I obtained an engine harness from an 2003 trailblazer v8. And i rewired a plug that is piggybacked into the 4.2 trailblazers 3rd pcm plug. I unhooked all plugs from 4.2 harness and hooked my harness and ecm (from 05 cadillac escalade). It did the security learn and would click the starter relay. And all communications with bcm and modules were good. So hopefully once it swapped in it will be plug and play.
Lol, about a month. And i just found my lower mounts after the millionth junkyard. Took about a week of comparing wiring diagrams to figure it all out. And arguing with junkyards about the gas pedals for v8s being different.
4.2 is still in Bravada. I'm building a high hp 4l60. Done a ton a research and bought about 1200 in parts for trans. I'm prepping all components for install. Ls9 head gaskets studs new set of lifters and baskets. I plan on getting it running without turbo hooked to intake. Tune it with efilive. Trans has been a learning experience. Also had a stock input drum modified (buddy owns machine shop)
np149 that was free because it was "junk" (oil pump filter was plugged with silicone) And a saab 8.6 g86 to replace 8 inch. Still have to do oil pickup mod, moving it backward so it doesn't oil starve. I will post progress as it happens.
I have 7 alto reds in here with .106 full thickness steels pondering modifying end plate to fit 8th friction. Any suggestions? I've read you go to thin on steels it warps them. Also the problem with flex which i dont think I'll have even if i make it fit another friction.
Ok finally got this. 500 bucks for a 140000 mile 6.0 (just broke in lol). Don't need harness so that will go to the 87 iroc 6.0 swap. Nasty looking thing out of a plow truck. Time to strip it down and clean her up. ls9 gaskets arp head studs, new oil pump, chain and 6.2 tensioner mod. Oh and a new set of gm lifters and baskets. Grind the valves and new stem seals.
So i knew this was junk, so i decided to take it out to look at connector shaft to see if it was bad. (Of course it is). But if you want a surefire way to get one out without breaking it, this is how you do it. I've always got them out in 1 piece. Take a pry bar and lightly put pressure between pan and actuator or coupler. Then take an air hammer. and go back and forth (stay away from the mounting bolt holes, Otherwise you'll have to ream them out where its dented)SEE MIDDLE PIC. Just keep light pressure with pry bar pushing it out. And work it back and forth with air hammer like a half inch of rotation. Comes out in like 2 minutes (Not Broken, Well it may be junk in the first place like mine but at least the housing isn't broken off) Clean it and anti-sieze(silver not gold)the part going back in pan.
Got the first wave of stripping and descaling done. What a mess. You guys are lucky down south without Minnesota salt trying to eat things away. Maybe tomorrow I'll do the heads If i'm not too busy. Also need to fab the oil pump pickup to the back of the 5.3 pan.
Was just wondering how many people are interested in this build? I appreciate any comments good or bad. Hopefully I can inspire someone to not be afraid of taking on any task. Those front end actuators are actually really easy to rebuild and have kits on ebay of the internals for fairly cheap. I think it was $190 for one you assemble. If it's as bad as mine it's not fixable .
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