Thump after start

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Jul 13, 2007 | 04:41 PM

JBOB

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From: Texas

Thump after start

I have about 1500 miles on my 6.7L and recently I started hearing a thump right after start up, which sounded like it was coming from somewhere under the truck. Anybody have any ideas? Thanks.

Jul 13, 2007 | 04:48 PM

dodgezilla04

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From: kingston,wa

is the ac on? when my ac compressor clutch kicks in, there's a slight thump

Jul 13, 2007 | 08:07 PM

JBOB

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From: Texas

AC is not on. Also, it may be my hearing, but it sounds like it comes from under the truck towards the rear.

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