Testing Fuel Injectors Fast

How to test fuel injectors for pulsing. Learn how to check fuel injectors. I use a screwdriver to test fuel injectors to make sure they are firing. You place a long screwdriver to the base of each injector and put your ear to the end of the screwdriver (like a doctors stethoscope). You should hear constant clicking. If not, then your injector isn't firing or is firing intermittently.
Symptoms of bad injectors are a check engine light with codes P0300 through P0308, misfiring, hesitation, poor fuel economy, stalling, and a poor idle.

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Disclaimer:
Due to factors beyond the control of ChrisFix, I cannot guarantee against improper use or unauthorized modifications of this information. ChrisFix assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. ChrisFix recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of ChrisFix, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not ChrisFix.

[mishagdon]

OUTSTANDING VIDEO. I already knew how injectors function, yet I have to give you a lot of praise for going the extra mile and showing people the cross section of an injector with the solenoid.

[whomadethatbeat]

I’ll be honest, I was skeptical but tried it out. One of them wasn’t clicking. Swapped it out and BOOM!! 92 Cadillac Coupe is smooth again. Thanks bro!!!

[mattdoughty]

I enjoy how you figured out that you could place the camera against the screwdriver so the audience could actually hear the clicking. Simple detail with a large effect. Well done.

[dnlmachine]

Great videos.  I am a mechanic and machinist and its really good to see youngbloods doing it right and doing it for themselves.  Also the diagnosis progression you show is really nice too.  This is not something you will ever get from a dealer.

[mofrogamericanjedi]

Love your simple and direct how to's man. Ive been wrenching for years and youre by far the best instructional ive found! Keep up the gopd work and thanks again

[ThomasDSullivan]

Hey Chris Fix..
Job well done, NO LIE'S, No BS, Keep up the GREAT WORK.

[MrJonathanCervera]

Chris, you're videos are extremely helpful, all of them. Thank you for doing what you do. Cheers brotha.

[rayman]

This was a life saver. I knew it was my fuel injectors but didn’t know how to test it, and which one. This helped out a lot. Thank you

[grzegorz]

That is just brilliant. I did leak off test on my diesel injectors and it looked good. Tried this method (had to figure it out myself...) and one wasn't clicking!!

[EthosRose]

Hearing it made my day, no BS thank you for actually doing good work and teaching in a simple yet exceptional way!!! Skal

[mattlehnardt]

you are a natural teacher, caue you're clear and think it through, and explain it that way, from a laymans perspective, rather than assume people already know all about it and you drown them in technical terminology.

[lilredog]

This is awesome. I told my husband that I heard this sound prior to him listening, he didn't believe me. You proved me right!!! boooyaaa! Thanks man!

[arielmontoya]

Thank you for the clear and simple way of explaining without leaving out any details . I enjoy all your videos and often learn as I am new to this 😎 muchas gracias señor Chris .

[Naruu]

Changed my ignition coil since I was getting P0303 and done. No more car hesitation nor error found, thanks!

[OliverGatch]

ive used this method too, listening to engine sounds especially on the timing chain part and bearings about to get worn out! its helps a lot of money and time before removing anything or buying some parts that might be the issue but turns out its not.Great video Chris!

[happyrainbows]

The best video on here! Quick and to the point with an excellent general explanation of everything going on!

[iafmehdi]

My neighbour saw me doing that, he never asked me something since then

[mollyb]

I have to say, I really appreciate your videos. You break things down in a very easy to follow manner!

[duanepless]

This was very helpful for my 2010 Cobalt ss. Thank you so much. God Bless

[mikea]

Was looking for fuel injector videos for my 89 ranger with the 2.9 all over YouTube... Should have known better and just went straight to your page. Thanks for all the content Chris!