Vibration arround 65 MPH - LS1LT1 Forum : LT1, LS1, Camaro, Firebird, Trans Am, Engine Tech Forums
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post #1 of 3 (permalink) Old 02-15-2014, 08:02 AM Thread Starter
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Vibration arround 65 MPH

Hey Guys

Before I forget this again: I noticed that a couple times, in the last days again, when I testdrive after work. I got on the Highway/Interstate and hit 65 and have alot of Vibration in my car. The seats are shakin, I mean you can realy feel that. Is that a Firebird problem, cause I read something about that or is something else going on there??

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post #2 of 3 (permalink) Old 03-17-2014, 04:59 AM
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Check the motor and transmission mounts over time the rubber can become hardened or cracked. While your under the car check the exhaust hangers also. Do you feel the vibration in the steering wheel also or just in the seat?
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post #3 of 3 (permalink) Old 03-17-2014, 08:57 AM
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Could be a number of things. Wheels out of balance, bad bearings, loose tie-rod ends or ball joints, control arm bushings. Jack up the front and wiggle the wheels around and check for play. Also, get an alignment and balance. Are your tires worn down unevenly?

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