66427
Well-Known Member
- Joined
- October 18, 2006
- Messages
- 273
- Reaction score
- 13
- City, State
- Clarksville, TN for now...or forever
- Year, Model & Trim Level
- 01 EB
2001 5.0 250k
Saturday, my son says the Explorer is running a little rough. I told him take my SHO to work I'll drive the Explorer.
I went out for an errand and it seemed to run fine until I slowed to pull into the store I was going to, it started to miss a little bit. About a 5 mile trip.
When I left the miss was still there. As I got closer to home, I noticed a significant power loss, then all of a sudden everything is fine hitting on all eight and making great power again. At the last major intersection as I slowed I could tell the miss was back, and increasing. Not so much that it wouldn't idle, but noticeable. Pulling back into the house it was worsening.
I had another errand to run later and wanted to take it on another longer drive and get everything good and warm to see if that would effect it, as my son has been only doing short runs for some time now going to school and work, 8 miles and 4 miles respectively. I did not make it far, about 3 miles and it was skipping so bad I doubted my ability to make it home. I did, but used neutral and a bit of throttle at red lights.
We had put new plugs and wires this past summer, so my first thought was maybe coils?
That night we started poking around and found one plug (#2) was "close" to the header (yes, TMH's) and was...brittle.
Sunday morning I went down and bought a new set of Duralast as I had the Duralast Gold Lifetime Warranty. They do not make the gold anymore.
Changed the wires, started it up and whew Running like it's only got 100k on it.
Backed it out of the garage, went to stringing lights, tending the dog, wrapping for xmas...etc etc...
Had another errand and told my son lets go. Got to the first light and the slight skip is back. We leave the light and as we're accelerating, my son says "I've got it to the floor" We're hardly accelerating.
Then Whoom! all power is suddenly available and away we go. Get back into traffic and sure enough, the miss is back and real sluggish acceleration.
Got to HD, Got home, more of the same.
But where do I start?
Rechecked the wires, all seated good.
Will a coil pack go intermittently?
Fuel Pump? Will a bad fuel pump supply full pressure, then not, then supply full pressure again?
EGR valve?
No CEL...
As always, Don't try this at home I'm a train....I mean, As always all help and feedback is greatly appreciated.
Greatly appreciated.
Saturday, my son says the Explorer is running a little rough. I told him take my SHO to work I'll drive the Explorer.
I went out for an errand and it seemed to run fine until I slowed to pull into the store I was going to, it started to miss a little bit. About a 5 mile trip.
When I left the miss was still there. As I got closer to home, I noticed a significant power loss, then all of a sudden everything is fine hitting on all eight and making great power again. At the last major intersection as I slowed I could tell the miss was back, and increasing. Not so much that it wouldn't idle, but noticeable. Pulling back into the house it was worsening.
I had another errand to run later and wanted to take it on another longer drive and get everything good and warm to see if that would effect it, as my son has been only doing short runs for some time now going to school and work, 8 miles and 4 miles respectively. I did not make it far, about 3 miles and it was skipping so bad I doubted my ability to make it home. I did, but used neutral and a bit of throttle at red lights.
We had put new plugs and wires this past summer, so my first thought was maybe coils?
That night we started poking around and found one plug (#2) was "close" to the header (yes, TMH's) and was...brittle.
Sunday morning I went down and bought a new set of Duralast as I had the Duralast Gold Lifetime Warranty. They do not make the gold anymore.
Changed the wires, started it up and whew Running like it's only got 100k on it.
Backed it out of the garage, went to stringing lights, tending the dog, wrapping for xmas...etc etc...
Had another errand and told my son lets go. Got to the first light and the slight skip is back. We leave the light and as we're accelerating, my son says "I've got it to the floor" We're hardly accelerating.
Then Whoom! all power is suddenly available and away we go. Get back into traffic and sure enough, the miss is back and real sluggish acceleration.
Got to HD, Got home, more of the same.
But where do I start?
Rechecked the wires, all seated good.
Will a coil pack go intermittently?
Fuel Pump? Will a bad fuel pump supply full pressure, then not, then supply full pressure again?
EGR valve?
No CEL...
As always, Don't try this at home I'm a train....I mean, As always all help and feedback is greatly appreciated.
Greatly appreciated.
