Leaking Fuel need Help

[Sly8795]

I have a 90 XJ 4.0 Liter with fuel injection. yesterday i put in some fuel injector cleaner and some premium fuel to help clean out the system cause its not idleing good. I parked it and left it running this morning for 5-10minues and came out to a huge puddle of fuel under the motor on the ground. I cant tell if its from an injector placement or from a hose leading to an injector. If its a hose to the injector is this something where the whole system needs to be replaced....I'm not that familiar with fuel injection...any advice would be great

 

[Bounty__Hunter]

Had the same thing on my MJ with that same engine, bad injector o-rings. Easy to replace, you'll need 14 o-rings. 2 for each injector, and 2 for the fuel pressure regulator.

Have somebody crank while you watch the fuel rail, you should be able to pinpoint it.

 

[Sly8795]

Thats what i was hopeing it would be. Would the injector cleaner have correded it more or do was it just coincidence? Also this is probably obvious but should i just go ahead and replace all of them at once or just find the one thats leaking?

 

[Laph]

going to take the time to replace one, might as well finish up with the others, the fuel injector cleaner prob just cleaned up some carbon that was sitting around it keeping it from leaking, will not eat the o-ring.

 

[Sly8795]

Turns out it wasnt the injectors. The fuel pressure regulator was spraying gas everywhere. Has anyone run into this. I ordered a new one I assume that should fix it?