<html><head></head><body><div class="ydpba66d5b0yahoo-style-wrap" style="font-family:Arial, Helvetica, sans-serif;font-size:16px;"><div><div dir="ltr" data-setdir="false">Check the easy stuff first. If you suspect the ignition, swap in a new rotor. Easy cheap and if it doesn't fix it, you can rule that out and move on.</div><div><br></div><div class="ydpba66d5b0signature"><div style="color: black; font-style: normal; font-size-adjust: none; font-weight: normal; font-stretch: normal; font-size: 12pt; line-height: normal; font-family: Arial, Helvetica, sans-serif;"><div style="color: black; font-style: normal; font-size-adjust: none; font-weight: normal; font-stretch: normal; font-size: 12pt; line-height: normal; font-family: Arial, Helvetica, sans-serif;"><div><font size="4">Dave <br></font></div><div><span style="font-size:10.0pt;font-family:sans-serif;color:black;"><br></span></div><br></div></div></div></div>
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On Wednesday, May 20, 2026 at 07:46:47 PM CDT, Al Fuller <alfuller194@gmail.com> wrote:
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<div><div id="ydp628a187eyiv3660929159"><div><div><div>It sounds like you are/have ruled out fuel starvation, indicating it has fuel as far as the carburetor (and presumably the cylinders), and you appear to be describing a sudden 'cut off' as opposed to the less sudden dieing out do to temporary lack of fuel. Yes?</div><div><br clear="none"></div><div>If so, it seems like it would need to be a fault in the ignition system that allows spark, then changes state to deny spark, then returns to the prior or similar state where spark gets called for, produced and delivered.</div><div><br clear="none"></div><div>________________<br clear="none">Sent from my phone <br clear="none">Best Regards,<br clear="none">Al Fuller</div></div><br clear="none"><div class="ydp628a187eyiv3660929159gmail_quote ydp628a187eyiv3660929159gmail_quote_container"><div id="ydp628a187eyiv3660929159yqt59909" class="ydp628a187eyiv3660929159yqt6206001721"><div dir="ltr" class="ydp628a187eyiv3660929159gmail_attr">On Tue, May 19, 2026, 10:52 PM john niolon <<a shape="rect" href="mailto:jniolon@att.net" rel="nofollow" target="_blank">jniolon@att.net</a>> wrote:<br clear="none"></div><blockquote style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;" class="ydp628a187eyiv3660929159gmail_quote">
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<div><font face="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</font></div>
<div><font face="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.</font></div>
<div><font face="Segoe UI"></font> </div>
<div><font face="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</font></div>
<div><font face="Segoe UI">that we can't see.</font></div>
<div><font face="Segoe UI"></font> </div>
<div><font face="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</font></div>
<div><font face="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</font></div>
<div><font face="Segoe UI"></font> </div>
<div><font face="Segoe UI">john</font></div>
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<div style="FONT-SIZE:12pt;FONT-FAMILY:'Segoe UI';COLOR:#000000;"><b>----- Original Message -----</b></div>
<div style="FONT-SIZE:12pt;FONT-FAMILY:'Segoe UI';COLOR:#000000;"><b>From:</b> <<a shape="rect" href="mailto:eric@megageek.com" rel="nofollow" target="_blank">eric@megageek.com</a>></div>
<div style="FONT-SIZE:12pt;FONT-FAMILY:'Segoe UI';COLOR:#000000;"><b>To:</b> shop-talk <<a shape="rect" href="mailto:shop-talk@autox.team.net" rel="nofollow" target="_blank">shop-talk@autox.team.net</a>></div>
<div style="FONT-SIZE:12pt;FONT-FAMILY:'Segoe UI';COLOR:#000000;"><b>Cc:</b> john niolon <<a shape="rect" href="mailto:jniolon@att.net" rel="nofollow" target="_blank">jniolon@att.net</a>></div>
<div style="FONT-SIZE:12pt;FONT-FAMILY:'Segoe UI';COLOR:#000000;"><b>Sent:</b> 05/19/2026 4:40:59 PM</div>
<div style="FONT-SIZE:12pt;FONT-FAMILY:'Segoe UI';COLOR:#000000;"><b>Subject:</b> Re: [Shop-talk] strange automotive electrical problem</div>
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<div style="FONT-SIZE:12pt;FONT-FAMILY:'Segoe UI';FONT-WEIGHT:normal;COLOR:#000000;FONT-STYLE:normal;"><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> <br clear="none"><br clear="none"><span style="FONT-SIZE:10pt;FONT-FAMILY:sans-serif;">Or does it?</span> <br clear="none"><br clear="none"><span style="FONT-SIZE:10pt;FONT-FAMILY:sans-serif;">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> <br clear="none"><br clear="none"><span style="FONT-SIZE:10pt;FONT-FAMILY:sans-serif;">Something in dash, neutral switch, tranny indicator, or some other component?</span> <br clear="none"><br clear="none"><span style="FONT-SIZE:10pt;FONT-FAMILY:sans-serif;">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> <br clear="none"><br clear="none"><span style="FONT-SIZE:10pt;FONT-FAMILY:sans-serif;">BTW, I'm assuming it was doing this, before you did all these mods, right? </span><br clear="none"><br clear="none"><span style="FONT-SIZE:10pt;FONT-FAMILY:sans-serif;">Anyway, that is a stumper.</span> <br clear="none"><br clear="none"><span style="FONT-SIZE:10pt;FONT-FAMILY:sans-serif;">Moose</span> <br clear="none"><br clear="none"><br clear="none"><br clear="none"><span style="FONT-SIZE:9pt;FONT-FAMILY:sans-serif;COLOR:#5f5f5f;">From: </span><span style="FONT-SIZE:9pt;FONT-FAMILY:sans-serif;">"john niolon" <<a shape="rect" href="mailto:jniolon@att.net" rel="nofollow" target="_blank">jniolon@att.net</a>></span> <br clear="none"><span style="FONT-SIZE:9pt;FONT-FAMILY:sans-serif;COLOR:#5f5f5f;">To: </span><span style="FONT-SIZE:9pt;FONT-FAMILY:sans-serif;">"shop-talk" <<a shape="rect" href="mailto:shop-talk@autox.team.net" rel="nofollow" target="_blank">shop-talk@autox.team.net</a>></span> <br clear="none"><span style="FONT-SIZE:9pt;FONT-FAMILY:sans-serif;COLOR:#5f5f5f;">Date: </span><span style="FONT-SIZE:9pt;FONT-FAMILY:sans-serif;">05/19/2026 13:16</span> <br clear="none"><span style="FONT-SIZE:9pt;FONT-FAMILY:sans-serif;COLOR:#5f5f5f;">Subject: </span><span style="FONT-SIZE:9pt;FONT-FAMILY:sans-serif;">[Shop-talk] strange automotive electrical problem</span> <br clear="none"><span style="FONT-SIZE:9pt;FONT-FAMILY:sans-serif;COLOR:#5f5f5f;">Sent by: </span><span style="FONT-SIZE:9pt;FONT-FAMILY:sans-serif;">"Shop-talk" <<a shape="rect" href="mailto:shop-talk-bounces@autox.team.net" rel="nofollow" target="_blank">shop-talk-bounces@autox.team.net</a>></span> <br clear="none">
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<p style="MARGIN-BOTTOM:0px;MARGIN-TOP:0px;"><span style="FONT-SIZE:12pt;FONT-FAMILY:Calibri;">Strange automotive electrical problem we need help with…</span></p>
<p style="MARGIN-BOTTOM:0px;MARGIN-TOP: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-BOTTOM:0px;MARGIN-TOP:0px;"><span style="FONT-SIZE:12pt;FONT-FAMILY:Calibri;">Dakota digital dash system including neutral safety switch and</span></p>
<p style="MARGIN-BOTTOM:0px;MARGIN-TOP:0px;"><span style="FONT-SIZE:12pt;FONT-FAMILY:Calibri;">Transmission gear indicator</span></p>
<p style="MARGIN-BOTTOM:0px;MARGIN-TOP:0px;"><span style="FONT-SIZE:12pt;FONT-FAMILY:Calibri;"></span> </p>
<p style="MARGIN-BOTTOM:0px;MARGIN-TOP: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-BOTTOM:0px;MARGIN-TOP:0px;"><span style="FONT-SIZE:12pt;FONT-FAMILY:Calibri;"></span> </p>
<p style="MARGIN-BOTTOM:0px;MARGIN-TOP: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-BOTTOM:0px;MARGIN-TOP: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-BOTTOM:0px;MARGIN-TOP: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-BOTTOM:0px;MARGIN-TOP: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-BOTTOM:0px;MARGIN-TOP: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-BOTTOM:0px;MARGIN-TOP:0px;"><span style="FONT-SIZE:12pt;FONT-FAMILY:Calibri;"></span> </p>
<p style="MARGIN-BOTTOM:0px;MARGIN-TOP: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-BOTTOM:0px;MARGIN-TOP: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-BOTTOM:0px;MARGIN-TOP:0px;"><span style="FONT-SIZE:12pt;FONT-FAMILY:Calibri;"></span> </p>
<p style="MARGIN-BOTTOM:0px;MARGIN-TOP: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-BOTTOM:0px;MARGIN-TOP: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-BOTTOM:0px;MARGIN-TOP:0px;"><span style="FONT-SIZE:12pt;FONT-FAMILY:Calibri;">connectors and clean, bare metal attachment points</span></p>
<p style="MARGIN-BOTTOM:0px;MARGIN-TOP: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-BOTTOM:0px;MARGIN-TOP: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-BOTTOM:0px;MARGIN-TOP: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-BOTTOM:0px;MARGIN-TOP: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-BOTTOM:0px;MARGIN-TOP:0px;"><span style="FONT-SIZE:12pt;FONT-FAMILY:Calibri;">Switches and relays. Professionally done.</span></p>
<p style="MARGIN-BOTTOM:0px;MARGIN-TOP: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-BOTTOM:0px;MARGIN-TOP:0px;"><span style="FONT-SIZE:12pt;FONT-FAMILY:Calibri;"></span> </p>
<p style="MARGIN-BOTTOM:0px;MARGIN-TOP:0px;"><span style="FONT-SIZE:12pt;FONT-FAMILY:Calibri;">Ideas, suggestions, calculated wild a** guesses welcomed… </span></p>
<p style="MARGIN-BOTTOM:0px;MARGIN-TOP:0px;"><span style="FONT-SIZE:12pt;FONT-FAMILY:Calibri;">thanks</span></p>
<p style="MARGIN-BOTTOM:0px;MARGIN-TOP:0px;"><span style="FONT-SIZE:12pt;"></span> </p>
<p style="MARGIN-BOTTOM:0px;MARGIN-TOP:0px;"><span style="FONT-SIZE:12pt;FONT-FAMILY:Calibri;">john</span></p>
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