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Knock knock

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Old 10-13-2015, 06:54 PM
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Default Knock knock

So just picked up this 1994 Silverado for 900 bucks. Seems to run a little rich but that's not what I'm worried about. When accelerating past about 3500 rpms there is a slight knocking then when the trans shifts the noise stops. Wonder what the problem is.... Thanks in advance
Old 10-13-2015, 07:15 PM
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Could be as simple as trans mount.

Decant looking truck for 900 bones though.
Old 10-13-2015, 07:29 PM
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Not bad for 900 yeah
Old 10-13-2015, 07:49 PM
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Looks like a Sierra to me.

But I might be crazy.
Old 10-13-2015, 11:29 PM
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Cracked flywheel or a rod.
Old 10-13-2015, 11:30 PM
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Originally Posted by FFDP
Looks like a Sierra to me.

But I might be crazy.
Same **** right? And yeah your crazy
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