2005 Chevrolet Impala Q&A

2005 Chevrolet Impala Question: Misfire on my 3.4

Had a slight misfire. Diagnosed to number 5. Put on a new coil pack and now it runs worse. New plugs and wires. Whats the deal? Could it be a bad new part? -
Answer 1
Yes ,you need to do more testing ,try putting old one back in.... -
Comment 1
I started it today and it ran fine. Idk what is going on with it. Been doing this stuff 22 years and never seen anything like this. -
Comment 2
Hahahahahaha,welcome to my world ,crazy rite ,now its fine?. -