Mass Chit-Chat
5th Gear Member
Joined: Aug 2005
Posts: 3,213
From: Boston, MA
1st Gear Member
Joined: Jan 2012
Posts: 138
From: MA
Well, I had a "fun" time yesterday afternoon. Was able to sneak out for a cruise in the warm weather, and just as I'm pulling onto Rt 128, the car start skipping, and power is way down. Pull over the first safe place I can find to discover a plug wire had popped off the #1 spark plug.
Second time this has happened in the past month or so, and both times on the same plug. Thinking I have a failed seal on the spark plug. I've heard of cases where the seal between the center electrode and the porcelain goes bad and allows compression gases to slip by, hence pressurizing the plug boot. If it's a tight fitting boot, after a while...*pop*
Of course, since the engine was good and hot, I managed to singe my hands multiple places getting the wire back in place to get it home.
Second time this has happened in the past month or so, and both times on the same plug. Thinking I have a failed seal on the spark plug. I've heard of cases where the seal between the center electrode and the porcelain goes bad and allows compression gases to slip by, hence pressurizing the plug boot. If it's a tight fitting boot, after a while...*pop*
Of course, since the engine was good and hot, I managed to singe my hands multiple places getting the wire back in place to get it home.
5th Gear Member
Joined: Aug 2005
Posts: 3,213
From: Boston, MA
Joined: May 2012
Posts: 48
From: Massachusetts
Well, I had a "fun" time yesterday afternoon. Was able to sneak out for a cruise in the warm weather, and just as I'm pulling onto Rt 128, the car start skipping, and power is way down. Pull over the first safe place I can find to discover a plug wire had popped off the #1 spark plug.
Second time this has happened in the past month or so, and both times on the same plug. Thinking I have a failed seal on the spark plug. I've heard of cases where the seal between the center electrode and the porcelain goes bad and allows compression gases to slip by, hence pressurizing the plug boot. If it's a tight fitting boot, after a while...*pop*
Of course, since the engine was good and hot, I managed to singe my hands multiple places getting the wire back in place to get it home.
Second time this has happened in the past month or so, and both times on the same plug. Thinking I have a failed seal on the spark plug. I've heard of cases where the seal between the center electrode and the porcelain goes bad and allows compression gases to slip by, hence pressurizing the plug boot. If it's a tight fitting boot, after a while...*pop*
Of course, since the engine was good and hot, I managed to singe my hands multiple places getting the wire back in place to get it home.
5th Gear Member
Joined: Aug 2005
Posts: 3,213
From: Boston, MA
I had a plug fail like that in the 4.6L in my old Cougar. It popped off on the way to work, so I put it back on, then it popped off again on the way home. When I took the plug out, there were scorch marks on the porcelain, but not any on the threads. I put in a new plug, and it never happened again.
Thread Starter
5th Gear Member
Joined: Jan 2009
Posts: 2,662
From: Mass
I have like 3 pairs I use all the time.
5th Gear Member
Joined: Aug 2005
Posts: 3,213
From: Boston, MA
1st Gear Member
Joined: Jan 2013
Posts: 148
From: Massachusetts
(Sorry for always going off-topic) Soooooo, I bought HIDs today. lol. I was at my buddys shop and he had just put some in his car so it was a spur of the moment thing. Hopefully they'll be here by monday so i can put them in. 
5th Gear Member
Joined: Aug 2005
Posts: 3,213
From: Boston, MA
Cool. Do your existing headlights have the black metal shields in front of the bulbs?
1st Gear Member
Joined: Jan 2013
Posts: 148
From: Massachusetts