Contour Enthusiasts Group Archives Forums General Troubleshooting Low rpm stutter/cough/skip misfire?

When sitting at a red light it feels like the engine is misfiring or something. Its hard to explain, its kind of like a cd skipping when playing it, and it occurs without any patterns, just keeps happening when sitting at a red light in drive. Also when I step on the gas, it bogs a little bit and I feel a decrease in performance. I dont have any codes for being lean, the only code that was engine related (there was a transmission code) was for the catylic converter and this is after replacing all 4 of my O2 sensors. I have new spark plugs and I rebuilt the upper/lower intake manifolds about 3 months ago. Could this be from plug wires?

I also forgot to mention that this happens with any amount of gas whether it be full, half, or empty.

check your plug wires, check your plug gaps, and change your fuel filter if it's old.
sounds like a plug wire thing, though.

If you change the plug wires and it continues. The next thing to change would be the coil pack. I changed the spark plugs and wires and it continued. Then I replaced the coil pack. Then bingo, fixed.