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how to test / change a coil pack on a GM straight 6

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how to change a coil pack on a GM straight 6 engine. This video also briefly covers how to fix an oil leak on the spark plugs.
The trailblazer / envoy was running very rough, did not want to idle, check engine light was on. Multiple codes displayed.
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27 авг 2024

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Комментарии : 63

@carleyford3498 6 лет назад

Very informative and not overbearing like most videos, thank you!!

@KimberlyCaresForU 7 лет назад

I was raised working on cars and I AGREE with your closing thoughts. It is always best to know your vehicle as well as possible. Thanks for the video...👍👍🚘

@Aresfire2 3 года назад

I liked how you included bolt sizes with your complete multi meter trouble shooting.

@jrmorrow7 7 лет назад

Thanks for a well done video! I learned how to test my coil from you and it was ok, just water in the coil chamber!

@iceekilla6013 2 года назад

Pretty common. Which coil? 5 or 6 usually get moisture on them. I just changed 5 and 6 but about a yr later I just got same code again. I'm about to change all the spark plugs just because I haven't changed then in awhile. But I guarantee I need to replace those damn coils again.

@1968maz 8 лет назад

Thanks for the information that helped me out, my Code reader did the same thing now i know what to look for.

@harrisonhamilton13452 3 года назад

Thanks for the video, my code reader says engine misfire but doesn't say which cylinder, I was looking for a way to test the coil packs out of the car and you delivered

@iceekilla6013 2 года назад

3001 is cylinder 1, 3002 is cylinder 2 and so on. But 3000 is going to be multiple cylinders

@carloscubillos6159 7 лет назад

Thanks for the information, was very usefull. I change No 1 coil and my TB is running ok

@frederickgaydusek4712 2 года назад

When saying check the third terminal. Would appreciate a close up of plug and where you start #1

@iamrichmamaroses882 6 лет назад

As a Mechanic's daughter.. I've learned to change a few parts on my own over the years and have successfully changed several coils in my Straight 6 GMC but still haven't replaced all of them.. thanks for posting.. but will you please also add a link for the type of code reader you used so I can test out the rest of the coils to know which one is bad. Before the change engine light comes on?.. I would so appreciate that. Kudos..

@CreativeMechanic 6 лет назад

I used a multi meter for testing the coils, you can find them at harbor freight

@bmead144 4 года назад

When did GM start putting "change" engine lights on'em!? Lol!

@Anonymous-it5jw 5 лет назад

Thanks for making this video.

@AskRemy 3 года назад

good camera work - good info

@abrahamvaro5482 Год назад

Nice video ,thanks!!!

@teresaashford5806 7 лет назад

Thank you! This was very helpful! .

@stevedodson24 7 лет назад

what would your opinion be if you replace the spark plug and the coil that was misfiring with new and it still misfiring

@sticksentertainment 5 лет назад

Steve Dodson I know this is an old question, but I’m going to answer it anyway... If a new spark plug/ignition coils doesn’t correct the misfire in that particular cylinder, then the next thing I would do is conduct a compression test just to rule out any leak down issues. I would follow the compression test with using a bi-directional scan tool to manually turn the fuel injector off for that cylinder while the motor is running. If the engine bogs down and idle speed changes, then the injector is working. If there is no change in idle, then the fuel injector is to blame. Another common issue with the LL8 atlas I6 is intake manifold bolts coming loose causing a vacuum leak which in turn causes misfire.

@bmead144 4 года назад

@@sticksentertainment no individual injectors on this engine_ throttle body injection.

@lorettakleeves9269 3 года назад

New coil pack and plugs put in a2004 GMC 5.3 sierra all are working except two that have no power any suggestions

@travisland8465 4 года назад

I'm trying to find the right coils for my 2007 trailblazer.

@raulrazo6325 6 лет назад

What kind of silicon was it cuz my envoy had the same problem

@Thumper68 3 года назад

RTV gasket silicone just ask any parts store

@may03LT 2 года назад

why do they call it a coil pack i mean i open box and it pack of one so i sent back and left nootral feedback i am scared

@prospexican Год назад

just show how to test it, no need on how to take them out lol i keep watching

@kens3325 8 лет назад

i have 4 that show ohms on the 1st and 3rd pins, and 2 that only show on the 3rd post

@A.D455 5 лет назад

I just changed the spark plugs on my 2004 gmc envoy 1 had oil an the code says random misfire

@iceylee2947 2 года назад

My 2003 chevy trailblazer saying the same cylinder 6 coil pac

@ironfistarrival 6 лет назад

Hi there , so finally does your engine burn oil ? Otherwise why there is oil present in the Spark area ? Maybe you need to change the head gasket too ?

@CreativeMechanic 6 лет назад

Its from the valve cover. Very slow leak

@bjenks2 7 лет назад

what if your trailblazer obd2 port isn't working and it's not the cigar fuse? Also I have a misfire on cylinder 3. I swapped the coil and the cylinder is still dead. Bought a new spark plug and it's still shaking at idle. Already cleaned the throttle body too. Please help

@troyaf 7 лет назад

Did you ever get to the bottom of it?

@tonytew8830 2 года назад

Ok I did all that but still have a #6 chl mis fire. New plug gapped at.042

@CreativeMechanic 2 года назад

Check compression

@awakenotwoke2643 2 года назад

I saw some vids where the firing order is different,as in #6 is actually in #4 position,maybe try switching those two??

@OldSkoolF 3 года назад

The wiring harness is very commonly bad.. The insulation is latex based and prone to rodent chewing and corrosion inside the wrapped harness... Especially the coils and injectors.. Don't even get me started on blower control.

@xESPplayer500x 2 года назад

RTV was a bad idea bro you gotta clean it out every time you change the coil pack now or it wont seat correctly

@CreativeMechanic 2 года назад

Yeah… the 2 times you gotta do it over the life of the vehicle

@JusDidit-rs3te Год назад

What did you have your meter set to? Looks 300v???

@estradamiguelangel2477 6 лет назад

There's any way to fix coils

@sfh2050 2 года назад

when I removed the plug the top head was entirely missing from the plug, God knows where it went, hopefully not inside the engine.

@brianfisher8829 Год назад

My coil pack is good but it still misfire in cycle 6 let

@CreativeMechanic Год назад

Knock sensor, cam position sensor

@toddvistain8179 Год назад

Nooice!

@iotdude 7 лет назад

Hat off 🤘🏻

@ProjectCarTV 3 года назад

nice

@fuckcensorship69 2 года назад

2:00

@juans6639 6 лет назад

In the future, please leave ALL music in the background off. It is distracting and NOT useful. Thanks

@joshserna5299 5 лет назад

Why?? It makes me horny as Fuck

@joshserna5299 5 лет назад

Fuck you, it makes me horny

@sprtplt Год назад

What is with the annoying and unnecessary "music"??

@CreativeMechanic Год назад

My video my rules

@Justme-cn6eh 2 года назад

Really not that informative. Test for continuity ok and ya just skip on how to test ohms

@CreativeMechanic 2 года назад

Keep commenting

@sagitario12ish 5 лет назад

You speak so fast man, I don't understand your worlds.

@CreativeMechanic 5 лет назад

lol, newer videos have fixed this problem

@sknerl 5 лет назад

You can physically slow the video speed down in the upper right

@sknerl 5 лет назад

There are videos which go twice this fast...you’re trying to catch a picture that shows 2 seconds lol. My son showed me and yeah, this xer now feels old. I got techspaned by a 15 year old.