4.8 to 5.3
Apr 9, 2013 | 07:05 AM
#21
Yeah, I talked to Charlie and he said to go over those spark plug wires, also going to check to make sure I didn't unplug something while installing other things. I suspect the plug wires though because like I said, I had to pull on them pretty good to get them off. Might have damaged one.
Apr 9, 2013 | 02:18 PM
#22
Swapped the plug, the wire, the coil pack and still nada. Turned out to be a clogged fuel injector. Put one in from my 4.8L fuel rail and seems to be running pretty smooth even on the 4.8 tune.
May 8, 2013 | 07:22 AM
#23
Registered User
Joined: Apr 2013
Posts: 7
Likes: 0
I am almost completely done now, waiting on PCM that should be here tomorrow or Weds. I have to put in driveshaft, y pipe, battery. The worse part was all the wires. I labeled everything but there are a ton of grounds, and GM used every kind of clip so it takes a little looking to see how to open them. The grille and core support took longer than the engine, I forgot how alot of it went LOL. I wasn't working full days on it and taking my time, so if you bust your butt you could get it done fairly quick.
May 10, 2013 | 12:01 PM
#25
Launching!
Joined: Aug 2012
Posts: 236
Likes: 2
I'm guessing the injectors were the same between the 4.8 and 5.3? I haven't looked at my 4.8injectors, or researched it.
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