2007 Pontiac Grand Prix GXP. I wish to learn about the car and understand its strong and weak points . It'* had the transmission rebuilt at 74,000 and my first thoughts are what made it fail.. I will need to understand the common issues this car may have....and avoid them. Is there a listing of troubles and stickys with info about certain topics ? Thanks

It has the Northstar right?

It is not a North Star... I can't seem to find what engine it is beside a 5.3 v8 with active fuel management

303 HP

The front tires are an inch wider than the rear ones though...

Same 303 HP 5.3 v8 engine as the 07 Chevy Impala SS has.. active fuel management ..

5.3 L LS4 V8 - 303 in this 07 I am asking about

You have already run in to the one problem that I am aware of with that car. The 300+ HP v8 running power through a 4t65. They are notorious for short transmission life spans from what I understand, and also with it comes other inhearant behaviors with a torquey v8 firing power at the front wheels.

I think it is a 4t65-E or who knows what the model tranny it does have ?

Yes, it'* an 'E' which denotes electronically controlled.

Got lazy, sorry