Thread: Interested in buying an '04+ Grand Prix

There is a common problems thread floating around here somewhere.

They have their basic flaws for sure, wheel bearings or wiring issues are the biggest reason for ABS lights. The transmission is "Strong" but has it's weak points and for most isn't a issue they see when they own the car. But you could buy one and have the problem, it's hard to say ya know.

04-05 still have the plastic intake gaskets, I bet most of them on the road have been replaced but there still can be many that haven't yet.

Fuel mileage is all about where you drive and how you drive. Figure 15-18 city and 27-30 on the freeway. If you only do freeway, you'll get mid to upper 20's for sure with a good running car but if you are more heavy in the city, you will stay in the 19-23 mpg range.

If it was me I'd find a nicer low mileage car from 06-08 for just a daily.

He's right. 06-08 base would be your best bet as far as the intake gaskets and everything go, but if you want a GT2 you'll have to go 04-05 and possibly deal with intake gasket issues.

I've driven/ridden in 6th and 7th gen GPs and 8th gen Impalas and N/A to N/A I'd say there wasn't any noticeable difference. Never driven an L67 Impala though, would be weird if there was a difference, unless of course you're comparing a 7th gen GP S/C to an 8th gen Impala S/C, then given then 20hp difference there might be some power difference. I'd take an 8th gen Impala over a 6th gen GP any day though because the Impala has a lot more "quality" interior, IMO.

lol, interior quality of the Regals and 8th gen Impalas in comparison to 6th gen GPs is just...., yeah. I'd never buy another 6th gen GP to DD.

As a proud owner of the 08, I had no issues, nor any problems ever, so, my feedback here is, well... GO FOR IT... Though, I feel it to be eating a bit too much gas these days even for the 6 CYL model I have, due to the high gas price. Though it went down a bit... But I still love the car, and it still runs beautifully as my first purchase when it was new....

Both of those car's in general are decent but each motor has known issues's.

The 3.9's suffer from a rough idle problem at times and burn oil and leak oil. The northstar is a strong motor but just never overheat one because of head gasket problems and burning a little oil is known to happen. Tight engine bay kinda sucks aswell but the northstars get a really strong transmission.