Fan kicks in on cold start

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Dave, I can't do that - 15 Nov 2006 17:07 GMT

Hi people,

1500 2WD auto 5.9L 1995

About 30 seconds after the first cold start of the day the viscous
coupled fan kicks in. Is this normal?

I have been having some cold start problems and had the hood up the
other day when it finally started then I heard the fan kick in.

I listened for it again this morning and sure enough, about 30 seconds
after start up the fan kicks in. It does not do it when warm.

Anyone have any helpful thoughts on the problem??

Thanks in advance.

Dave

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The Reverend Natural Light - 15 Nov 2006 18:46 GMT

I had a '96 Jeep 5.2L that did that, especially in cold weather. My
'02 Dakota 5.9L does but not as loud. There's a definite fan roar for
the first 10 seconds or so on the road. As long as it quiets down
after a minute or two on the road then it's like most belt fan equipped
vehicles I've ever had.

-rev

> Hi people,
>
[quoted text clipped - 14 lines]
>
> Dave

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Big Al - 15 Nov 2006 18:48 GMT

> Hi people,
>
[quoted text clipped - 14 lines]
>
> Dave

Yes, it's normal. My advice is to keep the RPM down till the fan roar quits.
My Dodge it takes about a city block, my Isuzu takes about a mile.

Al

Al

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Dave, I can't do that - 15 Nov 2006 23:31 GMT

Thanks Al and Rev.

It does quiet down fairly quickly.

Dave

> Yes, it's normal. My advice is to keep the RPM down till the fan roar quits.
> My Dodge it takes about a city block, my Isuzu takes about a mile.

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