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2004 Pontiac Grand Prix GTP

turbo96

turbo96

New member
I'm in the process of buying a 2004 Pontiac Grand Prix GTP. Tomorrow may be the day!:D. There is a part I noticed missing under the key on the center console, where can I order one of those and how much $?
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turbo96 said:
Should've, I agree James!

What should I put in for spark plugs & wires? I only got 24.94478368mpg @ 75 mph Hwy & very little city driving! 192mi worth total!!!😧
Just a reminder it's a 2004 Pontiac Grand Prix GTP 3.8l Supercharged with 65,245mi.
I plan on putting in my K&N sooner than later!

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You are gonna get a lot of opinions on plugs and wires. So, my choice, for your situation would be cheap 7mm wires and personally, TR55's for plugs.
 
Where does one find the gap as the dealership didn't have, nor would they supply me with, an owners manual? 😠

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Opinions are welcome with a reason please!

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Holy buckets all of this fluid better help my mileage, $!
I'm still wanting some opinions & reasons why on sparkplugs & new wires!
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Sigh, K&N and royal purple..



Those plugs will be fine, factory gap is .060 but that's too large in my eyes aswell. These car are known to misfire at idle in many cases, but it's so suttle that most never even know or even understand what they are feeling for. I run anywhere from .050 to .055 to help reduce that from happening.

As always run 91+ octane and yada yada yada. Clean the MAF sensor when you take stuff apart, a dirty sensor is a non accurate sensor. I wouldnt expect to see great gas mileage, they suck in the city because of gearing and heavy foots. Figure 13-18 city and 26-30 freeway if you cruise around 65-70mph.
 


Fivefingerdeathpunch said:
Sigh, K&N and royal purple..



Those plugs will be fine, factory gap is .060 but that's too large in my eyes aswell. These car are known to misfire at idle in many cases, but it's so suttle that most never even know or even understand what they are feeling for. I run anywhere from .050 to .055 to help reduce that from happening.

As always run 91+ octane and yada yada yada. Clean the MAF sensor when you take stuff apart, a dirty sensor is a non accurate sensor. I wouldnt expect to see great gas mileage, they suck in the city because of gearing and heavy foots. Figure 13-18 city and 26-30 freeway if you cruise around 65-70mph.
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Wires?:confused:

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Yup that is a MAF, not exactly the style in your car but similar.

Just remove it completely and use MAF cleaner on it. Let it sit for a few minutes and re-install. Simple and quick but an important thing to do as they get dirty quicker than most think.
 
Will upping the octane really help as I was advised to use 85(87 sorry) octane?

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Your owners manual says you MUST run 91+ octane.

I suggest you never use anything else, unless you wish to replace your motor sooner that you'd want too.

Whoever said using 85 octane is okay, clearly has no clue about the intenal workings of a motor. Low compression with forced induction needs higher octane.
 
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