Fuel injectors

Biku · 07-21-2005, 10:26 AM

My mom took her cavalier to a mechanic yesterday and it managed to come back with more problems than it left with. The mechanic claims that one of the fuel injectors split in half (she's able to run the car but it sounds really bad right now, and she can't go without the car) so after hearing this, I decided to do the job myself and check for the problem when she gets home from work later today.

The odd thing about this was that the mechanic was supposed to be fixing the a/c.... so how did the fuel system get touched? Other than that the belts needed to be replaced (they could be making the noise I guess) and one of the pulleys is supposedly making a noise.

So now for some questions...

1) To remove fuel injectors... you relieve the fuel pressure by turning a nob/valve on the fuel rail, then remove the fuel rail, then the injectors? Is that correct?

2) Anyone think that the mechanic is at fault here?

suprra_girl · 07-21-2005, 10:56 AM

agreed completely

if he was supposed to be fixing air con what the hell did he do to the injectors

and split in half

puleasee... you can't split injectors unless you take em out and smash em with a hammer.. and then to split them nice two pieces.. the odds of that are very low lol

is it leaking fuel?
if not then i would say fueling is ok

how is it running?.. missing? idling low?

ddmcse · 07-21-2005, 11:14 AM

maybe the guy means the electrical connector to the injector is cracked in half .

you are supposed to pull the EFI fuse while at idle. i did that once
ofcourse i didnt do it like twice and i don't recall much difference . you are gonna see gas dripping, should not be a surprise . it's not like gallons of gas with 30 lbs of pressure are gonna come flowing out when you loosen the rail hardware .

btw does the A/C work now ?

suprra_girl · 07-21-2005, 11:42 AM

oh yea LOL never thought of that

pull efi fuse at idle? if you want the car running that'll stall it lol

did i miss something.. or do you mean stationary still/idle not engine idling lol

i'm havin one of em blonde nites ya see

Biku · 07-21-2005, 12:27 PM

I forgot about something... something went wrong yesterday after he fixed the a/c and the car caught on fire (how could I forget this? :blink

and the problem was the fan clutch. I'm not sure what's wrong with that besides it catching on fire...

I'll have to examine the car a little closer when she gets home.

ddmcse · 07-21-2005, 01:17 PM

holy shit

oh yeah by the way the car caught on fire

..
the clutch fan caught on fire ?
when?
while at the mechanic's ?
after you took the car home ?

Biku · 07-21-2005, 02:22 PM

After my mom took the car home she was running the a/c at full blast right away (it hadn't worked for years I guess) and it caught on fire. She said it was blowing cold air though. <_<

Anyway, my mom took her car to the mechanic at work and he says it's the tensioner making that noise and that the injectors are fine. She does need some kind of fan clutch or something though. So thanks anyway guys, I'll ask more questions in case something else goes wrong.

h34r:

Poodles · 07-23-2005, 04:36 AM

Fan clutch is filled with oil, so it might be possible to catch on fire...but that's pretty insain...

I see you got a second opinion, good idea, sounds like the first mechanic was a bit shady

h34r:

07-21-2005, 10:56 AM	#2
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	agreed completely if he was supposed to be fixing air con what the hell did he do to the injectors and split in half puleasee... you can't split injectors unless you take em out and smash em with a hammer.. and then to split them nice two pieces.. the odds of that are very low lol is it leaking fuel? if not then i would say fueling is ok how is it running?.. missing? idling low? __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

07-21-2005, 11:14 AM	#3
ddmcse 500whp yet? Join Date: Jun 2005 Location: CT U.S.A. Posts: 966	maybe the guy means the electrical connector to the injector is cracked in half . you are supposed to pull the EFI fuse while at idle. i did that once ofcourse i didnt do it like twice and i don't recall much difference . you are gonna see gas dripping, should not be a surprise . it's not like gallons of gas with 30 lbs of pressure are gonna come flowing out when you loosen the rail hardware . btw does the A/C work now ? __________________ 300+ RW HP Dyno run, jdm,mod turbo,3"exh,electfan,greddyboost Blown HeadGasket info My Supra KiXGaS

07-21-2005, 11:42 AM	#4
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	oh yea LOL never thought of that pull efi fuse at idle? if you want the car running that'll stall it lol did i miss something.. or do you mean stationary still/idle not engine idling lol i'm havin one of em blonde nites ya see __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

07-21-2005, 01:17 PM	#6
ddmcse 500whp yet? Join Date: Jun 2005 Location: CT U.S.A. Posts: 966	holy shit oh yeah by the way the car caught on fire .. the clutch fan caught on fire ? when? while at the mechanic's ? after you took the car home ? __________________ 300+ RW HP Dyno run, jdm,mod turbo,3"exh,electfan,greddyboost Blown HeadGasket info My Supra KiXGaS

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07-21-2005, 10:26 AM	#1
Biku Stock Join Date: Jun 2005 Posts: 26	My mom took her cavalier to a mechanic yesterday and it managed to come back with more problems than it left with. The mechanic claims that one of the fuel injectors split in half (she's able to run the car but it sounds really bad right now, and she can't go without the car) so after hearing this, I decided to do the job myself and check for the problem when she gets home from work later today. The odd thing about this was that the mechanic was supposed to be fixing the a/c.... so how did the fuel system get touched? Other than that the belts needed to be replaced (they could be making the noise I guess) and one of the pulleys is supposedly making a noise. So now for some questions... 1) To remove fuel injectors... you relieve the fuel pressure by turning a nob/valve on the fuel rail, then remove the fuel rail, then the injectors? Is that correct? 2) Anyone think that the mechanic is at fault here?

07-21-2005, 12:27 PM	#5
Biku Stock Join Date: Jun 2005 Posts: 26	I forgot about something... something went wrong yesterday after he fixed the a/c and the car caught on fire (how could I forget this? :blink and the problem was the fan clutch. I'm not sure what's wrong with that besides it catching on fire... I'll have to examine the car a little closer when she gets home.

07-21-2005, 02:22 PM	#7
Biku Stock Join Date: Jun 2005 Posts: 26	After my mom took the car home she was running the a/c at full blast right away (it hadn't worked for years I guess) and it caught on fire. She said it was blowing cold air though. <_< Anyway, my mom took her car to the mechanic at work and he says it's the tensioner making that noise and that the injectors are fine. She does need some kind of fan clutch or something though. So thanks anyway guys, I'll ask more questions in case something else goes wrong. h34r:

07-23-2005, 04:36 AM	#8
Poodles 12psi boost Join Date: Jul 2005 Posts: 348	Fan clutch is filled with oil, so it might be possible to catch on fire...but that's pretty insain... I see you got a second opinion, good idea, sounds like the first mechanic was a bit shady h34r: