[s-cars] Thanksgiving Misadventure

[Mark Strangways]

Check you plug wire as well.
I had tremendous issuses when I first got my S4.
It bucked like a horse under high load.

Many dollars and hours later, my mechanic threw the towel in. It was then I started to look at things and by fluke I saw the split rubber on the wire.
It cause the spark to jump to the cylinder head under high load only. It was the smallest little split, barely visible, but that was all it needed.
Changed the boots and was finally able to appreciate my new S4.

Mark
On 2012-01-02, at 4:40 PM, Robert Myers wrote:

> 
> And, the $64K answer is --- the OEM crap WILL go south again and it's time to just toss the whole P(ile)OS and do a proper upgrade as you suggest, JC.
> 
> Bob
> 
> At 04:21 PM 1/2/2012, JC wrote:
>> Keith -
>> 
>> Def suspect that coil.  Pulling apart a coil set is easier than it looks. Start at the connectors - after peeling back the boots, you remove the outer connector housing off the internal rectangular core, then carefully remove each of the applicable pins from the connectors.
>> You should then be able to slip the wires out of the wiring looms (although I just went ahead and cut open those wiring sheaths to make it easier then zip tied things up afterwards).  With that you can pull each coil out to be an independent unit and mix-and-match them to get a good set.
>> 
>> Of course stock wiring lengths differ so you probably need to solder/splice wires to ensure you have enough length to reach the coil location.
>> 
>> Also if the stock wires are hard and cracking then yes you can replace those.  Before I gave up on OEM coils I rewired my entire rack with nice new teflon insulated wire soldered right up to near the coil and covered with heavy duty shrink wrap with internal adhesive (special  kind of shrink wrap that basically has a layer of hot-glue type stuff inside it).   This worked very nicely for some time until yet another OEM coil started to go and I got fed up with taking them apart and resoldering.
>> I still have 11 OEM coils in the basement and I'm sure there's a good 5 in there somplace but I don't have the patience to screw around with it. Long live the awesome power of and easy diagnosis of the LS2s & Magnecors.
>> 
>> JC
>> 
>> On 1/2/2012 3:58 PM, Keith Franchetti wrote:
>>> Update:
>>> 
>>> 
>>> The one obvious possible source of my problem is that I'm still using the
>>> coil that got damaged (partially melted) on the Thanksgiving Day when spark
>>> plug blew out and caused the fire.  (You'll remember I also had a
>>> significant valve cover gasket failure causing there to be a LOT of oil in
>>> the spark plug bore hole--so that when the plug blew out, there must have
>>> been a bit of fire that completely melted the boot, and some of the plastic
>>> covering to the coil).  I actually HAVE a spare set of coils all still
>>> wired in a loom--though the wiring overall is not in great shape.  I'm at a
>>> bit of a loss as to how to replace the one coil.
>>> 
>>> That's where I am right now.  Any thoughts or recommendations?  Thanks!
>>> 
>>> Keith
>>> 
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