How To Replace Fuel Injectors - GM 3.1L 3.4L Engine
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- Äas pĆidĂĄn 10. 09. 2024
- How To Replace Fuel Injectors. This is a little DIY project that was a long time coming. In this video you will learn how to get to your fuel injectors, how to remove old fuel injectors and replace them with new ones. The engine fuel injector location is pretty common in most cars.
In my Chevrolet Lumina which has the GM 3.1 (3100) SFI V6 Engine, they were located underneath the air intake manifold. In most cars this DIY project will be more simple. Watch the whole video for the Fuel Injector Replacement.
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AutOdometer was previously MCRC (My Car Repair Channel)
Disclaimer: Each video that is produced and published is intended to be educational. Tips and tricks will be offered for your viewership. The outcome of your car repair is solely your responsibility. Research and a good thought process should be completed before each repair.
best info video on you tube. Thank you from a professional.
As a note to others watching. These spark plug wires CONSTANTLY break off when removing the end that goes to the spark plug. I highly recommend only pulling off the ends attached to the coil and flipping it over the front bumper. Still well out of the way and you wonât end up making a trip to the parts store!
Great idea
Dude thank you for that tip cause my car is in the middle of the woods with a fuel issue and Iâm broke from this mf car that I got 2 weeks ago đđđđđđ«
You made it look so simple which it is when you know what you're doing I didn't lube the o rings and when I put it all back together and started it fuel sprayed everywhere got new o rings lubed them an it all worked out
great comment
Good video. I do wish you showed each step completely, and the reassembly.
I agree
I Lot of work. Could become complicated. I will leave that up to the Specialist. I might break a nail. Thanks for sharing.
Winnie.
Good video a little black rectangle piece in the back was the map sensor
The radiator system... Good one!
You didnt film any replacement of the subject! I wanted to see the fuel injector replaced!
Brake booster hose.
MAP sensor.
Fuel rail
That's what they are not hatting just helping out.
I for some reason could not think of fuel rail while editing! Yes the brake booster hose now makes sense. If I would have went back into the engine and taken a look. It was a long time between doing this job and actually editing it and putting it on YT.
So Iâm guessing the MAP sensor you are speaking of is the little unit box connected to the fuel pressure regulator with that thin hose. I actually did not know that thank you.
Thanks for helping. People who hate I donât let get to me because most haters donât ever even try to make videos themselves to help others out
@@AutOdometer yupp thatsbthe map sensor that connects to the fuel pressure regulator if I'm not mistaken that hose sucks vacuum into the map sensor and then the engine. Also, for next time there is a specific way to remove and put back those bolts from the intake manifold. If you don't do it in the specific cris-cross method it'll tear/break the intake gasket hence another leak. But great job for your first timeđ
The o rings can be lubricated with a slight amount of engine oil. Eases insertion of the loaded fuel rail. Also that line that hooks to a hard line is a for the transaxle's vacuum shift modulator (4t60-e).
Call me insane, but I'm looking forward to doing this on my own car! Good video. Thank you!!
Me toođ
SAME! Doesn't look too bad really.
Great video thank you
That little contraption is a MAP sensor. Manifold Absolute Pressure.
4:48 I don't think that's your fuel regulator. That is your MAP (Mass Absolute Pressure) sensor...
Yep. I just replaced mine two weeks ago. Also, the fuel regulator sits at the end of the fuel rail. đ€
GREAT video! Now I know what I'm up against so I can make some informed decisions. Thank you!
Thanks for watching. Good luck on your projext
what sizes are the bolts you took off
I couldn't find my fuel rails, tore it apart in last fall so now end of june 2022 oI have a 3100 sfi l-82
in a 1995 Pontiac grand prix found some on ebay and with the stuff that would of been connected
to it like wiring and tubing and some injectors But it says Grand Am 94-98 will those fit my 1995 3100?
AT 5:00 YOU FORGOT TO TELL EVERYONE YOU REMOVED THE 2 13MM BACK BOLTS ON THE COIL PACK BRACKET. AND DID YOU DO ANYTHING TO THE FUEL LINES TO THE RAILS?
What was the part you took off at 2:42 I have a gas smelling fluid coming out of there and idk the name of that part
Probably a bit late now, but that is the fuel pressure regulator. Might help the next guy though.
If you took that hose off of your fuel pressure regulator and smelt gas thatâs sometimes a sign thatâs it bad. It has a diagram inside that sometimes goes bad. It can give misfires, ruff idles and sometimes your car wonât start right away or die after a few seconds.
P0205 which one is injector 5 why are they so hard to come out fuel rail dismantled already
Excellent video !
My car wonât start after I changed the injectors. Same car. Any ideas why.
Oh great! I'm in the middle of putting my engine back together after replacing head gaskets. (actually just needed to replace intake manifold gasket - they're the ones that actually go bad and leak coolant into engine, but what the heck, I was already down there). I'm wondering if I've got the injectors seated correctly. Going back to check it out this morning. Do you smell gas? Maybe you didn't push them in far enough? He didn't really show replacing the things (injectors) on the fuel rail. Could be easy to get them not aligned properly. They said in one video you have to pressurize the fuel rail by holding the key to ignition to the right a few seconds and do that several times before trying to start the car. Please post your solution. Good luck
I did notice on another video that the injector electrical leads are supposedly numbered, so they have to go to the correct injector. I've got to go back and look now to see if I accidentally got them put in the right place. Probably not
if that gasket gives too much grief, switch out the 12 that surround each runner to studs and flanged nuts. I'd go grade 5 and look for ones that are turned to a diameter on one or both ends. You'll see that alot on bolts that screw into motors, castings specifically. Reason being a full thread, bottomed out then REEFED DOWN can (usually does) crack the casting....maybe not right then and there, but run a few heat cycles through it so when you're on that 700 mile trip to see Gran-Gran, intake (in this case) cracks through, allowing way more air than it should, thus making that cylinder more lean than a 70's Arnold Schwarzenegger (with equally catastrophic results).
The little flat square black piece is a map sensor
Great job!!
Thanks for watching!
Can the pressure regulator leak fuel
Good video
4m48s This is the MAP sensor.
Can this work for a Chevy equinox?
Spark plug plugs
Are the fuel injector cylinders numbered? Cause im getting a code that says fuel injector cylinder 2 fail or something like that
Was it the âcylinder 2 misfireâ code? Im getting that only on startup for about 30 seconds then it runs normal. Its on a 2000 grand prix 3.1
@@hunterrandolph2036 probably leaking down slowly into the cylinder so there is too much fuel at start up but as it burns off and gets pushed out it is fine. That will last till it starts flooding all the time then it will really start breaking things.
I did notice on another video that the injector electrical leads are supposedly numbered, so they have to go to the correct injector. I've got to go back and look now to see if I accidentally got them put in the right place. Probably not
yes the wire plug to the injector does have a number 1-6 for me and there is a stamp on the lower intake so match it
2:23 what is that piece he removed? I found that piece in my trunk of this car I bought recently on craigslist
PCV hose (positive crankcase ventilation)
@@patrickmcmahon1110 oh man. Thank you for that bit of knowledge. So my engine shook pretty bad when I started it the other night. I can't wait to get a diagnostic tomorrow or the next day.
â@@DennisonS what was the diagnosis?
How can you tell which one is bad
By any chance do you know what the connector located just behind the alternator is?
I had varmint get into engine and feast on that connector. Now I'm having electrical issues, I'm trying to figure out what is so I can replace?
Is it in the video? Where does the connector lead to in you car. My guess is it may be a coil pack connector, but make sure you follow the wires and tell me where they lead. Unless youâve already got it fixed lol.
@@THEOLYMPIAGUY360 lol like a fround of your talking about the ground connector bolt
@@austinporter4285 no itâs not a ground, Iâm not sure how many wires it is but itâs like a 6 wire connector.
@@braydinjones6301 no not fixed itâs a multi wire connector. Whatever it is, is causing a short in interior dimmer and turn signal.
there are many differences between the 3.1 and 3.4 that this videos doesnot cover for the 3.4
my mechanic never needed all those. change what gaskets. it only cost $40.
Its a map sensor
Sorry. If I am going to learn how to do repairs, I want someone who knows the names of all the parts.
idk what's wrong with my car. someone please give me some advice.
That's not very specific! I did notice on another video that the injector electrical leads are supposedly numbered, so they have to go to the correct injector. I've got to go back and look now to see if I accidentally got them put in the right place. Probably not.
I played this video to see how you remove the fuel injector, but you skip that part in the video.
So. The video is not helpful for me.
Thank you
He describes the process with a close up picture quite plainly, pointing out clearly the extraction method.. If you cannot figure it out from that, perhaps you are not the one to be attempting a job like this.
@@richardthelionheart01 He didn't mention how to actually take the injector off passed mentioning the o'ring. Which is the part I'm currently stuck at. I'll figure it out but he did actually skip that part.
@@heathencake9110 right! I'm wondering if I got them a little crooked, because they don't seem to be seating properly. Now I'm going back to fiddle with the alignment of them. I ended up losing a couple of the clips and had to go to the junkyard to get more. (they do have them at oreilly, but you have to wait two days to get them.
see reply below. same problem here. never as easy as in the videos!!!
I did notice on another video that the injector electrical leads are supposedly numbered, so they have to go to the correct injector. I've got to go back and look now to see if I accidentally got them put in the right place. Probably not
Thats a map sensor
This guy shouldn't be posting videos, get your automotive terminology correct BEFORE posting. And counting the hardware was just too much! đ€Ł
Bogus from the git go. As you pull spark plug cables you do not label what cylinders they are going back to. That would be a problem of misfire at the end especially when spmeone is working with V8 engines.
I just marked the top of the loom holding the spark plug cables, they are connected left to right aslong as you know which side of the loom was up when you started you shouldnât have any misfires. Thatâs a poor explanation but I canât think of a way to phrase it better.
Not bogus. 1, itâs not a V8, 2, the back plugs are 2,4,6 from left to right and the front is 1,3,5 from left to right. If you canât figure that out you probably shouldnât be changing your fuel injectors. đ