Join Date: Aug 2012
Location: Plano, Texas
Oil pan gasket replacement, 2007 G6 LZ4
My G6 is a 2007 model with the 3.5 liter V6 (LZ4). I am in the process of putting a new oil pan gasket on it, and have some questions about the procedures. The shop manual calls for three steps I'm wondering about:
1. Raising the motor
2. Separating the transmission from the block a little bit
3. Removing both catalytic converters
Raising the motor is not a big thing, but it almost looks like there is enough clearance to get the pan out without needing to do that. Is raising it really necessary?
I've seen on other models where separating the transmission was called for, but folks were able to avoid doing that. Again, is this step really necessary on the G6?
Lastly, removing both catalytic converters is definitely not necessary – the rear one is clearly not in the way, but the front one may be. Here again, it almost looks like the pan can be removed without removing the front cat. Is it mandatory to do that?
Thanks for your inputs on this.