Leaky injector question
Thread Starter
3rd Gear
Joined: Jun 2003
Posts: 3
Likes: 0
From: St. Johns NL
Leaky injector question
Hi,
What is the procedure to determine which (if any) of the injectors is leaking. Second, is there a way to repair a leaky injector or do you have to go out and buy a new one? Any help on this would be greatly appreciated.
Thanks
Mark
What is the procedure to determine which (if any) of the injectors is leaking. Second, is there a way to repair a leaky injector or do you have to go out and buy a new one? Any help on this would be greatly appreciated.
Thanks
Mark
Team Owner
Joined: Sep 2001
Posts: 62,145
Likes: 1,730
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Re: Leaky injector question (MarkHalliday)
Usually the easiest way to tell is by hooking up a pressure gauge at the rail, turning the car off, and seeing if pressure holds steady.
You can have the faulty one sent to Rich at CruizinPerformance, but you might as well send all 8. If one is leaking, another is sure to follow.
Or you can buy the Ford #24 SVO injectors.
You can have the faulty one sent to Rich at CruizinPerformance, but you might as well send all 8. If one is leaking, another is sure to follow.
Or you can buy the Ford #24 SVO injectors.
Le Mans Master
Joined: Apr 2000
Posts: 6,341
Likes: 1
From: Shelton CT
Re: Leaky injector question (vader86)
Usually the easiest way to tell is by hooking up a pressure gauge at the rail, turning the car off, and seeing if pressure holds steady.
When I had leaky injectors, durign a cold start the car started up right away,
but when it was warm it took a few cranks to start.. Replaced the injectors, everythign is fine since..
Team Owner
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
Re: Leaky injector question (MrNuke)
If I remember right....
With the fuel pump running pinch off the return fuel line and feed fuel line. Turn off the pump and monitor pressure. If it drops to 0 relatively quickly or immediatly you have an injector(s) leaky/stuck open. Pinching off both lines gives the fuel nowhere to go besides the cylinders.
With the fuel pump running pinch off the return fuel line and feed fuel line. Turn off the pump and monitor pressure. If it drops to 0 relatively quickly or immediatly you have an injector(s) leaky/stuck open. Pinching off both lines gives the fuel nowhere to go besides the cylinders.
Burning Brakes
Joined: Oct 2002
Posts: 983
Likes: 1
From: Bergen County NJ
Re: Leaky injector question (scorp508)
While you can determine if there is a leak, it'll be darn impossible to narrow it down to a specific injector. Send all of them to Cruzin Performance - Rich will get them working as good as new for ~$100 (includes shipping).
[Modified by sraft, 1:54 PM 6/5/2003]
[Modified by sraft, 1:54 PM 6/5/2003]
Team Owner
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
Re: Leaky injector question (sraft)
While you can determine if there is a leak, it'll be darn impossible to narrow it down to a specific injector.
p.s.
I would STILL get them all cleaned and/or replaced either way. At least you'll know which was the problem child.
[Modified by scorp508, 2:05 PM 6/5/2003]
Team Owner
Joined: Sep 2001
Posts: 62,145
Likes: 1,730
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Re: Leaky injector question (scorp508)
Also, if he's having serious startup issues, he could pull the plugs and one should look very different, probably black as coal.
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Burning Brakes
Joined: Oct 2002
Posts: 983
Likes: 1
From: Bergen County NJ
Re: Leaky injector question (scorp508)
No way its easy. Do what I did. Yank the plenum and unbolt the fuel rails from the intake manifold. Pop the injectors out of the manifold while still in the fuel rails. Place a small piece of dark colored paper under each fuel injector (hit the tips with compressed air first) and prime the fuel rails with a turn of the key. If one is leaky or stuck open you'll see it immediately.
[Modified by scorp508, 2:05 PM 6/5/2003]
scorp,
You're so right - it's so obvious (now that you mention it), why didn't I think of that?
Cheers
