LS3 Injector replacment directions?
Race Director
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
Make sure the O rings are not damaged when you install them.
This will tell you more than you want to know, but just skip to the injector install.
http://paceperformance.com/attachment/35460-.pdf
This will tell you more than you want to know, but just skip to the injector install.
http://paceperformance.com/attachment/35460-.pdf
Last edited by timd38; Feb 14, 2017 at 10:08 AM.
Race Director
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
Yeah it's literally just unhook all the electrical connectors (squeeze connector and pull), then 4 10mm bolts that hold the rail to the intake. Remove those and it's just a matter of pulling the rail off. I would go around and twist each injector and rock them back and forth some to try to loosen them up so they come out easier. Injectors will come off with the rail
Then remove the clip on each injector and pull the injectors off the rail. The clips slide out..
Obviously you want to release fuel pressure first.. couple of ways to do it but I just pull the fuel pump fuse and start the car, run till it cuts off. Hit valve on schrader valve while holding a rag over it to make sure no pressure is left and you should be good to go
Then remove the clip on each injector and pull the injectors off the rail. The clips slide out..
Obviously you want to release fuel pressure first.. couple of ways to do it but I just pull the fuel pump fuse and start the car, run till it cuts off. Hit valve on schrader valve while holding a rag over it to make sure no pressure is left and you should be good to go
Last edited by schpenxel; Feb 14, 2017 at 04:14 PM.
