vibration.........from where????? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**americanmusc1e** · 10-07-2009, 09:58 PM

something is wrong with my 383. It has a BAD vibration starting at 3000rpm and ending at 3500rpm. this has happened before, and it went away on its own.

It vibrates in Park if you rev the motor up to 3000

I checked the torque converter bolts last time it did this (about a month and a half ago) and they were tight

can a vibration be caused by a misfire?????

it revs past 3500 with no vibration but it doesn't seem to run right. (it revs slow, like it's not running right)

I hope I explained this right. If you have any questions please ask.
thanks in advance for the help

10-07-2009, 09:58 PM	#1
americanmusc1e Senior Member Join Date: Jan 2009 Location: Austin, TX Posts: 1,079	vibration.........from where????? something is wrong with my 383. It has a BAD vibration starting at 3000rpm and ending at 3500rpm. this has happened before, and it went away on its own. It vibrates in Park if you rev the motor up to 3000 I checked the torque converter bolts last time it did this (about a month and a half ago) and they were tight can a vibration be caused by a misfire????? it revs past 3500 with no vibration but it doesn't seem to run right. (it revs slow, like it's not running right) I hope I explained this right. If you have any questions please ask. thanks in advance for the help __________________ -- Josh Instagram: @americanmusc1e OLD SKOOL-- 1970 C10. 454/Th400/3.07 posi Build Thread FARM TRUCK----1949 Chevrolet 3800 Power Wagon Hauler Build Thread 1999 4wd OBS Tahoe - daily. DM me if you can't see photos i posted

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