lately Ive been noticing a loss of peppyness (is that a word?) Top end is way off and acceleration is not as it once was.
Im thinking fuel delivery , but does anyone have experience with this? something I can check before tearing the car apart looking for a red herring.
no error codes are prevalent.

 

how many miles do you have on it?

do you do regularly scheduled maintnence?

 

yep all maintenance is done.
mileage is approx 120k miles.

 

2.5 or 3.2?

check air filter. Im inclined to thinkt that its a airflow problem.

Did u get ur free service done at dealer under the emissions warranty? (spark plugs, oil, oil filter etc.)?

I also noticed a lack of pep in my 3.2 after i came back from vacation. Turned out i was losing backpressure in the exhaust due to a sizable hole in the "b" pipe. Car also started to sound like a diesel. Relpaced the pipe among other things, and torque has been restored!

Could be some carbon buildup (maybe?) inside.....try sucking some of that "seafoam" stuff through the PCV valve.

Oh, and check to see if your EGR ports are clogged - this should throw a code but u never know.

 

3.2
filter is good, plugs too,new exhaust, I'm at the point where I might just ram a prybar thru the cat converter and get some air moving.
I have no idea how to clean EGR ports. Ive looked up here on this board and its not that clear. Im not getting any codes either.
Im getting passed by old Grand Ams .... I can barely take it anymore. maybe a gallon of Tolulene in my tank might help.