greasemanicure
Well-Known Member
- Joined
- November 1, 2006
- Messages
- 168
- Reaction score
- 0
- City, State
- Burlington, NC
- Year, Model & Trim Level
- 1996 4X4 4R->5R mod
I went through the threads about changing spark plug wires on my 96 4.0L OHV Explorer. I found a number of threads about spark plug types and one showed plugs with a long reach, but only 5 or 6 threads even though it was as long from tip to seal as ones with all threads.
I pulled #3 as the cylinder has been dead. The plug is all carboned up on the unthreaded part and also blackened on the flats and even the ceramic and the connector at the top.
The plug offered typical resistance to remove it. Even so, might this plug have been poorly seated and leaking since the last plug change? If so I need to "thank" the mechanic who last changed plugs.
I say #3 was dead in that my timing light would not trigger when clamped onto the #3 spark plug wire. Changed the wire which was broken in the retainer, but still #3 was dead. Changed the plug and #3 was back in action.
Any thoughts?
Joe
I pulled #3 as the cylinder has been dead. The plug is all carboned up on the unthreaded part and also blackened on the flats and even the ceramic and the connector at the top.
The plug offered typical resistance to remove it. Even so, might this plug have been poorly seated and leaking since the last plug change? If so I need to "thank" the mechanic who last changed plugs.
I say #3 was dead in that my timing light would not trigger when clamped onto the #3 spark plug wire. Changed the wire which was broken in the retainer, but still #3 was dead. Changed the plug and #3 was back in action.
Any thoughts?
Joe