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<DIV id=post_message_20009636 class=nolinks style='BOX-SIZING: border-box; FONT-SIZE: 13px; FONT-FAMILY: Verdana, geneva, lucida, "lucida grande", arial, helvetica, sans-serif; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(34,34,34); PADDING-BOTTOM: 0px; FONT-STYLE: normal; PADDING-TOP: 0px; PADDING-LEFT: 0px; ORPHANS: 2; WIDOWS: 2; MARGIN: 0px; LETTER-SPACING: normal; PADDING-RIGHT: 0px; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial'>sorry for slow response... helping daughter and sil move...priorities!!!</DIV>
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<DIV class=nolinks style='BOX-SIZING: border-box; FONT-SIZE: 13px; FONT-FAMILY: Verdana, geneva, lucida, "lucida grande", arial, helvetica, sans-serif; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(34,34,34); PADDING-BOTTOM: 0px; FONT-STYLE: normal; PADDING-TOP: 0px; PADDING-LEFT: 0px; ORPHANS: 2; WIDOWS: 2; MARGIN: 0px; LETTER-SPACING: normal; PADDING-RIGHT: 0px; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial'>Monday a.m. report<BR style="BOX-SIZING: border-box"><BR style="BOX-SIZING: border-box">fresh charge on battery 40 amp for 30 minutes on saturday trickle charger since then .. battery voltage 13.4 this a.m. checked with two different meters<BR style="BOX-SIZING: border-box"><BR style="BOX-SIZING: border-box"><BR style="BOX-SIZING: border-box">hooked up H.F. 500 amp load tester, voltage reading same as VOM at 13.4<BR style="BOX-SIZING: border-box">voltage at frame rail terminal also 13.4<BR style="BOX-SIZING: border-box"><BR style="BOX-SIZING: border-box">battery has 800 CCA capacity<BR style="BOX-SIZING: border-box">started test... over 15 second test the battery slowly dropped to 320 amps and voltage read 10.8 (still in the green scale)<BR style="BOX-SIZING: border-box">stopped test at 15 seconds and two minutes later battery was back up to 12.7<BR style="BOX-SIZING: border-box"><BR style="BOX-SIZING: border-box"><BR style="BOX-SIZING: border-box"><PICTURE id=inline1 style="BOX-SIZING: border-box; MAX-WIDTH: 100%; DISPLAY: inline-block" rel="Photoswipe"><SOURCE style="BOX-SIZING: border-box" data-srcset="" srcset="https://cimg8.ibsrv.net/gimg/www.ford-trucks.com-vbulletin/360x270/voltsa_1305c5989a3f57a2ffce9e2b49c805e0eed9be69.jpg" media="(max-width: 580px)"><SOURCE style="BOX-SIZING: border-box" data-srcset="" srcset="https://cimg8.ibsrv.net/gimg/www.ford-trucks.com-vbulletin/360x270/voltsa_1305c5989a3f57a2ffce9e2b49c805e0eed9be69.jpg" media="(max-width: 1000px)"><SOURCE style="BOX-SIZING: border-box" data-srcset="" srcset="https://cimg8.ibsrv.net/gimg/www.ford-trucks.com-vbulletin/360x270/voltsa_1305c5989a3f57a2ffce9e2b49c805e0eed9be69.jpg"><IMG class=post_inline_image style="BORDER-TOP-STYLE: none; BOX-SIZING: border-box; MAX-WIDTH: 100%; BORDER-LEFT-STYLE: none; HEIGHT: auto; VERTICAL-ALIGN: middle; BORDER-BOTTOM-STYLE: none; BORDER-RIGHT-STYLE: none; DISPLAY: inline-block" alt="" src="https://cimg8.ibsrv.net/gimg/www.ford-trucks.com-vbulletin/360x270/voltsa_1305c5989a3f57a2ffce9e2b49c805e0eed9be69.jpg" loading="lazy" data-src="" data-size="360x270"></PICTURE><BR style="BOX-SIZING: border-box"><PICTURE id=inline2 style="BOX-SIZING: border-box; MAX-WIDTH: 100%; DISPLAY: inline-block" rel="Photoswipe"><SOURCE style="BOX-SIZING: border-box" data-srcset="" srcset="https://cimg3.ibsrv.net/gimg/www.ford-trucks.com-vbulletin/360x270/amps1_d85e8a6155a607aae42c4fe2bbfde35778478032.jpg" media="(max-width: 580px)"><SOURCE style="BOX-SIZING: border-box" data-srcset="" srcset="https://cimg3.ibsrv.net/gimg/www.ford-trucks.com-vbulletin/360x270/amps1_d85e8a6155a607aae42c4fe2bbfde35778478032.jpg" media="(max-width: 1000px)"><SOURCE style="BOX-SIZING: border-box" data-srcset="" srcset="https://cimg3.ibsrv.net/gimg/www.ford-trucks.com-vbulletin/360x270/amps1_d85e8a6155a607aae42c4fe2bbfde35778478032.jpg"><IMG class=post_inline_image style="BORDER-TOP-STYLE: none; BOX-SIZING: border-box; MAX-WIDTH: 100%; BORDER-LEFT-STYLE: none; HEIGHT: auto; VERTICAL-ALIGN: middle; BORDER-BOTTOM-STYLE: none; BORDER-RIGHT-STYLE: none; DISPLAY: inline-block" alt="" src="https://cimg3.ibsrv.net/gimg/www.ford-trucks.com-vbulletin/360x270/amps1_d85e8a6155a607aae42c4fe2bbfde35778478032.jpg" loading="lazy" data-src="" data-size="360x270"></PICTURE><BR style="BOX-SIZING: border-box"><BR style="BOX-SIZING: border-box">next step will be check alternator output at battery and terminal point<BR style="BOX-SIZING: border-box"><BR style="BOX-SIZING: border-box">ok... started truck... engine at 1200 rpm<BR style="BOX-SIZING: border-box">meter on alternator o/p- voltage is 14.6<BR style="BOX-SIZING: border-box">meter on battery voltage is 13.5<BR style="BOX-SIZING: border-box"><BR style="BOX-SIZING: border-box">hmmm...1.1 volt drop in 4' of 1/0 cable....that don't sound right<BR style="BOX-SIZING: border-box">need to measure resistance of cable I guess...<BR style="BOX-SIZING: border-box"><BR style="BOX-SIZING: border-box">as an aside... checked voltaged between frame ground and the case of the alternator... 0.0001 volts<BR style="BOX-SIZING: border-box"><BR style="BOX-SIZING: border-box">I also took battery back to Wal mart and Quintella checked it... battery is good based on her years of</DIV>
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<DIV><B>----- Original Message -----</B></DIV>
<DIV><B>From:</B> john niolon <<A>jniolon@att.net</A>></DIV>
<DIV><B>To:</B> shop-talk <<A>shop-talk@autox.team.net</A>></DIV>
<DIV><B>Sent:</B> 8/6/2021 8:58:12 AM</DIV>
<DIV><B>Subject:</B> [Shop-talk] electrical problem with truck</DIV>
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<DIV>jeff…. regular led acid battery ?? <FONT color=#ff0000>Everstart Maxx27 800 CCA regular Walmart battery</FONT></DIV>
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<DIV>When it died, did any of the electrical items still work? Lights, etc.? <FONT color=#ff0000>when it first occurred ,, when I tried to restart, .. starter just clicked and I remember the a/c fan still blowing</FONT></DIV>
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<DIV><FONT color=#000000>Donald... How large is the cable from the alternator to the battery? </FONT><FONT color=#ff0000>feed from battery to alternator is #4 wire<BR></FONT></DIV>
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<DIV><FONT color=#ff0000><FONT color=#000000>Dave... I was thinking a dirty battery clamp.</FONT> battery clamps are new this year and clean, no corrosion on connections</FONT></DIV>
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<DIV><FONT color=#ff0000><FONT color=#000000>John... How is the volt meter in your truck grounded, to the frame or to the motor?</FONT> voltmeter in dash is grounded to dash frame voltmeter used to check under hood is grounded to frame not engine. I'll go back and check ground connections. Alternator has a ground terminal of it's own... it's #10 wire grounded to the frame and of course the alternator is grounded through it's mount.</FONT></DIV>
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<DIV><FONT color=#000000>Pat... what is the relationship between the frame terminal & the rest of the electrical system? </FONT>Terminal on the frame rail is fed by a 4' piece of #4 wire from the i/p solenoid lug where the cable from the battery is connected to the solenoid.</DIV>
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<DIV><FONT color=#000000>Jimmie.. What's the voltage at the terminal with those accessories 'on' but the engine 'off'</FONT> hmmm ?? don't remember checking that, … I'll do that</DIV>
<DIV> <FONT color=#000000>How big is the alternator?</FONT> 100 amp single wire from CVF racing</DIV>
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<DIV><FONT color=#000000>ya'll have given me lots to check and recheck and some I haven't thought of... going back through my diagnostics and check connections too. I bought a 500 amp load tester yesterday and will put sufficient load on the battery. Battery is under the cab and I have to lower it to check it out and with the low truck, I have to raise truck on jackstands.. silly me, I thought battery would be a low maintenance item ...duh. so checking at a shop somewhere is a very large pain.</FONT></DIV>
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<DIV><FONT color=#000000>points I'm considering.... larger ground wires from frame to engine.... alternator to frame and check resistance from solenoid lug to the terminal on the frame... the saga continues</FONT></DIV>
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<DIV><FONT color=#000000>thanks for all the replies and points to check... you guys are the best</FONT></DIV>
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<DIV><FONT color=#000000>john</FONT></DIV>
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