<span style=" font-size:10pt;font-family:sans-serif">John,</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">I'm a big advocate
of Power Probe tools. Here is a short circuit finder I have...</span>
<br><a href="https://www.amazon.com/Power-Probe-PWP-PPECT3000-ECT3000-Electrical/dp/B0719JV971/ref=sr_1_6"><span style=" font-size:10pt;color:blue;font-family:sans-serif">https://www.amazon.com/Power-Probe-PWP-PPECT3000-ECT3000-Electrical/dp/B0719JV971/ref=sr_1_6</span></a>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">Note, the suite
of PP tools is so much more powerful then I even use. If you are
close to NJ, swing by and we can see what we can find if you don't want
to dump the money into these tools <GASP> 8>) (I did
buy all of them because they are so helpful.)</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">I had a similar
short on a Jeep TJ about a while ago.(before I had them) I gave up
trying to find it, then I dropped it off at a buddy's shop and I challenged
him to find it. 4 months later, he fix it. It was a short in
a wire clip. He used the PP.</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">Of course if you
had a new harness, that can't be the same thing, but the PP tools can find
things that I didn't even know where issues. It also help me find
a ground issue on trailer lights that was completely counter-intuitive.</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">Moose</span>
<br>
<br>
<br>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">From:
</span><span style=" font-size:9pt;font-family:sans-serif">"john
niolon" <jniolon@att.net></span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">To:
</span><span style=" font-size:9pt;font-family:sans-serif">eric@megageek.com,
"shop-talk" <shop-talk@autox.team.net></span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Date:
</span><span style=" font-size:9pt;font-family:sans-serif">05/19/2026
10:02 PM</span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Subject:
</span><span style=" font-size:9pt;font-family:sans-serif">Re:
[Shop-talk] strange automotive electrical problem</span>
<br>
<hr noshade>
<br>
<br>
<br><span style=" font-size:12pt;font-family:Segoe UI">Hey Moose, thanks
for the reply. Harness was done by a pro that does it for a living...He
is meticulous. He completely strips everything</span>
<br><span style=" font-size:12pt;font-family:Segoe UI">from the car then
starts from a blank slate... Everything new.. Nice looms and grommets at
every hole and hides as much of it as he can.</span>
<br><span style=" font-size:12pt"> </span>
<br><span style=" font-size:12pt;font-family:Segoe UI">Every component
was new and oem or better... no import crap. I'm of the same opinion
as you afa a short to ground but it's gotta be hidden inside something</span>
<br><span style=" font-size:12pt;font-family:Segoe UI">that we can't see.</span>
<br><span style=" font-size:12pt"> </span>
<br><span style=" font-size:12pt;font-family:Segoe UI">Someone on my ford
forum suggested putting a volt meter in the circuit and watch the voltage
for a drop...but you're so busy trying to get out of traffic and not</span>
<br><span style=" font-size:12pt;font-family:Segoe UI">get plowed it's
difficult to remember to watch the meter.... and yes this has been
going on for over a year...intermittently and even after all the changes...
it persists</span>
<br><span style=" font-size:12pt"> </span>
<br><span style=" font-size:12pt;font-family:Segoe UI">john</span>
<br><span style=" font-size:12pt"> </span>
<br><span style=" font-size:12pt;font-family:Segoe UI"><b>----- Original
Message -----</b></span>
<br><span style=" font-size:12pt;font-family:Segoe UI"><b>From:</b> <</span><a href=mailto:eric@megageek.com><span style=" font-size:12pt;color:blue;font-family:Segoe UI"><u>eric@megageek.com</u></span></a><span style=" font-size:12pt;font-family:Segoe UI">></span>
<br><span style=" font-size:12pt;font-family:Segoe UI"><b>To:</b> shop-talk
<</span><a href="mailto:shop-talk@autox.team.net"><span style=" font-size:12pt;color:blue;font-family:Segoe UI"><u>shop-talk@autox.team.net</u></span></a><span style=" font-size:12pt;font-family:Segoe UI">></span>
<br><span style=" font-size:12pt;font-family:Segoe UI"><b>Cc:</b> john
niolon <</span><a href=mailto:jniolon@att.net><span style=" font-size:12pt;color:blue;font-family:Segoe UI"><u>jniolon@att.net</u></span></a><span style=" font-size:12pt;font-family:Segoe UI">></span>
<br><span style=" font-size:12pt;font-family:Segoe UI"><b>Sent:</b> 05/19/2026
4:40:59 PM</span>
<br><span style=" font-size:12pt;font-family:Segoe UI"><b>Subject:</b>
Re: [Shop-talk] strange automotive electrical problem</span>
<p style="margin-top:0px;margin-Bottom:0px">
<hr></p>
<br><span style=" font-size:10pt;font-family:sans-serif">John, I would
have bet money it was a hidden wire short somewhere. It had all the Hallmarks.
But you stated the wiring harness what completely replaced. So, that
rules that out...</span><span style=" font-size:12pt;font-family:Segoe UI">
<br>
</span><span style=" font-size:10pt;font-family:sans-serif"><br>
Or does it?</span><span style=" font-size:12pt;font-family:Segoe UI"> <br>
</span><span style=" font-size:10pt;font-family:sans-serif"><br>
My question, when you said 'headlight to taillight', that is complete.
BUT was there ANY wire that was in that car that wasn't part of the
harness?</span><span style=" font-size:12pt;font-family:Segoe UI"> <br>
</span><span style=" font-size:10pt;font-family:sans-serif"><br>
Something in dash, neutral switch, tranny indicator, or some other component?</span><span style=" font-size:12pt;font-family:Segoe UI">
<br>
</span><span style=" font-size:10pt;font-family:sans-serif"><br>
I'm still betting on a wire short, but I guess it could be a short inside
a component. Maybe inside the alt or other part?</span><span style=" font-size:12pt;font-family:Segoe UI">
<br>
</span><span style=" font-size:10pt;font-family:sans-serif"><br>
BTW, I'm assuming it was doing this, before you did all these mods, right?
</span><span style=" font-size:12pt;font-family:Segoe UI"><br>
</span><span style=" font-size:10pt;font-family:sans-serif"><br>
Anyway, that is a stumper.</span><span style=" font-size:12pt;font-family:Segoe UI">
<br>
</span><span style=" font-size:10pt;font-family:sans-serif"><br>
Moose</span><span style=" font-size:12pt;font-family:Segoe UI"> <br>
<br>
<br>
</span><span style=" font-size:9pt;font-family:sans-serif"><br>
From: "john niolon" <jniolon@att.net></span><span style=" font-size:12pt;font-family:Segoe UI">
</span><span style=" font-size:9pt;font-family:sans-serif"><br>
To: "shop-talk" <shop-talk@autox.team.net></span><span style=" font-size:12pt;font-family:Segoe UI">
</span><span style=" font-size:9pt;font-family:sans-serif"><br>
Date: 05/19/2026 13:16</span><span style=" font-size:12pt;font-family:Segoe UI">
</span><span style=" font-size:9pt;font-family:sans-serif"><br>
Subject: [Shop-talk] strange automotive electrical
problem</span><span style=" font-size:12pt;font-family:Segoe UI"> </span><span style=" font-size:9pt;font-family:sans-serif"><br>
Sent by: "Shop-talk" <shop-talk-bounces@autox.team.net></span><span style=" font-size:12pt;font-family:Segoe UI">
<br>
</span>
<hr noshade><span style=" font-size:12pt;font-family:Segoe UI"><br>
</span>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Strange
automotive electrical problem we need help with…</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">55
chevy automatic with 383 stroker motor, carbed, p/s,p/b,a/c</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Dakota
digital dash system including neutral safety switch and</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Transmission
gear indicator</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Segoe UI"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">When
it is running right, it’s scary strong. Cruises nicely.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Segoe UI"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Problem…
when driving the engine dies like you cut it off…BUT will start back up</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Immediately
and run perfectly till the next time it does it. Might be 15 minutes…15
days or</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">three
month later. Might do it 4 times in a row or once and not repeat. Speed
does not effect it. </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Engine
temp does not effect it… does it hot or cold. With the a/c on or
off. It does not have a</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Cutoff
switch in the system. Longest period with no failure is 7 months…
shortest was 4 minutes.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Segoe UI"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">When
it stalls we checked fuel by looking in the bowl of carb and gas is spraying
as it should</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">So
we are assuming electrical of some sort. So far we’ve done the following…</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Segoe UI"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Replaced
battery with new red top optima battery and all new battery cables (2 gauge
I think)</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Replaced
all ground cables frame/block… frame/chassis with 2/0 welding cable with
new crimped</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">connectors
and clean, bare metal attachment points</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">replaced
ignition switch (twice… first with import then with oem switch)</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">replaced
coil and distributor with MSD system with spark control box, separate coil
and distributor…</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">it
was taken from running vehicle. It's doing the same thing as
the original ignition system.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Replaced
complete wiring harness…headlight to taillight with new Autowire harness…including
all</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Switches
and relays. Professionally done.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Everything
else electrical works without a glitch… we are at the wall here…</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Segoe UI"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Ideas,
suggestions, calculated wild a** guesses welcomed… </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">thanks</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Segoe UI"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">john</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri"> </span><span style=" font-size:10pt;font-family:Segoe UI">_______________________________________________<br>
<br>
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