2006 misfiring cylinder #4
#1
2006 misfiring cylinder #4
My 2006 Pacifica started running very rough a couple of days ago and the engine light came on. The code reads P0304.
I had just changed the plugs two weeks ago (100,000 mile service) and was hoping that the new plug or the coil pack were bad. So, I pulled the #4 cylinder plug and it was gunked up very bad. I replaced the plug and put in a new coil pack in case it was not working.
After completing, I ran the car and within 5 minutes the same roughness was back. Pulled the coil pack and plug and the new plug was fouled badly. Looks like mud on the tip. This after only 5 minutes of driving. Also, i noticed the catalytic convertic was very hot, glowing in fact.
Can anyone point me in a direction? What should i try next?
Thank you for your time.
I had just changed the plugs two weeks ago (100,000 mile service) and was hoping that the new plug or the coil pack were bad. So, I pulled the #4 cylinder plug and it was gunked up very bad. I replaced the plug and put in a new coil pack in case it was not working.
After completing, I ran the car and within 5 minutes the same roughness was back. Pulled the coil pack and plug and the new plug was fouled badly. Looks like mud on the tip. This after only 5 minutes of driving. Also, i noticed the catalytic convertic was very hot, glowing in fact.
Can anyone point me in a direction? What should i try next?
Thank you for your time.
#3
Thank you. Can you explain what you think might be the problem and why a compression test is next? i just want to understand the thought process as i continue.
also, is this something i may be able to do? i am mechanically inclined. Do they sell the instruments at regular auto stores?
thanks for time!
also, is this something i may be able to do? i am mechanically inclined. Do they sell the instruments at regular auto stores?
thanks for time!
#8
I used Bosch Platinum's +4....so i did not have to gap them.
i did change the #4 plug and coil pack after i got the P0304 code and i had the same result after 5 mins of driving.
Did i pull a dumbsh**t with the plugs? Should i replace all plugs with Champion and try again?
Could this have caused the #4 cylinder to misfire?
thanks for your time.
i did change the #4 plug and coil pack after i got the P0304 code and i had the same result after 5 mins of driving.
Did i pull a dumbsh**t with the plugs? Should i replace all plugs with Champion and try again?
Could this have caused the #4 cylinder to misfire?
thanks for your time.