[s-cars] Coils anyone??

[Mark Strangways]

Bruce, also do a thorough visual inspection of the plug wires.
When I first got my S4, I had the same bucking issues, it would shack like 
hell under boost levels above about 16 psi.
After many weeks and $$$, my mechanic gave up. I then found a week later 
that one of the coil wires had a split in it. I suspect under big boost, the 
crack proved less resistance than the plug did. So the spark went there.
Worth a 5 minute check, they are hard to see.. real hard. Even wrap them all 
in some black tape and try driving.
Once I found the crack, I wrapped it in black tape and it worked great. The 
first time I had ever felt full boost.

Mark
----- Original Message ----- 
From: "BRUCE MOCK" <bkeemock at msn.com>
To: <s-car-list at audifans.com>
Sent: Wednesday, June 13, 2007 12:51 AM
Subject: [s-cars] Coils anyone??


> Guys
>
> I've been with this fine group _almost_ since its beginning... I'm at my 
> wits end here.  My '93 S4 is bucking under higher boost levels - classic 
> bad coil symptoms.  I def do not have a boost leak or bad plugs.  I have a 
> weak coil but I am not able to diagnose it to which ONE of the 5 - and my 
> trusty mechanic is saying "let's just replace all 5!  It'll be around a 
> thousand bucks"  Bull.
>
> There must be someone on the list here that has converted to the new style 
> coils - that still has their old-style coils lying around.  Would one of 
> you be willing to sell me one or even several coils?   (I'm now thinking I 
> may actually have more than one bad one in the mix)
>
> Thanks so much
>
> Bruce
> '93 S4
>
>
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