ok guys, i have a leaky fuel injector...a couple questions....is it ok to use a used injector, or are they cheap enough that i should just buy new? and i can change just a single injector right? and possibly if someone could describe removing it...lol, i really need a haynes manual!
btw this is a 96 sunfire 2.2 5 spd
Injectors are very expensive. They normally cost over $100 for each one. Yes it is okay to replace just one.
I havent seen the underhood of your car. But to replace them you
- relieve fuel pressure, remove fuel pump fuse start car it will die - good
- unbolt the fuel rail
- I'm not sure how the injector is in there, sometimes they just pull out of the fuel rail
- replace the lower O rings on all the injectors while you have them out - the seals tend to go bad overtime, its ten years on your car, when they go bad you will have a vacuum leak, so best to replace them while you can easily, only like $10 for the O rings
good luck
- 2004 Cavalier - 124k, owned since new
Shifted wrote:I just bought 8 O-Rings, set me back a whole $0.56. Change both the upper and lower o-rings on the injectors.
damn .56, they got me for $10 on my old car
- 2004 Cavalier - 124k, owned since new
Rob S wrote:Injectors are very expensive. They normally cost over $100 for each one. Yes it is okay to replace just one.
I havent seen the underhood of your car. But to replace them you
- relieve fuel pressure, remove fuel pump fuse start car it will die - good
- unbolt the fuel rail
- I'm not sure how the injector is in there, sometimes they just pull out of the fuel rail
- replace the lower O rings on all the injectors while you have them out - the seals tend to go bad overtime, its ten years on your car, when they go bad you will have a vacuum leak, so best to replace them while you can easily, only like $10 for the O rings
good luck
ok, thats sounds easy! one question that i still have though...is it ok to replace the leaky one with a used injector? i have access to a parts car...
Ok 96 2.2 has bottom feed injectors. There is no fuel rail. If its one of the 2 end injectors, and I suspect from experience it might be the #1 injector (closest to the passenger side of the car) Its easiest.
1. Just remove the accel cable, bracket and fuel injector holder.
2. Disconnect injector and pry out injector (screwdriver works fine)
3. Grease up new o -rings (petroleum jelly works best)
4. Seat injector all the way back in. Its NOT ok for it to not be fully seated flush with the intake manifold. If it doesnt seat all the way you WILL flood your engine and lock it up.
5. put back everything.
6. Start car.
Vinay Mal wrote:Ok 96 2.2 has bottom feed injectors. There is no fuel rail. If its one of the 2 end injectors, and I suspect from experience it might be the #1 injector (closest to the passenger side of the car) Its easiest.
1. Just remove the accel cable, bracket and fuel injector holder.
2. Disconnect injector and pry out injector (screwdriver works fine)
3. Grease up new o -rings (petroleum jelly works best)
4. Seat injector all the way back in. Its NOT ok for it to not be fully seated flush with the intake manifold. If it doesnt seat all the way you WILL flood your engine and lock it up.
5. put back everything.
6. Start car.
sounds like you know wut you are talking about, because it is indeed the #1 injector! i will follow your directions, and hopefully it is easy...
Vinay Mal wrote:Ok 96 2.2 has bottom feed injectors. There is no fuel rail. If its one of the 2 end injectors, and I suspect from experience it might be the #1 injector (closest to the passenger side of the car) Its easiest.
i have exactly this model, but unfortunately my #2 and #4 are leaking. i'm quite sure it's the o-rings just because the engine was recently overheated, and the 2 began leaking immediately afterwards. i know the intake must be removed, i've never done a job this big before, but here are the steps i'm going to go through - i'd love any advice!
- remove fuel pump fuse
- start car (and let die)
- perform steps 1 through 6 from
this removal guide
- remove injector retainer bar thing (plenum?)
- pop out each injector
- replace top o-ring with engine-oil-lubed new one
- replace bottom o-ring with non-lubed one??
- replace injectors
- reverse intake removal from above
now from
this image the top/bottom o-rings are different sizes, any idea what the bottom size is? and how much force is too much when removing/replacing?
I also have a 96 that had a leaky injector.
1. I did not have to remove the intake. The #3 is a bit tricky, but can be done without too much trouble without intake removal.
2. My #1 injector was leaking. Replaced seals on all 4, but a few months later, #1 was leaking again. Replaced the injector as well the 2nd time and now all is well a year later. I used a new one as I was concerned that a used one might suffer from the same problem as the one I was removing. I spent the big bucks to get a new one . I got mine from NAPA.
Rob S wrote:Shifted wrote:I just bought 8 O-Rings, set me back a whole $0.56. Change both the upper and lower o-rings on the injectors.
damn .56, they got me for $10 on my old car
.56... 10 bucks... damn mine cost 34 for just the o-rings(dealerships are expensive) but mine keeps flooding how do i remedy this???
oh and also it is my #1 cyl
I'm not sure, but for $.56 I doubt you got fuel resistant O-rings. If they're normal O-rings, they will eventually fail. Just a heads up.
As far as replacing the injectors, I always had a problem getting the pressure to bleed off by removing the fuel pump fuse. The car would just keep running (barely). Maybe I've got another problem?
Anyway, I ended up taking the line loose at the pressure regulator & letting the gas fly (relieve fuel pressure) before I took off that injector hold down bar. FWIW, I used Vaseline on the new O-rings.
I will tell you I bought GP Sorenson brand at the local parts store and had nothing but problems with them. Fouled spark plugs, CEL, poor idle, etc & that was just from changing 1 fuel injector. The new injector should come with the correct O-rings, I believe. Good Luck.
Daniel Smith wrote:Vinay Mal wrote:Ok 96 2.2 has bottom feed injectors. There is no fuel rail. If its one of the 2 end injectors, and I suspect from experience it might be the #1 injector (closest to the passenger side of the car) Its easiest.
i have exactly this model, but unfortunately my #2 and #4 are leaking. i'm quite sure it's the o-rings just because the engine was recently overheated, and the 2 began leaking immediately afterwards. i know the intake must be removed, i've never done a job this big before, but here are the steps i'm going to go through - i'd love any advice!
- remove fuel pump fuse
- start car (and let die)
- perform steps 1 through 6 from this removal guide
that guide goes a little further than you need... honestly, all you need to do after relieving the fuel pressure is
Quote:
- remove injector retainer bar
- pop out each injector
- replace top o-ring with engine-oil-lubed new one
- replace bottom o-ring with non-lubed one??
- replace injectors
and then replace the retainer bar. like said above, make sure they're seated properly else you'll flood and lock your engine. put the fuse back in and re-prime your fuel system. you do not need to remove the intake plenum, not only is it a waste of time, but you'd then have to replace all those gaskets.
JBO Stickers! Get yours today!
Rich Grayo Jr. wrote:and then replace the retainer bar. like said above, make sure they're seated properly else you'll flood and lock your engine. put the fuse back in and re-prime your fuel system. you do not need to remove the intake plenum, not only is it a waste of time, but you'd then have to replace all those gaskets.
good thing i didn't do the job yet, that would've really sucked. but just to double-check, the smaller bottom o-rings don't need any lubrication?
also, what would re-priming a fuel system consist of?
Just turn the key from off to run (not start) a few times and wait for the fuel pump to run and cut out. The is usually suffucuent to get fuel up to the injectors. Should start up fairly easily after that.
