Impala SS/GXP reliability
Well, I've been looking at the Impala SS and GXP and they are starting to work their way up my list of possible choices. Good LS4 power, FWD will be good in the snow, 4 door should be a little better on insurance than a F body, plus the prices seem fair on them. I can get an 06 SS for around 14-15k with fairly low mileage in my area. Plus they are pretty easy to find and not too rare.
My questions are these. I only have a few:
1. Torque steer, how bad is it?
2. Is the car decent in snow? Figured it would be since its FWD with a big V8 on the front wheels.
3. Fuel economy. What are you guys getting with your GXP/SS? City and highway please.
4. Any huge differences between the SS and GXP that should influence my decision?
And my most important question:
5. Reliability. I have read that the transmission on these cars break easily. Any truth to this? Would it be worth it for me to pay a little extra and get an extended warranty from the used car dealer?
Thanks a lot guys I appreciate the help.
As far as fuel economy I get typically 12-14 city and mid to upper 20's highway. And my car does alright in the snow on the stock RSA's. I don't have a long commute though.
It is decent in the snow, it got me through a nebraska winter.
City gas mileage sucks! I got better mileage with my stalled and cammed Camaro. True! Highway is alittle better, but meh!
If I had to do it again I would NOT buy this car. It has ZERO fun. A real bore to drive!! It is just a plain jane family sedan that has a V8. And your buddies will call you an old man for owning it! LOL!
But if you must buy one, make sure it comes with a warranty or buy some kind of extended warranty.
Mine is for sale! I think I owe 19.5K. Its an 2006 Imp ss. Its pretty bad when you pray that your car either gets wrecked or stolen just so its gone!
Oh one more thing. They hold there value about as good as used tissues! lol!
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SS/GXP: I like my HUD and the tire stagger. I personally liked the GP interior to the Chevy interior, but to each their own.
Transmission went at 31k. Replaced under warranty. I'm up to 41k now and the trannie seems to be doing well. W-Bodys also like to eat brakes, I'm on my third set. My driving habits may be contributing to this problem.
Fuel Econ: 12 city, it varies highway. If I'm good, put on the cruise and let DoD/AFM come on I can push low 30 mpg. If I'm rolling down the left lane with the throttle down I'm looking at mid to low 20s.
The Best V8 Stories One Small Block at Time
2. Uneventful, almost boring.
3. 50/50 mix 18 mpg after tune.
4. Ergonomics, and the GXP is defiantly better looking.
5. 40,000 miles with a couple of bolt-ons and driving it pretty hard from time to time, no problems. But it is an automatic tranny and they do puke, you will here more people complain about them than you will here praise them.
2. Depends on tires. Stock ones aren't very good in it, but it shouldn't be a problem if you drive on plowed roads only.
3. 10-15/25-30 if you're lucky.
4. GXP has the HUD and tapshift transmission options and is generally more sporty appearing.
5. Get the extended warranty if you don't plan on modifying it.

The occasional rip down a straight or a burnout or two when I need to let some anger out. I'm not one to destroy expensive tires.
Since I would be financing a chunk of the cost, I really wouldn't have any cash to modify it anyway, so I would probably purchase an extended warranty from the used car dealer.
Just curious, You guys who have had the transmission failures, how hard do you beat on it? On average, how many times a week to do really get on it hard?
This is a good example of what my budget will get me in my area:
http://www.autotrader.com/fyc/vdp.js...standard=false
Thanks guys, I appreciate the help!
I couldn't tell you about the snow (I'm in Houston.)
As for the rest, I think it's a fun car, but I'm used to rwd cars that make a bit more power. For practicality though my GXP is a decent fit (four door and I have two kids.)
As far as reliability, I haven't had the best luck. My car is an '05, though, which was the first year for this combo. ANY first year run typically has more problems than subsequent model years.
My car gets great mileage for what it is. I average 22 mpg untuned, an the vast majority of that is sitting still in Houston traffic. I think my DIC says may average speed is 33 or so and I drive about 500 miles per week (outside sales.
I have to say that i wouldn't rate this as the most reliable car. I hate to go back to that, because I truly like the car. However, my friends urged me to go with the GTO and I wish, at this point, that I had. I don't know how hard the previous owner beat on the car (I bought it at 60k), but according to the carfax it had gone through a steering pump, all of the front suspension, a battery and rotors by 30k. It also had to be towed several times under warranty. Since I've had it, I have a persistent heater core issue (I've changed hoses and backflushed it and it still sounds like I'm driving an aquarium.) I've replaced the tranny (definitely made a huge difference--I have a performance rebuild with higher stall converter and it makes it kinda' mean.) I've also replaced a radiator hose, both front hubs, another battery, the water pump, a couple of suspension bolts, and I need to replace a rear 6x9 speaker (been blown since I bought the car.) Oh, and I need to replace the steering rack now. I've had a box of performance goodies (downpipe, rockers, etc) that have been waiting to be installed but for the damn repairs I've had to do.
That being said, for the money, it's hard to find a 4 door v8 car that has the potential, fuel economy and utility that these cars have for the price. You can literally steal these cars right now. Granted, you may be just as happy with one of the supercharged 3800 cars that you can get for less money and that have a huge aftermarket.
I just want to give you my honest opinion.
Thanks and good luck. As long as your decision is based on as much information as you can find, you should be in good shape. Have you looked at the G8 GT?
Thanks,
BJ
Its a pretty sweet car for what it is (four door mid size family sedan with a V8 punch). Just keep that in mind and you'll be happy with it lol.
1. It was bad in the beginning.. I remember going for a test drive and i though it was gonna lose it.. Now after a year i dont even feel anything prob b/c im use to it.
2. In my opnion, the stock tires after a year start to suck in the snow.. They were great with all the tread but after that, they are only good on a plowed road.. Not worth the 230 bucks a tire to me..
3. Fuel economy depends on how you drive it.. If you live in a flat area with very small hills or none, you get probably close to 30mpg on the highway.. On a flat surface at a steady 75mph, i get 25mpg.. I average 21MPG and i drive between the speeds of 65 - 80mph on the highways here in Pennsylvania.
4. The powerplant is the same for both. The looks depends on your taste.. Thet GXP is a good liking sporty car, but i think the same for the impala. The things that drove me away from the GXP is the little extra feature it has that cost about 3-5 grand more than the Impy ( i was new car shopping). Not sure what the blue book value difference is. I can live without the cross drilled rotors and HUD and whatever else it had.. If money not an issue, go with the GXP. Watch what GXP you get b/c i believe some have the two different size tires wrapped with bridgestone and u cant rotate them..
And my most important question:
5. I have 27000 miles on mine and i have no problems with the tranny and i have driven is hard a few times.. My stepdad has an 05 GXP and at 44000 miles his tranny went. He babys the car and no mods.. the 05-06 GXP and 06 impy trannys seem to go bad quicker than the 07+ years from what i read and heard from the dealer.. I know some ppl who have well over 70000 miles with tunes and mods and still run off the same tranny with no problems. I think there is a few on here.. Overall like all W-Body cars GM has produced, the tranny has sucked..
If ppl say your driving an old mans car, just ignore them. I get lots of compliments from my friends and strangers too.. Yes they are family sedans but that still got some kick *** power.. Funny thing is i race so many of my friends with civics and scions and i just say didnt that old man car just kick your ricer ***? lol
Last edited by steveman0018; Apr 12, 2009 at 06:23 PM.
http://www.autotrader.com/fyc/vdp.js...standard=false
Im 19 too, Bought it off my mom with 34k on it about a Month ago.
It had some tranny issues when she first had it, other than that its g2g.
The city mileage isnt that great, highway it kicks *** though. Im in the militay and semi regularly drive from MD to MA ( 492 miles ) And each way it takes only a little over of a tank of gas, ( If you dont unload it on i95 lol ).
Solid car, pretty classy IMO. Has alot of room in it and although its not fun its still pretty quick.

