Brian Taylor Posted December 9, 2016 Report Share Posted December 9, 2016 I've got a dead injector in cyl 6. I'm still on the fence between DIY'ing this and paying a mechanic. In any event, I have a couple questions: It looks like I have to pull the entire rail (all six injectors), which means pulling the intake manifold. If I do this, do I have to replace the intake manifold gasket and all six o-rings on the injectors? Several of the posts mentioned oiling the o-rings. I used to just use a light dab of motor oil, is that still acceptable? Anyone know the torque specs for the upper intake manifold bolts? Quote Link to comment Share on other sites More sharing options...
WWWPerfA_ZN0W Posted December 9, 2016 Report Share Posted December 9, 2016 Bigger job than it sounds. If you do this, you are basically doing what it takes to do a spark plug/PCV valve change (highly recommended) + fuel system depressurization + pulling off fuel rail/injectors. I would replace all 6, because if 1 is gone, and that too on the cooler bank, the rest will follow in short order. But the work to get to them is not that bad, so you can defer if you really want to. NOTE: 2007 Edge PCV valves are electrically heated, so if you are wondering why the intake manifold isn't coming off easily, there is an electrical plug attached to the underside of the intake (next to the PCV valve) that you can only get to by first disconnecting everything topside from the intake and then lifting it up/tilting it. O Rings come with the new injectors, so no worries there. A dab of the same engine oil you put in the crankcase is fine for the O Rings. You can reuse the O Rings on the old injectors that you are not replacing, just clean them up first before oiling. Very mild torque on the intake manifold bolts. About 5 lb ft / 62 lb in. Def don't want to crack that plastic! 1 Quote Link to comment Share on other sites More sharing options...
IWRBB Posted December 13, 2016 Report Share Posted December 13, 2016 Schrader valve will depressurize the system, not much fuel will come out, just a quick spurt. The injectors will pop right out once the rail is off. The may pull out with the rail. I use Sil Glyde to lube the new orings, you can get it at any parts store. I'd at least replace all the o-rings even if you only replace one injector. 1 Quote Link to comment Share on other sites More sharing options...
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