2000 Pontiac Grand Prix Engine spudders while accelerating

2000 PONTIAC GRAND PRIX
93,000 MILES • 6 CYL • FWD • AUTOMATIC
Avatar
2000 GRAN PRIX
  • MEMBER
  • 1 POST
threw a code says cyc 2 misfire. changed the cyc 2/5 coil pack, check engine light hasnt come on but it still spudders bad under acceleration and around 6-7,000 rpm the check engine light flashes but there are no codes to read so please dont say check for codes.

I saw someone with similar problems but never saw a responce to what fixed it.
Nov 28, 2009 at 3:03 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
CRZYDRVR
  • MEMBER
  • 432 POSTS
First thing I would do is test the plug wires. Next was the coil pack new or used? Try to swap a plug wire with another one, as well as the coil pack. If the problem is still showing on those 2 cylinders, then check the wiring harness going from the ECM to the ICM.
Dec 3, 2009 at 3:34 AM