bad injectors

mr_jones71 · #1 05-30-2005, 08:37 PM

so ive got a 94 camaro with a 3.4 v6 and its leaking gas form one of the injectors. i have the new o rings for the injector but i dont know how to get the fuel rail off so i can take out the injector. if someone could help it wold be fantastic
thanks

cuda_dude · #2 05-30-2005, 09:04 PM

just take the bolts out of the fuel rail, take off the wireing harnesses on the injectors, pry the fuel rail up and your injectors will pop right up with it... do what u need to do, and pop the injectors and the fuel rail back in ... done..

cuda_dude · #3 05-30-2005, 09:06 PM

forgot to add that the fuel injectors have metal clips on them that hold them to the fuel rail... if u want to remove the injector from the rail you need to pop off the clips

Latexicon · #4 08-08-2005, 03:04 PM

I have a similar problem as Mr. Jones but did not find 'Cudda's post very helpful... on the 3.4SFI Camaro V6 engine a cast intake manifold surrounds the fuel rail so I started by tyrying to remove it... 8 long bolts out of the block and 3 hours later, I still can't get it out of the way so I've come to the web for help. The injectors (3 per side) go off at approx. an 120 degree angle and I don't see how one is supposed to just 'pop' any of them out of a 1 piece fuel rail... especially now that everything's loose and still nothing wants to come up out of there. HELP !!

Thanks in advance...

Rally Sport · #5 08-08-2005, 03:10 PM

Very lucky almost 3 months, but close.

wrightz28 · #6 08-08-2005, 03:10 PM

No offense,

get a manual before you hurt yourself.

Again, no offense, but 50 psi of fuel pressure is not a fun discovery to make.

Latexicon · #7 08-08-2005, 04:20 PM

If either of those posts was supposed to be helpful (or funny) I don't get it... warning about dangerous fuel pressure any reasonable length of time after the engine shuts down (like the next day) is appreciated but not very applicable if you understand that I'm asking advice on how to remove an injector that's leaking fuel all over the block to begin with.

wrightz28 · #8 08-08-2005, 04:26 PM

I clearly said NO OFFENSE, not ONCE but TWICE.

Good luck.

Viper_Storm · #9 08-08-2005, 04:28 PM

Quote:

Originally Posted by Latexicon

If either of those posts was supposed to be helpful (or funny) I don't get it... warning about dangerous fuel pressure any reasonable length of time after the engine shuts down (like the next day) is appreciated but not very applicable if you understand that I'm asking advice on how to remove an injector that's leaking fuel all over the block to begin with.

the 1st post by rally sport is becasue you brought back and old thread, they dont like when ppl bring back old threads...

2nd post (im not to sure about this one but as far as i can tell he means this

, if you try to remove that injector with pressure in the line and it comes out, thats gonna be 50psi of fuel thats gonna prob end up hitting you in your face or some place you really dont want it to go...

Latexicon · #10 08-08-2005, 04:52 PM

Thanks Viper for trying to help, but I find the very idea of dissing someone who revives an old thread when the original question has yet to be answered, rather moronic. Sounds like the best way to spread knowledge to me - isn't that what the web is for? As to the fuel pressure issue, I appreciated the warning (and said so) but the fuel pressure was down to zero within a few minutes - let alone the next day. What I really need is someone who's actually figured out how to get the fuel rail up out of there without breaking 2 or 3 injectors in the process. Also, I've paid good money (near $100) for GM service manuals in the past and all they did was list body part numbers and tell me how to rotate tires... nothing about servicing the engine.

blindeyed · #11 08-08-2005, 05:27 PM

Latexicon, there are two bolts on the fuel rail that you're going to have to take off. One towards the rear, and one closer to you. They're on the lefthand side. If you can manage to get those off, since there is very limited room to work in, then you can pop the fuel rail up. Just give it some pressure when lifting up, and it should come right out. The intake manifold is probably going to be somewhat in your way, but try to do whatever you can so as to not have to remove it. There are about 10 bolts holding that sucker down and they aren't the easiet to get to and get out.

Mr. Luos · #12 08-08-2005, 05:31 PM

Quote:

Originally Posted by wrightz28

but 50 psi of fuel pressure is not a fun discovery to make.

Ever have a valvespring compressed without locks fly outta the compressor??

Took a while to find the retainer. I got lucky.

cuda_dude · #13 08-08-2005, 05:39 PM

even after you get the bolts out of the fuel rail its in the injectors pretty good.... it always feels like its bolted on there still but it isnt... you can take a screwdriver and gently pry up on the fuel rail untill you get the injectors to start poping out... if you take your time you wont hurt anything..... hope that helps

Latexicon · #14 08-08-2005, 06:32 PM

Thanks to everyone who posted a helpful comment... I still don't see how injectors that are 120 degrees apart can let you pry a common fuel rail up without breaking something but evidently the O-Rings are in shallow enough to let it happen. Great site... keep it up!

blindeyed · #15 08-08-2005, 07:27 PM

Quote:

Originally Posted by Latexicon

Thanks to everyone who posted a helpful comment... I still don't see how injectors that are 120 degrees apart can let you pry a common fuel rail up without breaking something but evidently the O-Rings are in shallow enough to let it happen. Great site... keep it up!

Yeah, they pull right out. Trust me, I had to do it on my other engine I bought (which was another 3.4). It's like trying to pop a cork out of a wine bottle almost. You pull hard enough, then it finally pops out.

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