When it died, did any of the electrical items still work? Lights, etc.?
My suspicion based on reading this at 5:00 AM is an intermittent short
in the battery itself. Regular lead-acid battery?
Jeff Scarbrough
Corrosion Acres, Ga.
On Fri, Aug 6, 2021 at 12:07 AM john niolon <jniolon@att.net> wrote:
>
> Took the truck (53 ford f-100) out for a drive yesterdayâ?¦first time since
> the Grand Nationals (Iâ??ve been busy) Ran great for about 30 minutes with a
> couple of stops during the rideâ?¦ each time it started right and showed no
> problems. Electric fan and a/c running the whole time As I pulled out of one
> business and headed home the truck stumbled and died..almost like it was out
> of gasâ?¦ ( had over a half a tank) I pulled into a business and tried to
> start it and all I got was a â??clickâ??. Dash Volt meter read about 11 volts
> with switch on and dropped to zero when hitting the starter. Waited about 10
> minutes and it started right upâ?¦ got it home, shut it off and same thing
> â??clickâ??.
>
> Battery has been on a battery tender full time since May and showed 13.7
> volts on VOM connected to the battery before the ride.
>
> Battery is 2 years old Everstart Maxx27 800 CCA â?¦
>
> Davis DUI ignition (which could have quit when battery voltage got low)
>
> All cables are new with 1/0 welding cable for starting circuit and battery
> ground to frame
> engine to frame, frame to cab and frame to bed are all #4 wire to bare metal
> connection points with dialectic grease.
>
> At first glance...when running, the volt meter on dash shows over 13 volts
> so I think alternator is good
>
> did a load test with a H.F. (100 amp) load tester showed battery dropping to
> 10 volts during 10 second load... recovered to 12.
>
> Put truck up on stands and dropped battery (under cab) checked all cables
> and connections from battery to starter including solenoid and ground
> connections.
> all tight, no corrosion on terminals and cells full. this truck finished
> last year and everything is new. Starter solenoid is a Cole-Hersee 200 amp
> continuous draw solenoid.
>
> Starter is new last year and 6-7 inches away and below headers so heat soak
> isn't causing the problem
>
> Set it back down and charged it for 30 minutes at 10 amps... battery showed
> 12.9 volts.. started ok and put meter on alternator
> terminals... alternator putting out 14.5 - 14.8 volts... varies a little
> with engine speed.... so alternator is good I think.
>
> I did a load test again.,.. idle voltage reading 12.9 volts on two different
> fluke meters... and during the load test it dropped to 12.3 then recovered to
> 12.7...so I'm assuming the battery is good, it was just low before the first
> load test.
>
> here's an odd thing.. I have a 12 volt terminal on the right frame rail that
> powers the elec radiator fan, tilt hood motors and trinary switch
>
> with the a/c on, headlights on and elec radiator fan running (as much load as
> I can put on it)... the alternator o/p at 14.5 volts, the voltage at the
> terminal on rail reads 11.5 volts. The terminal is 4' from battery and fed
> with #4 stranded wire.
>
> that's about all the detail I can give you... any ideas why it stalled and
> quit..??? and why the terminal point only reads 11.5 versus the 14.5 at the
> alternator.
>
> I'm at the wall
>
> thanks
> john
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