eddie95
Active Member
- Joined
- August 8, 2011
- Messages
- 93
- Reaction score
- 2
- Year, Model & Trim Level
- 2003 Explorer 4.8 AWD
Well, I've been having intermittent missing and my engine wouldn't run all that smooth and would have vibration. Well, I saw a video about checking for corrosion on the grounding plate as well as the contact on the coil pack on the 4.0 OHV.
Well, you wouldn't believe it what I saw when I pulled the coil pack off. I swear the only thing grounding the coil pack was the screws. There was a band of rust around the entire mating surface of the coil pack and none of the metal was smooth and shiny. Well I hit it with some sandpaper, degreased, and reassembled.
I absolutely couldn't believe what I heard when I started it up. The engine that used to send vibrations that you could feel in the drivers seat is running smooth enough to balance a quarter on it! I'm not saying that this is a miracle fix. As a matter of fact it is really just a simple problem and solution. There was a confined space with bare metal that rusted. The rust inhibited the electrical properties, and when it was cleaned, the properties were restored.
So GO CHECK YOUR COIL PACK! It can't hurt and it sure as heck helped in my case.
Well, you wouldn't believe it what I saw when I pulled the coil pack off. I swear the only thing grounding the coil pack was the screws. There was a band of rust around the entire mating surface of the coil pack and none of the metal was smooth and shiny. Well I hit it with some sandpaper, degreased, and reassembled.
I absolutely couldn't believe what I heard when I started it up. The engine that used to send vibrations that you could feel in the drivers seat is running smooth enough to balance a quarter on it! I'm not saying that this is a miracle fix. As a matter of fact it is really just a simple problem and solution. There was a confined space with bare metal that rusted. The rust inhibited the electrical properties, and when it was cleaned, the properties were restored.
So GO CHECK YOUR COIL PACK! It can't hurt and it sure as heck helped in my case.