Alternator ?
Hotshot
Joined: Apr 2010
Posts: 19,071
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From: Saratoga Springs,UT
Thats Same Here to
Right when the Truck Starts and Runs I hit 12.7-12.8volts
then it Trickles up into the 13+ volts range
Then GP shutoff and it Jumps 14.0-14.5V or so
Also keep in mind that the Volts reading at the OBDII Port is Less than at the Batterys or Alternator by 0.2-0.4 volts
So you really have more than what the SGII is showing if you have a DVM check it out some time
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Joined: Aug 2001
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At the batteries you could figure on the low end 12.9-13.0 volts or 13.1 to 13.2 volts.
Better than seeing 11.9 volts at the OBD port.
Josh
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You see in Mustang's video he has a normal system amp requirement of around 60 amps at idle, that is why the stock 6G can only muster mid to high 13's for voltage. It's being taxed at idle and cannot handle it.
Josh
Hotshot
Joined: Apr 2010
Posts: 19,071
Likes: 241
From: Saratoga Springs,UT
I usually let the GP go a Touch Longer before I hit the Starter maybe 10-15 seconds longer than GP Light
I tax Battery Longer Just in winter
I tax Battery Longer Just in winter
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Hotshot
Joined: Apr 2010
Posts: 19,071
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From: Saratoga Springs,UT
I added 0.20volts in this number^^Number with SGII OBDII Port
I would have to watch Closer next start
It was at 12.8volts the first 5 Seconds or less and I walked away It always gets better from there so I Didnt Veiw the Volts Gauge this AM on the First Crank today
Fleet Owner
Joined: Apr 2012
Posts: 27,307
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From: Spanaway
I wait to start for the first time till the vac pump has stopped.
That gives the glow plugs a bit more time to heat the surrounding
area and I think it starts easier IMHO.
If you really want to know you can set the Xgauge in your SGII
to show the glow plug time on in seconds.
Sean
That gives the glow plugs a bit more time to heat the surrounding
area and I think it starts easier IMHO.
If you really want to know you can set the Xgauge in your SGII
to show the glow plug time on in seconds.
Sean
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