I would thinks it'* the torque converter. Try this when your going up hill and it'* doing it hold the gas at the same position and lightly apply pressure to the brake while watching the tach. As you apply pressure the computer will pick-up the brake signal and unlock the TC. if the chuggle goes away it is trans related. Which would mean the tcc, TC or the wiring in the trans has gone bad. Just looked at a GTP today with the same complaint. Thats what'* wrong with it.

True, when brakes are appied while in TCC engage, the TCC will disengage. It actually functions (TCC disengage) on a micro switch actuation down at the brake pedal.

You say you had a rought idle before the tune-up, correct? Did you have the misfire problem too before the tuneup or did that come after the "tune-up" with plugs and wires change?

yeah my MAF died...no cleaning involved there, it just up and died. So i replaced it and now all is good.

sounds like the guys know what they are talking about, it does sort of sound like a TC problem, because if it was the same relation to the problem i had, then it would be stalling every chance it got, so thats not it. Yeah go back to the stealership and tell em to investigate a little further for the job you already paid them for.

Man thanx for all the advice I sure will try to work out something with the stealership...lol.

And before the tune up,Yes it did chug a little once or twice but it has gotton worse for sure or should I say recures more often than before but just the same as before the tune up.Sorry I could not responed sooner had to go to work today fun fun.

You guys might be interested in knowing today I had to run some arrons for work and I was behind a slow poke and was going like 10 to 15 mph and the car almost died but then caught and then again it felt like it wouldnt go and then caught and I looked at the dash and sure enough there is a ses light on,I was kinda happy believe it or not because now there a code and maybe I can get to the bottom of it,But you know what,,she seems to be runing really good since this happened today...weird.The idle is smoth and on the way home it never chugged once but the ses light is still on and there will be no excuses this time from the stealership.Maybe could it be possible that the pcm needed to learn from the new readings from the new o2 sensor because I only changed the o2 yesterday and only drove 3 cycles since the change???I doubt it but I hope,lol.Well I will be sure to post what I get for results, thanx for all the help you guys rock!

Well so I thought it was runing better I went for a spin just now and sure enoough it almost died out again twice just like earlier in the day,so since I changed the o2 sensor the chugging got worse at times to the point of almost dieing out but then it catches.Damn I wonder if the o2 replacement mad the problem worse or the new o2 sensor got fried out because of the existing problem it had,I got to get a odb reader its killing me to find out what set the ses light off today.

Oh ya I tried the going up hill and keeping the gas steady and depressing the brakes and it did absoulutely nothing at all I even tried mutiple times and didnt notice anything at all.

mine did the same Think an the son of a b1tche5 at the dealer said I needed a tune up it was mey tranny

Did the car do something on idle in park, hesitations, struggling, die ...?

Or it just happen when you are in gear?


When your car is dying, is there kind of black smoke coming out of your exhaust if you hold the throttle?

If its dying because you run too rich, you will see smoke. (when its dying)

Other than that, your engine probably run fine. You will see when they scan it, on the short and long term fuel "mixture" if it run rich or lean.

But they should already seen it.

bears, now these symptoms are either fuel, or ignition & not tranny related. Retrieve codes as soon as possible.