OK i know! i know! it's been posted too many times on here. But just give me the simple breakdown of what i need to do an ecotec swap. I have an 02 auto sunfire without the ecotec engine. But here's what happened, I was trying to start my car in the morning and well it wouldn't start and i kinda popped something when i was giving it gas trying to start it. By pop i meant there was like a tiny explosion inside(bang!) the engine bay and i have no idea what it was. It smelled like gasoline and then the smoke cleared. I hope it's nothing serious! But now it's making a weird noises when i finally got it started later at night. so in case i have to spend a lot of money fixing it i thought i might as well get a better engine. so i'm thinking of doing an eco swap. i was wondering what i need. So don't hate me! lol

search.....


This has..as you have said many many times been asked and there is a how to even...just search èco swap``



imple run down though you need the tranny,motor and engine bay harness and ecu

Hmmm... Have you checked you timing chain? Mine just slipped after the tensioner failed due to the fact that the guys whom rebuilt my well-worn engine used substandard parts instead of GM pieces (Damn cheapo rebuilders). It did the same thing to me as yours did, only I had a little warning from the ticking sound of the chain slapping against the tensioner while the engine was cold. The factory piece is supposed to set tension permanently the moment hot oil contacts it, but sub-par aftermarket tensioners (like ones made in China) tend to relax and retension as engine oil heats and cools. Plus, the factory "Quiet"-chain tends to need replacement after about 80,000-100,000 miles, and mine was by a hack wrench before I got hold of the truck it's in (Yes, my truck has the same engine!). The idiot failed to remove the broken pieces from the oil pan and the oiling system fed them to the engine. And since oiling priority on the LN2 is lifters & cam-bearings, followed by mains & rods the crank and oil pump & pick-up tube ended up needing replacement (Which I did. Very well, thank you) only to learn that the lifters & cam-bearings had been contaminated by metal frags, and I had no way to replace them (hence the rebuild, eventually. After the lifters collapsed). So if I were you, and looking to save downtime, money & just get it running again, I'd check the chain first.

Go beyond the "bolt-on".