- Buick Ownership
Have a 2012 Lacrosse eassist (2.4 ecotec). I've been having acceleration issues and overall sluggishness. This all started after my battery and O2 sensor were replaced during the holidays (maybe not related and just a coincidence). Poking around the engine compartment, I found a 1/2 inch tube (red arrow) that seems to be either cut, or disconnected (one end not attached to anything). Seems to be located on the passenger side of the engine. Maybe it's just a breather hose of some kind. If someone with a similar car can take a look and see if their's is the same, I would greatly appreciate it.