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<DIV><FONT face="Segoe UI">yes Al... it shuts down like you turned off the ignition... now a starving type dying</FONT></DIV>
<DIV><FONT face="Segoe UI"></FONT> </DIV>
<DIV><FONT face="Segoe UI">as for moving the shift lever to neutral... that is the first thing done to keep momentum to get it off the road... As far as going into park... it has never failed while sitting still or parked, it's always when moving.</FONT></DIV>
<DIV><FONT face="Segoe UI"></FONT> </DIV>
<DIV><FONT face="Segoe UI">Jim... this is a custom street rod and other than maybe the spark control box not sensing enough voltage there are no other sensors.</FONT></DIV>
<DIV><FONT face="Segoe UI"></FONT> </DIV>
<DIV><FONT face="Segoe UI">Jeff, both us and the wiring guru have tried to check every connection that might be suspect and found nothing, but we're not ruling out a pin slipping back inside a connector like David suggested...</FONT></DIV>
<DIV><FONT face="Segoe UI">I've had that happen in my truck... it was the devil to find. something to check...</FONT></DIV>
<DIV><FONT face="Segoe UI"></FONT> </DIV>
<DIV><FONT face="Segoe UI">Thanks all for the advice and suggestions guys... I wish the dang thing would just fail completely and stay that way... maybe even make some smoke (just a little) At least we'd have a failure point instead of</FONT></DIV>
<DIV><FONT face="Segoe UI">a gremlin like this.</FONT></DIV>
<DIV><FONT face="Segoe UI"></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> Al Fuller <<A href="mailto:alfuller194@gmail.com">alfuller194@gmail.com</A>></DIV>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: 'Segoe UI'; COLOR: #000000"><B>To:</B> john niolon <<A href="mailto:jniolon@att.net">jniolon@att.net</A>></DIV>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: 'Segoe UI'; COLOR: #000000"><B>Cc:</B> <<A href="mailto:eric@megageek.com">eric@megageek.com</A>>, shop-talk <<A href="mailto:shop-talk@autox.team.net">shop-talk@autox.team.net</A>></DIV>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: 'Segoe UI'; COLOR: #000000"><B>Sent:</B> 05/20/2026 7:39:57 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>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>
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<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>
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<DIV data-smartmail="gmail_signature">________________<BR>Sent from my phone <BR>Best Regards,<BR>Al Fuller</DIV></DIV><BR>
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<DIV class=gmail_attr dir=ltr>On Tue, May 19, 2026, 10:52 PM john niolon <<A href="mailto:jniolon@att.net">jniolon@att.net</A>> wrote:<BR></DIV>
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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>
<DIV> </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 href="mailto:eric@megageek.com" rel=noreferrer target=_blank>eric@megageek.com</A>></DIV>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: 'Segoe UI'; COLOR: #000000"><B>To:</B> shop-talk <<A href="mailto:shop-talk@autox.team.net" rel=noreferrer 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 href="mailto:jniolon@att.net" rel=noreferrer 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><BR><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif">Or does it?</SPAN> <BR><BR><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><BR><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif">Something in dash, neutral switch, tranny indicator, or some other component?</SPAN> <BR><BR><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><BR><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><BR><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif">Anyway, that is a stumper.</SPAN> <BR><BR><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif">Moose</SPAN> <BR><BR><BR><BR><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 href="mailto:jniolon@att.net" rel=noreferrer target=_blank>jniolon@att.net</A>></SPAN> <BR><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 href="mailto:shop-talk@autox.team.net" rel=noreferrer target=_blank>shop-talk@autox.team.net</A>></SPAN> <BR><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><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><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 href="mailto:shop-talk-bounces@autox.team.net" rel=noreferrer target=_blank>shop-talk-bounces@autox.team.net</A>></SPAN> <BR>
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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>
<P style="MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px"><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: Calibri"> </SPAN><TT><SPAN style="FONT-SIZE: 10pt">_______________________________________________<BR><BR><A href="mailto:Shop-talk@autox.team.net" rel=noreferrer target=_blank>Shop-talk@autox.team.net</A><BR>Donate: </SPAN></TT><A href="http://www.team.net/donate.html" rel=noreferrer target=_blank><TT><SPAN style="FONT-SIZE: 10pt">http://www.team.net/donate.html</SPAN></TT></A><TT><SPAN style="FONT-SIZE: 10pt"><BR>Suggested annual donation $12.96<BR>Archive: </SPAN></TT><A href="http://www.team.net/pipermail/shop-talk" rel=noreferrer target=_blank><TT><SPAN style="FONT-SIZE: 10pt">http://www.team.net/pipermail/shop-talk</SPAN></TT></A><TT><SPAN style="FONT-SIZE: 10pt"> </SPAN></TT><A href="http://autox.team.net/archive" rel=noreferrer target=_blank><TT><SPAN style="FONT-SIZE: 10pt">http://autox.team.net/archive</SPAN></TT></A><TT><SPAN style="FONT-SIZE: 10pt"><BR><BR>Unsubscribe/Manage: </SPAN></TT><A href="http://autox.team.net/mailman/options/shop-talk/eric@megageek.com" rel=noreferrer target=_blank><TT><SPAN style="FONT-SIZE: 10pt">http://autox.team.net/mailman/options/shop-talk/eric@megageek.com</SPAN></TT></A><TT><SPAN style="FONT-SIZE: 10pt"><BR><BR></SPAN></TT></P>
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