Electrical 'pulsing' at startup.

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Giskard Reventlov - 26 Nov 2006 19:13 GMT

Hello Everyone,

I've got an '06 Dodge Ram w/ Cummins engine.

When I start my truck and run it for the first few miles, the headlights
seem to dim a bit, then go back to bright, and dim slightly, then bright,
etc.

Has anyone had any experience with this? Thanks.

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Roy - 26 Nov 2006 19:54 GMT

> Hello Everyone,
>
[quoted text clipped - 5 lines]
>
> Has anyone had any experience with this? Thanks.

It is the heat grid that comes on during initial startup if cold..

Roy

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Tom Lawrence - 26 Nov 2006 20:18 GMT

> When I start my truck and run it for the first few miles, the headlights
> seem to dim a bit, then go back to bright, and dim slightly, then bright,
> etc.
>
> Has anyone had any experience with this? Thanks.

Everyone who drives a Cummins in sub-60°F weather. As Roy said, it's the
intake grid heaters cycling (they draw around 100 amps or so), and it's
perfectly normal. Nothing to worry about.

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Mike Simmons - 26 Nov 2006 21:44 GMT

> Hello Everyone,
>
[quoted text clipped - 5 lines]
>
> Has anyone had any experience with this? Thanks.

Naughty... naughty... you didn't read your owner's manual now did you?

Mike

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Giskard Reventlov - 27 Nov 2006 01:28 GMT

>> Hello Everyone,
>>
[quoted text clipped - 9 lines]
>
> Mike

Thanks to everyone for their replies.

And Mike... Guilty as charged. :-|

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