Shaking on acceleration

Handling, suspension, and brake tuning discussions
Post Reply
Hollow
Posts: 38
Joined: Tue Aug 30, 2005 4:56 am

Shaking on acceleration

Post by Hollow »

I have a problem with GT '04, 25kMiles on it. While accelerating there is shaking, not like when wheels are in disbalance, but shaking on all front. When not accelerating, everything is ok. About 1500miles ago the was a little shaking, and mile after mile it becomes bigger and bigger, mostly feels on 5-6-th gears, for last 400miles also on 3-4 gears. Hope, somebody understands, what am I talking about What could it be? At first, I felt it only on 6-th gear, later on 5-6, now on 3-4-5-6, the higher is gear, the bigger shaking is. Only at accelerating! Thanx.
Hollow180 black horses with M&T '04LithuaniaEurope
Mavrik
Posts: 8072
Joined: Sat Jan 03, 2004 6:41 am

Re: Shaking on acceleration (Hollow)

Post by Mavrik »

something wrong in the driveline that shakes when under load? doesn't seem right to me. If it was a tire balance, it would be there throughout the take off and coasting of the vehicle. I'd have a transmission guy check it out...
2007 stage 2 Satin White Pearl Subaru STi 2008 stage 2 Subaru STi hatch See my car at: Mavrik's car page
VibeGriff
Posts: 42
Joined: Thu Jan 05, 2006 5:15 pm

Post by VibeGriff »

My guess would be the U Joint is going....but i do not know. The vibrations would not be in your transmission if it is extreme (not enough room for any parts to wiggle), unless it is the mounts.
2003 Base Vibe: Lava Two Tone- Apex'i Super Ground - Kenwoods up front, Infinitys in the back- Alpine CDA 9805 - LEDs and Neons about.- Modified Air Box - TRD High Flow Air Filter- TRD Strut Tower Bar - TWM Short Throw Shifter- TWM Weighted Shift Knob - Brass Shifter Bushings- Lots of parts sitting in my room....and no time....
Beefball
Posts: 1
Joined: Wed Oct 11, 2006 3:44 pm

Post by Beefball »

(removed)!! I have the same problem too!!but only during acceleration from 2200 to 2500 rpm at 2nd gear...Anybody know what is happening here?(btw, my car was dropped with the Hotchkis springs)
Mavrik
Posts: 8072
Joined: Sat Jan 03, 2004 6:41 am

Re: (Beefball)

Post by Mavrik »

No idea and the guy never posted back with the results...
2007 stage 2 Satin White Pearl Subaru STi 2008 stage 2 Subaru STi hatch See my car at: Mavrik's car page
Post Reply