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How long for Alt to take over?

714 views 3 replies 3 participants last post by  K.C. 
#1 ·
Just noticed that it is taking a bit for the alternator to take over after start up. Curious how long it should be taking. Seems like not matter, hot or cold, start the truck up, 12ish volts showing on the Edge, then a min or so later pops up to 13.9-14.1. Am crazy and for some reason just noticing this or does it seem wrong? Thanks for any help.
 
#2 ·
Perfectly normal.

It wont kick in until after the glow plugs are completely shut down.

Usually 30-90 seconds
 
#3 ·
My glow plugs runs for 2 minutes. As Dave said completely normal.
 
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