2009+ Aveo's (Sonic, Cruze, Astra, Swift ) have the LVX/LUW engine
Gates TCKWP338 Timing Belt Component Kit with Water Pump
Does not include new bolts for the idler or tensioner.
Replaced my water pump, next was to be the timing belt.
The Aveo has been taken apart for days trying to figure out how to remove the timing belt.
Text based instructions are one thing, a video is another thing.
When I was at the point of giving up, I found these videos based on looking at the camshafts.
Found two (non-English) videos for a cruze but that does not matter, the engine is the same.
https://www.youtube.com/watch?v=vG55Rsv1bqM
https://www.youtube.com/watch?v=gf4SXHtrCjo
Did not mess with my transmission like they do in the first video.
Had to design/make a tool to hold the camshafts.
Marked my old T-Belt just like the instructions for the older model engine.
Never found out what the tensioner pulley pin was for or how it worked.
Engine
timing belt idler tighten the NEW bolt to 25 Nm (18 lb ft).
timing belt tensioner tighten the NEW bolt to 20 Nm (15 lb ft).
timing belt lower cover tighten the bolts to 6 Nm (53.1 lb in)
engine mount bracket (Front of engine) tighten the bolt to 65 Nm (47.9 lb ft)
timing belt upper cover tighten the bolts to 4 Nm (35.4 lb ft).
crankshaft pulley aligning crankshaft pulley with notches and tighten to 95 Nm plus 45 degrees plus 15 degrees (70 lb ft plus 45 degrees plus 15 degrees).
Engine mount to unibody
engine mount retaining nuts to 40 Nm (30 lb ft).
engine mount bracket retaining bolts to 55 Nm (41 lb ft).
Purchase new bolts for the idler and tensioner ONE time USE.
Most Timing belt kits do not come with them, dealer charged 5.31 each.
GM# 55570291 AC# 55570291 GR 0724
My pictures will follow when I am done
George