominante123]

Omg how did you just do that please show how you made that Conection please please please

[@Engineerboy100]

Just cut one off a car at the auto recycler. You can also just order one from a dealer etc.

[@drd6539]

Thanks for sharing. Awesome video. Quick question...did you leave the key on during the whole test, or just at first to pressurize the system? You lost pressure towards the end of the video and had to repressurize the system. Thanks in advance for any advice.

[@trackrunner11]

No , he didn't have too. He merely energized as needed by turning the key when he needed .

[@spartannation8981]

Hey man good video. This is simple. Dont know where all the hate is coming from. Same people hating obviously dont know what the fuxk they're doing or they wouldnt be watching the video now would they.

[@itr_cloud]

How did you get the injectors to stay onto the fuel rail when the fuel pump primes? Wouldn't they just come out because of the fuel pressure?

[@Engineerboy100]

There are clips that hold the fuel injectors onto the rail. I will do another video soon showing how to remove a fuel injector ;)

[@itr_cloud]

I am trying to test that my injectors are spraying but It doesn't look like they have these retaining clips for Honda's when I did a search online. I want to do the same test you're doing by leaving my injectors in the fuel rail then power each one via battery to see that they are spraying

[@Engineerboy100]

Call the dealer and ask for a fuel injector connector. Or go get one from any local auto recycling center.

[@haydenmilles6662]

How would I know if i need to replace them or just clean them? Would it be as simple as if cleaning them doesnt help then replace them?

[@Engineerboy100]

Yes, If cleaning them doesn't help, the short answer is replace them. By help we mean they should open and spray consistency, they should have a fine mist spray pattern and when closed, they should not leak.

[@chaudharyshumailabbas109]

Dear small problem in my car toyota carolla vvti engine plz guide me sometime my car will not start when i add hot water in rediator car will be start Please guide me what is this problem

[@bl0ckbust3r]

great idea!

[@MarkJones-sk6vk]

Nice setup.

[@Engineerboy100]

Thanks Mark.

[@haithamali74]

Hay man... you are introducing very useful video .. why you spoil it with darkness???

[@Engineerboy100]

Sorry for darkness, only time I have is after work and it's dark. I have more time now, will do better in the future. Thank you

[@nate8930]

Thanks Seth Rogan / Raymond.

[@judy_mireles]

So I dont need to change all 6 then? What is that tool u used? Also all injectors are the same right? Doesn't matter which i replace for a new one?!

[@Engineerboy100]

Yes they are all the same, and no, you don't need to change all 6 if only 1 or 2 are bad or clogged.

[@theothistledon6935]

Clint how often do fuel injectors need cleaning over their life of say 350,000 kms?

[@Engineerboy100]

Fuel injectors are not an item that should require regular service. If you put quality gas in your vehicle from good gas stations like Shell or Chevron, you should be fine for the life of the injectors. Otherwise every year or two should be fine. Here are some other suggested service intervals from chapter 20 of my book. www.dropbox.com/home?preview=Chapter+20+Tips+Techniques+and+Service+Schedules.pdf

[@theothistledon6935]

@@Engineerboy100 oh thank you Clint your a true champion. 😊👍🏻👍🏻 ❤❤ no homo. 🇦🇺 oh incidentally im from Australia. Our fuel brands are BP, Shell, Caltex, Apco, United ... oh you might be interested to know our fuel cost 1.66 AUD per litre. Next time you fill up with gas think of us. Lol 😂👍🏻 I dont use dropbox even though I have an account. Thank you kindly anyway Clint. I've never cleaned my fuel injectors and I'm now on 330'000 kms. I noticed a week ago it was sluggish to start. Almost like it was out of gas. Kinda weak without any power. Rough idle.

[@fullmindstorm]

This is awesome, and pretty smart.

[@mrtsautoxpress5752]

nice, where do i get the tool to test it with?

[@Engineerboy100]

The recycle yards.

[@naveedahmad2080]

excellent work

[@Engineerboy100]

Thank you Naveed! :)

[@fire7765]

great video

[@Engineerboy100]

Thank you, always trying to do better.

[@derail14]

does a bad ohm reading mean its clogged or the electrical solenoid is bad?

[@Ashroyer86]

Bad ohm reading only means the injector is bad, wont tell you if there is a clog. Make sure to unplug the injector from the harness before doing a resistance test for accuracy.

[@tac7901]

how do you check them if you dont have a rail ?

[@Engineerboy100]

If you don't have a rail, why do you need injectors at all?

[@takatsomaloka5218]

How do you clean the injectors?

[@Engineerboy100]

Well back then I replaced them, now I have an injector cleaner. I have a couple of new videos on that coming out next week.

[@soufidz800]

hi!! how much electrical supply did have the fuel injector??!

[@soufidz800]

isn't 12 v???

[@Carlos45062]

Very nice

[@Eurospec73]

Great video I've been really looking to remove and replace my fuel injectors and also do a test on them to see which ones are working and which ones are not I love the trick with the wire adapter and the 9-volt battery that's a perfect way to do it. 💪🙏🏁🏆 My question is how can you test them all at the same time?

[@Engineerboy100]

To test them all a the same time you could build or buy a injector testing rack and watch how they all spray and compare them. That is a good idea.

[@Eurospec73]

@@Engineerboy100 That's a great idea a fuel injector testing rack thanks Clint and Merry Christmas!🎄

[@mdbadalmiah6808]

Thank you Sir

[@CarDiagnosticBG]

commonrail.bg www.dieselcenter.bg injector.tech diesel-bosch.com дизелцентър.com

[@Engineerboy100]

Thank you for sharing, this is the real deal!

[@ironfistarrival]

Hi there , how did you get Fuel into the rail ? Did you disconnect the Fuel Fuse or not ? And i guess you have to disconnect the batteries too ? It is better to remove the injectors from the rail and test them on other place or a table . You did not explain the steps first ! thanks

[@Engineerboy100]

Just turned on the key to turn the fuel pump on.

[@javierdiaz5384]

im really late on this video but i have a problem on my honda civic almost something like this but my intake manifold is shooting gas out through the back of the intake manifold out of something that looks like a bleeder tube thats part of the intake manifold on the back bottom corner if you could help me i would apperciate it thanks

[@Engineerboy100]

Sounds like you have a bad injector that is somehow leaking into the intake manifold.

[@javierdiaz5384]

i will change all the injectors since i order a set already used but great condition i will update you later this week when they arrive and i install im a mechanic with 2 years of experience but never heard of this problem before

[@javierdiaz5384]

i was checking the maf sensor with my power probe and pressed a button on acxident witch was ground button in the probe maybe i fried the injectors and its shooting fuel somewhere else because theres a lot of gas in my oil and possibly radiator but i have then draining for 4 days already

[@Engineerboy100]

hopefully that will clear up the fuel in manifold issue.

[@pornokid333]

Please don't try this if your injectors don't have these clips... For example Toyota fuel rails. You will end up cranking the motor, fuel rail off...and all the injectors will shoot off with force.

[@kennedywong9854]

When turn ignition on, only 1 injector spray and harness not hook up. Is this bad injector?

[@lotwizzard1748]

did this fix your problem?

[@Engineerboy100]

The problem was a couple of slightly clogged injectors. This allowed me to find them and had spares so I just swapped them out.

[@lotwizzard1748]

@@Engineerboy100 thx. it shows what a big effect it has

[@helloguaj7262]

I just use a $100 code reader that doesn't go boom. 💥

[@truthtellor5144]

The injectors dont pop loose from pressure?

[@Engineerboy100]

No, they are still clipped onto the fuel rail. The black square things at top of the injector are retaining clips. If you slide those off then yes, the pressure would make the injector pop out.

[@stevenicholson2026]

I tried with mine off the battery even with 12v goin thru the injectors all i get is a small dribble of gas out of all 4 injectors idk the car starts but wont rev up.bad fuel pump?

[@Engineerboy100]

Well I would check the fuel pressure and work my way back wards from fuel injectors to fuel filter to fuel pump. Change the filter if it is old but I would remove the fuel filter and check the fuel pressure with the filter removed. if pressure is low, fuel pump.

[@Engineerboy100]

Turn the key on to re-pressurize the fuel rail.

[@stuartbear922]

Or, take them to a local shop that tests fuel injectors. It's pretty cheap. I believe they test using mineral spirits, not gasoline. Too dangerous!

[@Engineerboy100]

Yes, that is a good idea too, gas is very dangerous.

[@Doitforyoself]

How did yo u get your pressure to the fuel rail?

[@Engineerboy100]

turned on the key and pressurized with the fuel pump

[@Engineerboy100]

I got the pressure to the rails by turning on the key. I had turned the key off... that's why the pressure went down as I tested but the lines were still connected to the car, so I got my pressure from the fuel pump.

[@kubikso]

Hello sir. Hopefully you doing good. Just watched your video. Helps me a lot. Thank you. Leaving subscribe and like. Best regards from Poland

[@Engineerboy100]

Thank you Marcin, best regardsl!

[@tanzeelhaider4208]

Please help man...my ford bantam ,injectors all not spraying...please help

[@srv9235]

Great video man, that's pretty smart! Thanks!

[@F80__Los]

Mine don’t spray like this? But it runs

[@jonsixxx6569]

Doesn't the injector need 12 volts to run right

[@Engineerboy100]

Yes, while operating in a vehicle it needs the 12 volts to open quickly and spray the fuel. But for testing and cleaning, 9 volts is plenty. The fuel injector is simply a solenoid valve that opens when energized and closes from spring tension once voltage is removed.

[@qj3307]

I have to use 1000A charge to see it spray on my honda 90 outboard motor

[@feminismwrong]

Just blow injectors off rail?..mine are just pressed in..

[@johndoe-ok6jb]

dude u got to show how to removve the rail and clean them

[@Engineerboy100]

ok

[@johndoe-ok6jb]

thanks i glad to see some LOVE. THANKS.

[@cognac8297]

Did it run better

[@Engineerboy100]

Yes, I was just checking a new set that I was installing. They are actually still in the car to this day.

[@cognac8297]

@@Engineerboy100 that's amazing I liked your video the most out of ten

[@ramilekis-ing8987]

what are the symptom of dirty enjector.