After installing new spark plugs, wires and a new coil pack, the engine is backfiring?

2007 DODGE CARAVAN
189,302 MILES • 3.8L • V6
Avatar
LAURATROY05
  • MEMBER
  • 3 POSTS
I put new spark plugs and spark plugs, wires, and a new coil pack and now it's back firing... What could make it backfire?
Jun 27, 2023 at 4:44 AM
Advertisement
Avatar
MATHGEN
  • ASE Certified Mechanic
  • 128 POSTS
  • ASE Certified Mechanic
Hi there. The first thing that comes to mind is crossed plug wires. I would double check to make sure the wires are connected in the right order. I have provided a diagram showing the correct firing order. Please let me know if you need any further help.
Jun 27, 2023 at 5:28 AM
Avatar
LAURATROY05
  • MEMBER
  • 3 POSTS
Thank you... And I followed your diagram and the back 3 wires were crossed so now the car is running good.
Jun 27, 2023 at 5:58 AM
Avatar
MATHGEN
  • ASE Certified Mechanic
  • 128 POSTS
  • ASE Certified Mechanic
I'm happy to hear that! Have a great day.
Jun 27, 2023 at 6:20 AM
Avatar
LAURATROY05
  • MEMBER
  • 3 POSTS
And you do the same.
Jun 27, 2023 at 8:27 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
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.