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07-24-2008, 06:23 PM #1Work..Eat..Sleep..Repeat
- Join Date
- Apr 2008
- Location
- Bethalto, IL
- Age
- 45
- Posts
- 131
Sunset Orange Metallic- 2002 Z28
Violent Trany Shake in 3rd Gear on A4
First of all, the trany has been modified. I don't know if it is internally modified or if the Line Pressures were tuned through the PCM, but it has one hell of a firm shift from 1-2 and a descent shift from 2-3.
Question is... When driving around in 1st everything is smooth. 2nd, smooth. 3rd, the whole damn car starts to shake violently. Shifts into OD, smooth.
Any Ideas? Car has 60,000 on it.Nut
2002 Z28
Track History
5-10-08 13.522 @ 106.59 72 degrees ~ Stock? No Mods? (this is how I bought it)
6-14-08 13.577 @ 106.71 93 degrees ~ SLP Lid, Smooth Bellow, and Magnaflow Catback Exhaust
Next Race: I'm done for this season...be back next year!
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07-24-2008, 07:27 PM #2Just me
- Join Date
- Nov 2006
- Location
- Broken Arrow, OK
- Age
- 49
- Posts
- 23,345
Pewter metallic- 2000 Camaro SS
Driveshaft out of balance maybe?
CCW SP 500s 18x10 275/35 18x11 295/35
SLP CME with GMMG style catback
Painted manta stripe
Originally Posted by konigandy6
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07-24-2008, 07:29 PM #3Work..Eat..Sleep..Repeat
- Join Date
- Apr 2008
- Location
- Bethalto, IL
- Age
- 45
- Posts
- 131
Sunset Orange Metallic- 2002 Z28
I thought about that, but once it shifts out of 3rd it's ok. I would think if its the driveshaft that it would get worse as speed increases.
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07-25-2008, 01:12 PM #4That guy
- Join Date
- Nov 2007
- Location
- SoDak
- Posts
- 892
White over Red- 1991 Suburban
I had a U joint go out in my driveshaft that caused a mild vibration in 3rd gear only. It was the rear U joint and it had a dead spot in it. It felt like it had a detent.
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07-25-2008, 05:51 PM #5Work..Eat..Sleep..Repeat
- Join Date
- Apr 2008
- Location
- Bethalto, IL
- Age
- 45
- Posts
- 131
Sunset Orange Metallic- 2002 Z28
Weird...Ok, I'll check it out then.
I thought if it were anything past the trany that it would do it all the time.
Thanks for the info.
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