2000 Pontiac Grand Prix RPM oscillating?

Question:
After warms up when pushing the accelerator the engine rpm oscillate and there is not power. Also, when applying a lot of power from a stop the engine jerks. It has a 3800 engine.

Answers:

My Honda Accord(96) and the gas pedal is very hard to push down. Can this be fixed?

Forget the head gasket thing, or the catalytic converter. The new "cats" are a fine mesh, it is doubtful that one could clog up.
The distributor cap, if you have one, could be defective. Look for vacuum leaks, that could cause the lack of power as well. As for the engine RPM oscillating, is this the Tachometer, or is the engine speed going up and down on it's own? If this is the "tach" then there is a problem with the pick up from where this device connects to the engine. It's probably slipping after the engine warms up. Another possible engine jerk source is that the transmission is low on fluid. This could also cause a lack of power, or the engine jerking.

The ventilation system in my car is broken?

sounds like a blown head gasket to me.

On the car, where can I?

have fun with that one. its expensive.

is my car safe to drive?

thats what you get for buying one of those horrid cars.

No spark on 1999 Intrepid, JM. Thanks?

Sounds like an ignition miss. That is the ignition system has a fault. Would be more pronounced once the engine is warmed up.

How much should it cost to have your ignition system repair.?

possable plugged cat convert. check with your local dealer. there was a customer satifaction recall on some of t he generals cars for plugged convertors.

Is this car estimate right?! I drive a '01 Saturn SC1 with 93K and had it at the dealership. (I live in IL)

it could be this

Blazer S10 1989 Submirged in water problem...?

bad cat convert what needs to be replaced

Does a new transmission installed in a 1996 Lumina Van really cost $2,500 and is it woth it?

or bad head gasket

What is the best way to stop water from leaking into your car interior?

or Timeing belt

how to change a timing belt in mitsubishi 3000 gt?

most of the time when a car dont have power it's the timeing belt or the head gasket is it useing water or oil?

Is the cam shaft housing cover hard to replace on a 1998 chevey malibu 2.4L?

good luck