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James
James, Ford Technician
Category: Ford
Satisfied Customers: 3625
Experience:  Ford Senior Master Tech, Ford gas and diesel expert, ASE Certified
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I'm a diy'er and changed my plugs some time ago, however, my

Customer Question

I'm a diy'er and changed my plugs some time ago, however, my truck still has a stumbly thing going on with light acceleration. So I thought I'd now replace the COPs and did so this afternoon. Now the truck runs horrible, rough idle and now power under hard acceleration and can't maintain speed without shuttering and shaking. Any ideas?
Submitted: 1 year ago.
Category: Ford
Expert:  James replied 1 year ago.

Hello, where did you purchase your new coils from and were they about $20 each?