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<html class=3D"apple-mail-supports-explicit-dark-mode"><head><meta http-equi=
v=3D"content-type" content=3D"text/html; charset=3Dutf-8"></head><body dir=3D=
"auto"><div dir=3D"ltr"></div><div dir=3D"ltr">A short would have been my gu=
ess too. Or, is there any engine management device that=E2=80=99s sensitive t=
o voltage and may power off at a stupidly high voltage like 11.5?</div><div d=
ir=3D"ltr"><br></div><div dir=3D"ltr">Jim</div><div dir=3D"ltr"><br><blockqu=
ote type=3D"cite">On May 20, 2026, at 2:18=E2=80=AFAM, Douglas Shook <dir=
tbeard@gmail.com> wrote:<br><br></blockquote></div><blockquote type=3D"ci=
te"><div dir=3D"ltr">=EF=BB=BF<div dir=3D"ltr"><div class=3D"gmail_default" s=
tyle=3D"font-size:small">As you know, intermittent electrical problems a=
re some of the most difficult to track down.</div><div class=3D"gmail_defaul=
t" style=3D"font-size:small"><br></div><div class=3D"gmail_default" style=3D=
"font-size:small">About your only course of action is when it happens, try t=
o monitor/measure all possible factors before you restart. </div><div c=
lass=3D"gmail_default" style=3D"font-size:small"><br></div><div class=3D"gma=
il_default" style=3D"font-size:small">Do any of the gauges or indicator =
;lights indicate any problem when it occurs? Any audible clicks or pops? Doe=
s it only happen when it is hot outside, cold outside, wet outside, etc. Try=
ing to find any common factor for the moment when the failure occurs could h=
elp you start to track it down.</div><div class=3D"gmail_default" style=3D"f=
ont-size:small"><br></div><div class=3D"gmail_default" style=3D"font-size:sm=
all">I know it seems unlikely, but if turning the ignition switch seems to s=
olve the problem, it could be the ignition switch (I have had two ignition s=
witches fail intermittently, so I am attentive to that possibility).</div><d=
iv class=3D"gmail_default" style=3D"font-size:small"><br></div><div class=3D=
"gmail_default" style=3D"font-size:small">You almost have to hope that whate=
ver it is that fails briefly will fail permanently so that you can trac=
k it down.</div><div class=3D"gmail_default" style=3D"font-size:small"><br><=
/div><div class=3D"gmail_default" style=3D"font-size:small">If it always occ=
urred when you hit a bump (electrical connection) or after the engine had be=
en running for an hour or so (overheated component), etc., you could start t=
o track things down, but it seems totally random.</div></div><br><div class=3D=
"gmail_quote gmail_quote_container"><div dir=3D"ltr" class=3D"gmail_attr">On=
Wed, May 20, 2026 at 1:53=E2=80=AFAM john niolon <<a href=3D"mailto:jnio=
lon@att.net">jniolon@att.net</a>> wrote:<br></div><blockquote class=3D"gm=
ail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,2=
04,204);padding-left:1ex">
<div>
<div><font face=3D"Segoe UI">Hey Moose, thanks for the reply. Harness w=
as done by a pro that does it for a living...He is meticulous. He comp=
letely strips everything</font></div>
<div><font face=3D"Segoe UI">from the car then starts from a blank slate... E=
verything new.. Nice looms and grommets at every hole and hides as much of i=
t as he can.</font></div>
<div><font face=3D"Segoe UI"></font> </div>
<div><font face=3D"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 grou=
nd but it's gotta be hidden inside something</font></div>
<div><font face=3D"Segoe UI">that we can't see.</font></div>
<div><font face=3D"Segoe UI"></font> </div>
<div><font face=3D"Segoe UI">Someone on my ford forum suggested putting a vo=
lt meter in the circuit and watch the voltage for a drop...but you're so bus=
y trying to get out of traffic and not</font></div>
<div><font face=3D"Segoe UI">get plowed it's difficult to remember to watch t=
he meter.... and yes this has been going on for over a year...in=
termittently and even after all the changes... it persists</font></div>
<div><font face=3D"Segoe UI"></font> </div>
<div><font face=3D"Segoe UI">john</font></div>
<div> </div>
<blockquote style=3D"padding:0px 0px 0px 0.5em;border-left:1px solid rgb(199=
,229,255);margin:0px 0px 0px 0.5em">
<div style=3D"font-size:12pt;font-family:"Segoe UI";color:rgb(0,0,=
0)"><b>----- Original Message -----</b></div>
<div style=3D"font-size:12pt;font-family:"Segoe UI";color:rgb(0,0,=
0)"><b>From:</b> <<a href=3D"mailto:eric@megageek.com"; target=3D"_blank">=
eric@megageek.com</a>></div>
<div style=3D"font-size:12pt;font-family:"Segoe UI";color:rgb(0,0,=
0)"><b>To:</b> shop-talk <<a href=3D"mailto:shop-talk@autox.team.net"; tar=
get=3D"_blank">shop-talk@autox.team.net</a>></div>
<div style=3D"font-size:12pt;font-family:"Segoe UI";color:rgb(0,0,=
0)"><b>Cc:</b> john niolon <<a href=3D"mailto:jniolon@att.net"; target=3D"=
_blank">jniolon@att.net</a>></div>
<div style=3D"font-size:12pt;font-family:"Segoe UI";color:rgb(0,0,=
0)"><b>Sent:</b> 05/19/2026 4:40:59 PM</div>
<div style=3D"font-size:12pt;font-family:"Segoe UI";color:rgb(0,0,=
0)"><b>Subject:</b> Re: [Shop-talk] strange automotive electrical problem</d=
iv>
<hr style=3D"border-width:medium;border-style:none;border-color:currentcolor=
;height:1px;color:rgb(204,204,204);background-color:rgb(204,204,204)">
<div style=3D"font-size:12pt;font-family:"Segoe UI";font-weight:no=
rmal;color:rgb(0,0,0);font-style:normal"><span style=3D"font-size:10pt;font-=
family:sans-serif">John, I would have bet money it was a hidden wire short s=
omewhere. It had all the Hallmarks. But you stated the wiring harness w=
hat completely replaced. So, that rules that out...</span> <br><br><span sty=
le=3D"font-size:10pt;font-family:sans-serif">Or does it?</span> <br><br><spa=
n style=3D"font-size:10pt;font-family:sans-serif">My question, when you said=
'headlight to taillight', that is complete. BUT was there ANY wire th=
at was in that car that wasn't part of the harness?</span> <br><br><span sty=
le=3D"font-size:10pt;font-family:sans-serif">Something in dash, neutral swit=
ch, tranny indicator, or some other component?</span> <br><br><span style=3D=
"font-size:10pt;font-family:sans-serif">I'm still betting on a wire short, b=
ut I guess it could be a short inside a component. Maybe inside the al=
t or other part?</span> <br><br><span style=3D"font-size:10pt;font-family:sa=
ns-serif">BTW, I'm assuming it was doing this, before you did all these mods=
, right? </span><br><br><span style=3D"font-size:10pt;font-family:sans-serif=
">Anyway, that is a stumper.</span> <br><br><span style=3D"font-size:10pt;fo=
nt-family:sans-serif">Moose</span> <br><br><br><br><span style=3D"font-size:=
9pt;font-family:sans-serif;color:rgb(95,95,95)">From: &=
nbsp;</span><span style=3D"font-size:9pt;font-family:sans-serif">"john niolo=
n" <<a href=3D"mailto:jniolon@att.net"; target=3D"_blank">jniolon@att.net<=
/a>></span> <br><span style=3D"font-size:9pt;font-family:sans-serif;color=
:rgb(95,95,95)">To: </span><span style=3D"font-si=
ze:9pt;font-family:sans-serif">"shop-talk" <<a href=3D"mailto:shop-talk@a=
utox.team.net" target=3D"_blank">shop-talk@autox.team.net</a>></span> <br=
><span style=3D"font-size:9pt;font-family:sans-serif;color:rgb(95,95,95)">Da=
te: </span><span style=3D"font-size:9pt;font-fami=
ly:sans-serif">05/19/2026 13:16</span> <br><span style=3D"font-size:9pt;font=
-family:sans-serif;color:rgb(95,95,95)">Subject: =
</span><span style=3D"font-size:9pt;font-family:sans-serif">[Shop-talk] stra=
nge automotive electrical problem</span> <br><span style=3D"font-size:9pt;fo=
nt-family:sans-serif;color:rgb(95,95,95)">Sent by: &nbs=
p;</span><span style=3D"font-size:9pt;font-family:sans-serif">"Shop-talk" &l=
t;<a href=3D"mailto:shop-talk-bounces@autox.team.net"; target=3D"_blank">shop=
-talk-bounces@autox.team.net</a>></span> <br>
<hr noshade=3D"">
<br><br>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri">Strange automotive electrical problem we need help with=
=E2=80=A6</span></p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri">55 chevy automatic with 383 stroker motor, carbed, p/s,=
p/b,a/c</span></p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri">Dakota digital dash system including neutral safety swi=
tch and</span></p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri">Transmission gear indicator</span></p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri"></span> </p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri">When it is running right, it=E2=80=99s scary strong.&nb=
sp; Cruises nicely.</span></p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri"></span> </p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri">Problem=E2=80=A6 when driving the engine dies like you c=
ut it off=E2=80=A6BUT will start back up</span></p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri">Immediately and run perfectly till the next time it doe=
s it. Might be 15 minutes=E2=80=A615 days or</span></p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"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=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri">Engine temp does not effect it=E2=80=A6 does it h=
ot or cold. With the a/c on or off. It does not have a</span></p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri">Cutoff switch in the system. Longest period with n=
o failure is 7 months=E2=80=A6 shortest was 4 minutes.</span></p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri"></span> </p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri">When it stalls we checked fuel by looking in the bowl o=
f carb and gas is spraying as it should</span></p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri">So we are assuming electrical of some sort. So fa=
r we=E2=80=99ve done the following=E2=80=A6</span></p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri"></span> </p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri">Replaced battery with new red top optima battery and al=
l new battery cables (2 gauge I think)</span></p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri">Replaced all ground cables frame/block=E2=80=A6 frame/c=
hassis with 2/0 welding cable with new crimped</span></p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri">connectors and clean, bare metal attachment points</spa=
n></p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri">replaced ignition switch (twice=E2=80=A6 first with imp=
ort then with oem switch)</span></p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri">replaced coil and distributor with MSD system with spar=
k control box, separate coil and distributor=E2=80=A6</span></p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"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=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri">Replaced complete wiring harness=E2=80=A6headlight to t=
aillight with new Autowire harness=E2=80=A6including all</span></p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri">Switches and relays. Professionally done.</span></p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri">Everything else electrical works without a glitch=E2=80=
=A6 we are at the wall here=E2=80=A6</span></p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri"></span> </p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri">Ideas, suggestions, calculated wild a** guesses welcome=
d=E2=80=A6 </span></p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri">thanks</span></p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt"=
></span> </p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri">john</span></p>
<p style=3D"margin-bottom:0px;margin-top:0px"><span style=3D"font-size:12pt;=
font-family:Calibri"> </span><tt><span style=3D"font-size:10pt">_______=
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