Hi guys.....

My 2006 CTD I have noticed upon cold start up the voltage meter drops under 14 and then goes back up to 15 or more for the first 3 minutes or so. When it does this the lights dim a bit and the heater motor speeds down and speeds up. Obviously there is something cycling on and off drawing alot of power. Happens a good 10 times or so before the volt meter rests in normal position. What is it and is it normal? Anyone know? I hope its not a sign of an alternator going south or something....When I mean cold weather Im talking below 20 degrees....

Thanks

 

it's your grid heaters cycling!

nothing to worry about

 

What he said.

 

all is fine. happens @ 49 and below. that is what the dealer told me the outside temp had to be to set off the heaters, and seems to be true.

 

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Cool....Thanks Guys! Feel much better now. My truck just turned 9k and Im loving it...Its so darned quiet compared to the Ford I traded in and pulls so much better. I have another question but will start another thread...
Thanks

Scott