New Member

[Badgers4life]

How is it going all?

I have a 2003 Pontiac Grand Prix 3.1L SE with around 105,000 miles on it. A recently added car to my inventory and I have already added some nice interior upgrades and some 16" rims I am about to start on a couple mods for my car (engine and exhaust wise) and I will definitely be needing some opinions!

[importisland13]

welcome =]

[Badgers4life]

I like your location text "among the noobs" lol

[TexasTanker19kilo20]

Welcome to GPF, pics of ride?

[SlowNA06]

Ahoy badgerdude. Gettin' on up there in terms of a 3.1's lower intake manifold gasket. Good thing to start researching.

[ctracer]

hey bud! welcome. i too have a 3.1.
get an intake. get some bigger exhaust manifolds off a car with a 3500 engine and a downpipe. maybe even a bigger throttle body too. i think milzymotorsports.com offers a tuned PCM.

[Badgers4life]

Nice to see posts already!

When does that lower intake gasket usually go? I have seen quite a few people post about that...

As far as upgrades, I am making my own intake with a k n cone filter, I am changing plugs to irridium ones and also Taylor street thunder 8mm wires. Also, I am replacing my stock throttle body with a 3400 series one. It will give me another 4mm of intake for the T.B.. Any other suggestions? The exhausts manifolds have been recommended a couple times by friends, but that will come as more of a summer project.

Any other problems I could be encountering soon normal wear and tear wise? And what about with my mods, any pre/post installation problems?

Pics will come soon!

Thanks again for the early replies!

[SlowNA06]

The lower intake manifold gasket on 3.1's and 3.4's seems to last mmmmaybe 150,000 miles. The gasket starts letting coolant into the oil and there will be a sweet smell in the exhaust. It means you'll see disappearing coolant, and the oil will turn into a milkshake. The engine holds 4.5 quarts of oil, and I just drained 10 quarts out of a friend's 3400 with 154,000 miles on it - way too far gone. Just keep an eye on things and you'll be fine.

[TLSheff]

[Badgers4life]

Alright thanks, I will definitely keep an eye on that then