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Jim
Dodge Dakota
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11/07/2003
23:59:14

Subject: Knock
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I have a 93 Dakota with the 3.9 Magnum V6. The timing chain was just replaced at 173,000 miles. The engine when I first start it sometimes has a slight knock to it until it warms up. I am wondering if it possible needs a bearing job. It has done this since I got the truck with 148,000 on it. Is this normal for the 3.9?



J and J Auto
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11/08/2003
20:47:49

RE: Knock
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How is your oil presure
Idle?
while crusing?

Even with a new chain if you don't also install
the tensioner they develope the chain knock
rattle what ever you want to call it after
10 15,000 miles.

I bought 3 new daks in the last 9 years and all
had that prob, normal for these motors.



Larry
J&J Auto

Jim
Dodge Dakota
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11/09/2003
00:07:26

RE: Knock
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I got the whole mopar kit tensioner and all from Benoy Motors. The oil pressure runs in the middle at idle good, at cruising it is slightly past middle.



J and J Auto
GenII
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11/09/2003
12:01:19

RE: Knock
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Your oil presure is fine I would say no it does
not need crank bearings.

Could be a lifter noise or a slight piston slap
with that many miles.

I would not be to concerned with the noise if as
you say it goes away as soon as it warms up a
little.

Drive that babe another 100,000 and then you can
tell us about it.

Larry
J&J Auto

Jim
Dodge Dakota
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11/10/2003
00:55:03

RE: Knock
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Yeah I hope I can



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