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Thanks for all the helpful suggestions, guys. Looks like I have
some debugging to do.<br>
<br>
<div class="moz-cite-prefix">On 9/17/2026 3:41 PM, William Atterbury
via Healeys wrote:<br>
</div>
<blockquote type="cite"
cite="mid:1793235664.961461.1789684886908@mail.yahoo.com">
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<div dir="ltr" data-setdir="false"><span
style="font-size: 13px;">Hey Bob,</span></div>
<div dir="ltr" data-setdir="false"><span
style="font-size: 13px;">Doesn't sound like the pump - 400
psi is good, but this can be removed/resealed in situ.</span></div>
<div dir="ltr" data-setdir="false"><span
style="font-size: 13px;">Your clue would be that it might
engage at high roadspeed but not at low.</span></div>
<div dir="ltr" data-setdir="false"><span
style="font-size: 13px;"><br>
</span></div>
<div dir="ltr" data-setdir="false"><span
style="font-size: 13px;">I had a solenoid that was 'weak'
and behaved like yours. It functioned, but resistance was
high and pull force was low.</span></div>
<div dir="ltr" data-setdir="false"><span
style="font-size: 13px;">It might throw but have marginal
force to open the ball valve when under pressure.</span></div>
<div dir="ltr" data-setdir="false"><span
style="font-size: 13px;"><br>
</span></div>
<div dir="ltr" data-setdir="false"><span
style="font-size: 13px;">Best way to isolate this is to
check resistance or current of the solenoid.</span></div>
<div dir="ltr" data-setdir="false"><span
style="font-size: 13px;"><br>
</span></div>
<div dir="ltr" data-setdir="false"><span
style="font-size: 13px;">Good Luck!</span></div>
<div dir="ltr" data-setdir="false">
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<div dir="ltr">------------------------------<br>
</div>
<div dir="ltr"><span style="font-size: 13px;">Date: Thu,
17 Sep 2026 09:13:35 -0700</span></div>
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class="ydpe4981f03yahoo_quoted">
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style="font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;font-size:13px;">
<div>
<div dir="ltr">From: Bob Spidell <<a
href="mailto:bspidell@comcast.net" rel="nofollow"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">bspidell@comcast.net</a>><br>
</div>
<div dir="ltr">To: Healeys <<a
href="mailto:healeys@autox.team.net" rel="nofollow"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">healeys@autox.team.net</a>><br>
</div>
<div dir="ltr">Subject: [Healeys] Seeking List Wisdom<br>
</div>
<div dir="ltr">Message-ID: <<a
href="mailto:a0c0f784-b253-4e6a-aea9-e24752184cc3@comcast.net"
rel="nofollow" target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">a0c0f784-b253-4e6a-aea9-e24752184cc3@comcast.net</a>><br>
</div>
<div dir="ltr">Content-Type: text/plain; charset=UTF-8;
format=flowed<br>
</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">I've had an intermittent issue with my BJ8
O/D. It doesn't engage <br>
</div>
<div dir="ltr">reliably, but does maybe 1 out of 10
attempts. I think I've ruled out <br>
</div>
<div dir="ltr">electrical issues, as the solenoid
activates reliably. I checked the <br>
</div>
<div dir="ltr">hydraulic pressure, it's just under 400
PSI. I know that's low per the <br>
</div>
<div dir="ltr">shop manual (470-490), but it has worked
reliably for years and had the <br>
</div>
<div dir="ltr">same pressure after an overhaul.<br>
</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">Q1: Any ideas why it has stopped engaging
after years and thousands of <br>
</div>
<div dir="ltr">miles?<br>
</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">Q2: If it's the pump, can these be changed
out in situ?<br>
</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">TIA,<br>
</div>
<div dir="ltr">Bob<br>
</div>
<div dir="ltr"><br>
</div>
</div>
</div>
</div>
</div>
<br>
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