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

Tiny
LAURATROY05
  • MEMBER
  • 2007 DODGE CARAVAN
  • 3.8L
  • V6
  • 189,302 MILES
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?
Tuesday, June 27th, 2023 AT 4:44 AM

4 Replies

Tiny
MATHGEN
  • MECHANIC
  • 128 POSTS
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.
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Tuesday, June 27th, 2023 AT 5:28 AM
Tiny
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.
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Tuesday, June 27th, 2023 AT 5:58 AM
Tiny
MATHGEN
  • MECHANIC
  • 128 POSTS
I'm happy to hear that! Have a great day.
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Tuesday, June 27th, 2023 AT 6:20 AM
Tiny
LAURATROY05
  • MEMBER
  • 3 POSTS
And you do the same.
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Tuesday, June 27th, 2023 AT 8:27 AM

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