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looking to buy a Grand Prix Gxp

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Old 05-13-2014, 07:30 AM
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Default looking to buy a Grand Prix Gxp

Im wanting to buy a gxp for my wife. what are some things to look for when buying one. What is a good price for a 06 with 60000 miles in almost perfect condition. Anything else I should know about these fwd ls4 cars?
Old 05-13-2014, 10:21 AM
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Hi, I just got my 06 gxp a couple months ago. It had 142,000 miles on it and is in very good condition. We picked it up for a little over $6,000. KBB for my car was around $8,000. So im guessing one with only 60,000 should be worth 10-12k in good condition. The first thing to check on these cars is the transmission. They were absolute junk. Most of them seemed to go out prior to 100,000 miles. A lot have gone out prior to 80,000 miles. Other than that I cant think of any major problems that come up with this car. The motor is very strong and reliable. One thing to think about if you go with the gxp and not the ss cars is that the gxp has different size tires in front than in back so you cant rotate them.
Old 05-13-2014, 11:24 AM
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Originally Posted by CrimsonGXP
Hi, I just got my 06 gxp a couple months ago. It had 142,000 miles on it and is in very good condition. We picked it up for a little over $6,000. KBB for my car was around $8,000. So im guessing one with only 60,000 should be worth 10-12k in good condition. The first thing to check on these cars is the transmission. They were absolute junk. Most of them seemed to go out prior to 100,000 miles. A lot have gone out prior to 80,000 miles. Other than that I cant think of any major problems that come up with this car. The motor is very strong and reliable. One thing to think about if you go with the gxp and not the ss cars is that the gxp has different size tires in front than in back so you cant rotate them.
is there any way to prevent the transmission problems? And I offered 10k on the car I'm currently looking at
Old 05-13-2014, 06:45 PM
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Default Trans

Do a bigger Trans cooler to lower Trans temps and a shift kit first that will help
Old 05-13-2014, 07:43 PM
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x2!!!
Old 05-13-2014, 08:57 PM
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x3 and add an external filter.
Old 05-13-2014, 09:28 PM
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X4 Put a tune on it
Old 05-13-2014, 10:37 PM
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x5 and buy a different car
Old 05-13-2014, 11:27 PM
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Originally Posted by Model16
x5 and buy a different car
X6 HATERS!!!!:dark :
Old 05-15-2014, 11:00 AM
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Get a warranty for sure, sometimes they burn oil because of dod and the pistons and rings get completely carbon'd up.. disable dod through a tune like diablew...
Old 05-15-2014, 08:16 PM
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Originally Posted by severancej
Get a warranty for sure, sometimes they burn oil because of dod and the pistons and rings get completely carbon'd up.. disable dod through a tune like diablew...
Mine does seem to burn some oil. And its running pig rich. My chrome exhaust is blacker than Mr. T.
Old 05-15-2014, 08:25 PM
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Originally Posted by 08 pimpala ss
X6 HATERS!!!!:dark :

Last edited by CrimsonGXP; 05-15-2014 at 08:30 PM.
Old 05-16-2014, 06:49 AM
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Hell, Ill sell you mine for a lot less than 10k
Old 05-16-2014, 06:23 PM
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Originally Posted by Model16
x5 and buy a different car
Originally Posted by 08 pimpala ss
X6 HATERS!!!!:dark :
I don't think he's hating on these cars, and I get fed-up when people call it hate when those of us own LS4's don't recommend them because of the transmission problems. "Hate" is when some of the F-body trolls show up and talk **** about our cars just because they're FWD.

Personally, I wouldn't buy an LS4 car again unless it already had a TEP trans installed. Furthermore, I wouldn't recommend that anybody buy one of these cars without a TEP trans installed.

Lastly, I warn people who are interested in LS4 cars to put aside $3000 to get an upgraded transmission once the inevitable failure occurs.

This isn't hate. It's reality and good sense. Not everyone is a hardcore enthusiast like some of us are and don't want to deal with repeated problems. Don't assume everyone is like you.
Old 05-16-2014, 10:52 PM
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Originally Posted by LS1 Racing
I don't think he's hating on these cars, and I get fed-up when people call it hate when those of us own LS4's don't recommend them because of the transmission problems. "Hate" is when some of the F-body trolls show up and talk **** about our cars just because they're FWD.

Personally, I wouldn't buy an LS4 car again unless it already had a TEP trans installed. Furthermore, I wouldn't recommend that anybody buy one of these cars without a TEP trans installed.

Lastly, I warn people who are interested in LS4 cars to put aside $3000 to get an upgraded transmission once the inevitable failure occurs.

This isn't hate. It's reality and good sense. Not everyone is a hardcore enthusiast like some of us are and don't want to deal with repeated problems. Don't assume everyone is like you.
Well first off i was not to be meant as "Hate" i would hope that everyone is not like me and for all u and i know he is a fbody guy.. I just dont agree when someone is asking questions about a subject and is expecting input on this car before he buys people say that the trans sucks trust me i know i broke mine but for someone to just say buy a different car is just plain ignorant
Old 05-22-2014, 06:55 AM
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I think yall talked me out of it......?
Old 05-22-2014, 08:38 AM
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Originally Posted by josephholtinsurance
I think yall talked me out of it......?
I haven't had any problems with my gxp. It has 144,000 miles on it. I am very pleased with it as it is my first car.
Old 05-22-2014, 09:00 AM
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I bought mine 3 months ago and I absolutely love it! It's a great combination of speed, luxury and stealth. Just keep an eye on the transmission temp. I'm going to install a trans cooler on mine this summer.
Old 05-22-2014, 09:50 AM
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My only problem is I never like the 2004+ looks If I had a choice between a 97-03 and a 04+ grand prix I would always opt for the earlier model. Though I have driven in a GXP and I still love them.

Fear the glass transmission
Old 05-22-2014, 10:06 AM
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Originally Posted by CrimsonGXP
I haven't had any problems with my gxp. It has 144,000 miles on it. I am very pleased with it as it is my first car.
You are in the minority, and you should go play the lottery, as you've truly beaten the odds.

Originally Posted by Grand Prix GXP
I bought mine 3 months ago and I absolutely love it! It's a great combination of speed, luxury and stealth. Just keep an eye on the transmission temp. I'm going to install a trans cooler on mine this summer.
While I agree on the notion that keeping trans temps down is always a good thing, that's not what kills the transmission in these cars. I won't go into it again, but there are plenty of threads here and on GMLS4.com that explain the root causes of our transmission problems.


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