LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Need Help!!! Car started vibrating today!?

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Old Jun 18, 2007 | 12:09 PM
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ele-blue95's Avatar
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Default Need Help!!! Car started vibrating today!?

The car was fine yesterday and when i got in it this morning it had a vibration that comes in around 2400 to 5600. It feels like it is comming from, or around the tail shaft of the transmission. I was thinking a u-joint but i have a new steel driveshaft with spicer 1350 joints. I have a UMI tunnel Mount TA,and strange S60 rearend. I will try and get a video this afternoon. It just feels like the car is comming apart when i give it gas.
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Old Jun 18, 2007 | 01:58 PM
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I have a feeling it's the pinion angle on the torque arm. It could be too much on the negative/positive side and making a bad vibration. That could be the issue if it's a RPM problem. If it vibrates at high speeds, it could be the driveshaft not balanced.
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Old Jun 18, 2007 | 06:30 PM
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I believe i found the problem! The number 7 plug wire got moved into the LTs when I was cleaning my coil last week. Glad I have a spare set. I will let you guys know if that was it in the morning when the motor has cooled off enough to work on it.
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Old Jun 19, 2007 | 12:08 AM
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It's the chick you've been screwin's vibrator. She hard wired it into the tach wire. Check under the passenger seat.
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Old Jun 19, 2007 | 03:07 AM
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hahahahaha the "check under the passengers seat" made it perfect.
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Old Jun 19, 2007 | 03:31 AM
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make sure you didnt put it on vibrate, if you did switch it back to ringer.
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Old Jun 19, 2007 | 10:34 AM
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HA HA HA!!! Thanks guys! DOUBT IT ill have to get the vibrator back to your women now!LOL!!! It was the #7 plug wire and plug.
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Old Jun 20, 2007 | 02:22 PM
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You'll find out with LT's, that the plug wires like to move around and touch the headers. Keep an eye on them or try a different set up like what Kevin has on his LT1. I'm switching mine to that b/c I already burned a couple of wires with looms on them.
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