2004-2008 Grand Prix

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Thread: 2004-2008 Grand Prix

  1. #1
    2.5L Iron Duke
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    2004-2008 Grand Prix

    looking at some Grand Prix's from 2004-2008 models.
    What year did they switch from the plastic intakes to metal ones?

    Any years better than another?? Cars I have been looking at have 50xxx to 90xxx miles on them.
    Thanks

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    6.2 Liter LS9 Supercharged V8 MrCritical's Avatar
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    Re: 2004-2008 Grand Prix

    Switched in the '04 model year. I would say the '05 and up were better.

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    Re: 2004-2008 Grand Prix

    Thanks , thats what I was looking for

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    6.2 Liter LS9 Supercharged V8
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    Re: 2004-2008 Grand Prix

    Yup the 3800 became Series III in 2004 for the GP and 2005 for the LaCrosse and has so far proven to be pretty bulletproof with the new composite steel intake manifold. It also sports slightly larger intake valves and a more rigid stout bottom end for reduced noise and greater longetivity. I have seen some 04 and 05 models with the usual GM intermediate steering shaft issues so expect that as a possible issue on any year GP and also be aware that the 4T65 tranny can be a POS especially with hard use from the previous owner so make sure it shifts good and stores no codes. From what I have heard the 06-08 models are pretty reliable overall and are your best bet.

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    4.6 Liter Northstar V8 01sunfire01's Avatar
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    Re: 2004-2008 Grand Prix

    my dad had a 2004 grand prix gt he said its one of the best cars he ever owned. never was in the dealer for anything. only reason they sold it was because my mom couldint drive it.

    my friend has a 98 grand prix GT and he has a coolant problem with it and a little oil leak but he had that fixed and its been fine hes had the car for 5 years now.

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    2.5L Iron Duke
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    Re: 2004-2008 Grand Prix

    I bought an 2008 fresh off of a local rental company w/ 35xxx miles.Factory bumper to bumper & whats left of the 5yr 100,000 power train warranty

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    6.0 Liter L76 V8 CadiEldo67's Avatar
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    Re: 2004-2008 Grand Prix

    I believe that pictures are in order.

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    Re: 2004-2008 Grand Prix

    I bought a O5 Grand Prix with 41K miles. Ive already had to replace the I shaft and the second gear clutch failed. What other additional problems can I look forward to? 1st time at the forum. Thanks GP owners/mechanics

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    Re: 2004-2008 Grand Prix

    Sunroof on the vehicle? I will be replacing my weatherstripping once it warms up since mine leaks sometimes but I also had to raise my sunroof a little bit.

    Did you get a Base, GT, GTP, or CompG?
    1995 Chevrolet Camaro Z28
    210,725 km
    130,938 miles

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    Re: 2004-2008 Grand Prix

    My car does have a sunroof. Is there anything I can put on the weatherstripping to preserve it?
    I have a Pontiac Grand Prix GT
    Any other costly issues with this car?

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    Re: 2004-2008 Grand Prix

    Just make sure you use some sort of silicone protectant on the weatherstripping to make sure it is always in top notch.
    1995 Chevrolet Camaro Z28
    210,725 km
    130,938 miles

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    1.4 Liter Turbocharged ECOTEC
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    Re: 2004-2008 Grand Prix

    Quote Originally Posted by domvinny View Post
    My car does have a sunroof. Is there anything I can put on the weatherstripping to preserve it?
    I have a Pontiac Grand Prix GT
    Any other costly issues with this car?
    Use Dielctric Silicone (available at GM dealers) for all weatherstrips.
    comes in a tube.
    2005 Pontiac Grand Prix GXP

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    2.4 Liter SIDI ECOTEC ljtyphoon's Avatar
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    Re: 2004-2008 Grand Prix

    My 06 has been almost trouble free. Water pump started leaking about 2 months ago at about 20,000 miles(under warranty). They also did power steering cooler and lines last month on recall. Put Conti. Extremecontact DWS tires on and they are as good as Tire Rack says they are! The LS4 T/steers a lot less with the Conti's then with the OEM Bridgestones. They make the bigger front (255's) tire size but not the smaller rears so I opted one size bigger (235's) for the back. Forgot to mention they had/have free TomTom promotion that Nav'ed the Aztec for the wife.
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    Last edited by ljtyphoon; 05-25-2010 at 06:16 PM.
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    2.4 Liter SIDI ECOTEC Jamo's Avatar
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    Re: 2004-2008 Grand Prix

    I'd like to see photos. I can't picture the difference between the '97-'02 generation and the newer one. THey probably skipped '03.

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    2.4 Liter SIDI ECOTEC Jamo's Avatar
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    Re: 2004-2008 Grand Prix

    Here's a photo. Apparently, the coupe was discontinued after 2002. Only sedans are out there:



    http://http://images.autotrader.com/....279771246.IM1

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