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How old are your plug wires? Any chance a few worn out wires be the origin?=
Alan Wasserman
Alanwassermannc@gmail.com
732-887-0742
www.wassermanstudio.com
> On Sep 28, 2022, at 6:24 PM, Michael Salter <michaelsalter@gmail.com> wrot=
e:
>=20
> =EF=BB=BF
> This problem has plagued me for over 1000 miles.
>=20
> Today I had to drive some 200 miles and this is how it went:
>=20
> Starting from cold I experienced a persistent and irregular misfire.
>=20
> Pulling the choke out made no perceivable difference.
>=20
> Power was not much affected and the car cruised along well in top overdriv=
e with just regular periods of misfiring.
>=20
> Climbing slopes really made no difference, even when full throttle was app=
lied for 10 - 15 seconds.
>=20
> Misfire continued for some 90 miles with no change when the engine was ful=
ly heated up.
>=20
> I could really do nothing to influence the rate of the misfire although it=
did seem to be slightly less evident at low throttle settings.
>=20
> After 90 miles I stopped briefly to get fuel and upon starting off it was q=
uite evident that the misfire had disappeared almost completely and remained=
that way for at least 80 miles after which it started to misfire just a lit=
tle as I came to the end of the trip.
>=20
> POSSIBLE CAUSES
>=20
> 1. Plugs =E2=80=A6 not like a bad plug. The misfire seems to be more t=
han 1 cylinder and never came close to being the regular beat that 1 plug mi=
sfiring produces. All the plugs have a healthy brown/ grey appearance.
> 2. Coil =E2=80=A6 In my experience coils are very reliable but when t=
hey do fail they tend to fail as they warm up and the problem gets worse as t=
he coil warms up
> 3. Points =E2=80=A6 a possibility but the dwell is set at exactly 60 d=
egrees and does not waver at all when the engine is running in the shop.
> 4. Fuel pump =E2=80=A6 if the engine was starving for fuel because of=
a fuel supply issue caused by a blockage or failing pump the problem would g=
et worse when the demand for fuel increased, as in climbing a hill of full t=
hrottle. This was absolutely not the case.
>=20
>=20
>=20
> Any ideas folks?
>=20
>=20
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto">How old are your plug wires? Any chan=
ce a few worn out wires be the origin?<br><br><div dir=3D"ltr">Alan Wasserma=
n<div>Alanwassermannc@gmail.com</div><div>732-887-0742</div><div>www.wasserm=
anstudio.com</div></div><div dir=3D"ltr"><br><blockquote type=3D"cite">On Se=
p 28, 2022, at 6:24 PM, Michael Salter <michaelsalter@gmail.com> wrote=
:<br><br></blockquote></div><blockquote type=3D"cite"><div dir=3D"ltr">=EF=BB=
=BF<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:arial,=
sans-serif;font-size:small">
<p class=3D"MsoNormal" style=3D"text-align:center;margin:0in 0in 8pt;line-he=
ight:107%;font-size:11pt;font-family:"Calibri",sans-serif" align=3D=
"center"><b><span style=3D"font-size:18pt;line-height:107%"><span></span></s=
pan></b></p>
<p class=3D"MsoNormal" style=3D"margin:0in 0in 8pt;line-height:107%;font-siz=
e:11pt;font-family:"Calibri",sans-serif">This problem has plagued m=
e for over 1000 miles.<span></span></p>
<p class=3D"MsoNormal" style=3D"margin:0in 0in 8pt;line-height:107%;font-siz=
e:11pt;font-family:"Calibri",sans-serif">Today I had to drive some=
200 miles and this is how it went:<span></span></p>
<p class=3D"MsoNormal" style=3D"margin:0in 0in 8pt;line-height:107%;font-siz=
e:11pt;font-family:"Calibri",sans-serif">Starting from cold I expe=
rienced a persistent and irregular misfire.
<span></span></p>
<p class=3D"MsoNormal" style=3D"margin:0in 0in 8pt;line-height:107%;font-siz=
e:11pt;font-family:"Calibri",sans-serif">Pulling the choke out mad=
e no perceivable difference.<span></span></p>
<p class=3D"MsoNormal" style=3D"margin:0in 0in 8pt;line-height:107%;font-siz=
e:11pt;font-family:"Calibri",sans-serif">Power was not much affect=
ed and the car cruised along well
in top overdrive with just regular periods of misfiring.<span></span></p>
<p class=3D"MsoNormal" style=3D"margin:0in 0in 8pt;line-height:107%;font-siz=
e:11pt;font-family:"Calibri",sans-serif">Climbing slopes really ma=
de no difference, even when full
throttle was applied for 10 - 15 seconds.<span></span></p>
<p class=3D"MsoNormal" style=3D"margin:0in 0in 8pt;line-height:107%;font-siz=
e:11pt;font-family:"Calibri",sans-serif">Misfire continued for som=
e 90 miles with no change when the
engine was fully heated up.<span></span></p>
<p class=3D"MsoNormal" style=3D"margin:0in 0in 8pt;line-height:107%;font-siz=
e:11pt;font-family:"Calibri",sans-serif">I could really do nothing=
to influence the rate of the
misfire although it did seem to be slightly less evident at low throttle
settings.<span></span></p>
<p class=3D"MsoNormal" style=3D"margin:0in 0in 8pt;line-height:107%;font-siz=
e:11pt;font-family:"Calibri",sans-serif">After 90 miles I stopped b=
riefly to get fuel and upon
starting off it was quite evident that the misfire had disappeared almost co=
mpletely
and remained that way for at least 80 miles after which it started to misfir=
e
just a little as I came to the end of the trip.<span></span></p>
<p class=3D"MsoNormal" style=3D"margin:0in 0in 8pt;line-height:107%;font-siz=
e:11pt;font-family:"Calibri",sans-serif"><u><span> </span>POS=
SIBLE CAUSES</u><span></span></p>
<p class=3D"gmail-MsoListParagraphCxSpFirst" style=3D"margin:0in 0in 0in 0.5=
in;line-height:107%;font-size:11pt;font-family:"Calibri",sans-seri=
f"><span><span>1.<span style=3D"font:7pt "Times New Roman""> =
</span></span></span>Plugs =E2=80=A6 not like a bad plug. The misfire seems
to be more than 1 cylinder and never came close to being the regular beat th=
at 1
plug misfiring produces. All the plugs have a healthy brown/ grey appearance=
.<span></span></p>
<p class=3D"gmail-MsoListParagraphCxSpMiddle" style=3D"margin:0in 0in 0in 0.=
5in;line-height:107%;font-size:11pt;font-family:"Calibri",sans-ser=
if"><span><span>2.<span style=3D"font:7pt "Times New Roman""> =
;
</span></span></span>Coil =E2=80=A6<span> </span>In
my experience coils are very reliable but when they do fail they tend to fai=
l
as they warm up and the problem gets worse as the coil warms up<span></span>=
</p>
<p class=3D"gmail-MsoListParagraphCxSpMiddle" style=3D"margin:0in 0in 0in 0.=
5in;line-height:107%;font-size:11pt;font-family:"Calibri",sans-ser=
if"><span><span>3.<span style=3D"font:7pt "Times New Roman""> =
;
</span></span></span>Points =E2=80=A6 a possibility but the dwell is set at
exactly 60 degrees and does not waver at all when the engine is running in t=
he
shop.<span></span></p>
<p class=3D"gmail-MsoListParagraphCxSpLast" style=3D"margin:0in 0in 8pt 0.5i=
n;line-height:107%;font-size:11pt;font-family:"Calibri",sans-serif=
"><span><span>4.<span style=3D"font:7pt "Times New Roman""> &=
nbsp;
</span></span></span>Fuel pump =E2=80=A6 if the engine was starving for fuel=
because of a fuel supply issue caused by a blockage or failing pump the prob=
lem
would get worse when the demand for fuel increased, as in climbing a hill of=
full throttle. This was absolutely not the case.</p><p class=3D"gmail-MsoLis=
tParagraphCxSpLast" style=3D"margin:0in 0in 8pt 0.5in;line-height:107%;font-=
size:11pt;font-family:"Calibri",sans-serif"><br></p><p class=3D"gm=
ail-MsoListParagraphCxSpLast" style=3D"margin:0in 0in 8pt 0.5in;line-height:=
107%;font-size:11pt;font-family:"Calibri",sans-serif">Any ideas fo=
lks?<br></p><p class=3D"gmail-MsoListParagraphCxSpLast" style=3D"margin:0in 0=
in 8pt 0.5in;line-height:107%;font-size:11pt;font-family:"Calibri"=
,sans-serif"><br></p>
</div></div>
</div></blockquote></body></html>=
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