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6.0 lq4 bad vibration

Generation III Internal Engine 1997-2006 LS1 | LS6

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6.0 lq4 bad vibration

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Old

Jan 15, 2013 | 05:40 PM

#1

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Teching In

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From: warrenville, Il

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6.0 lq4 bad vibration

hi, im new to this forum and new to these engines, but not new to cars...

my issue is that i have a 6.0 lq4 out of a 2004 silverado 2500hd and it has terrible vibrations around 1500 rpms, and 2500 rpms. It does this in neutral, park and while driving. i've checked my motor mounts and transmission crossmember mounts and they are all good and have under 2000 miles on them.

any thoughts?

thanks in advance,
Erik

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Jan 15, 2013 | 06:03 PM

#2

Launching!

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From: CT

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are you driving when the vibration occurs?

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Jan 15, 2013 | 06:04 PM

#3

Launching!

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From: CT

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opps sorry missed that part have you checked the back of the balancer to see if the rubber is broken or missing?

Old

Jan 15, 2013 | 06:20 PM

#4

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Teching In

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From: warrenville, Il

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never mind i figured it out... somehow my bellhousing bolts had loosened a little bit o.O

Old

Jan 15, 2013 | 06:28 PM

#5

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Teching In

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From: warrenville, Il

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thanks for your help though, ive never had trans bolts come loose in my life...

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