Bad vibration
Thread Starter
Launching!
Joined: Oct 2006
Posts: 271
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From: Sweden
Bad vibration Ive just got a bad vibration when accelerating hard and I think there is a banging noise too. It feels like its coming from the tranny area (m6). Its not doing it when reving in neutral. Any ideas? Tranny mount?
I Just noticed it after taking it out from winter storage, the only drivetrain related Ive done since last year is changing the rearend fluid, but the rearend is quiet and works good and its to far back..
I Just noticed it after taking it out from winter storage, the only drivetrain related Ive done since last year is changing the rearend fluid, but the rearend is quiet and works good and its to far back..
Thread Starter
Launching!
Joined: Oct 2006
Posts: 271
Likes: 0
From: Sweden
Yes Im going to check all that. I havent got the car on a lift yet, I wanted some ideas on what to look for before I do it. I didnt think about the TA, good point!
Can I just unbolt the tranny crossmember without supporting the tranny? Ive never messed with the tranny before.. Just fluid change lol
Can I just unbolt the tranny crossmember without supporting the tranny? Ive never messed with the tranny before.. Just fluid change lol
Yes Im going to check all that. I havent got the car on a lift yet, I wanted some ideas on what to look for before I do it. I didnt think about the TA, good point!
Can I just unbolt the tranny crossmember without supporting the tranny? Ive never messed with the tranny before.. Just fluid change lol
Can I just unbolt the tranny crossmember without supporting the tranny? Ive never messed with the tranny before.. Just fluid change lol
Thread Starter
Launching!
Joined: Oct 2006
Posts: 271
Likes: 0
From: Sweden
You'll want to support it with a jack, then remove the crossmember, then lower the tranny slowly, then you can inspect the tranny mount thoroughly...while you are at it, might as well install a poly mount so that you never have to do that again. Furthermore, might as well install a poly torque arm mount too.
I get what your saying, its a good idea while im at it.So you say lower the tranny slowly, do I have to unbolt the driveshaft or anything else to do this or just the crossmember?
thanks
, once you remove the crossmember, you don't have to lower the tranny at all, just unbolt the mount and bolt on the new one. You don't have to touch your ds either.T56 and 9" f.t.w!!!
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Launching!
Joined: Oct 2006
Posts: 271
Likes: 0
From: Sweden
Ok update:
I got the car on a lift yesterday to inspect and found NOTHING. All the mounts was good, tranny, TA, rear end etc. Exhaust hangers was also in place and everything seems to be good. But it still vibrates. The only thing I noticed was that there is a little vertical play in the driveshaft, but its just like a hair. I think thats normal.
Frustrating!!
Any more ideas?
I got the car on a lift yesterday to inspect and found NOTHING. All the mounts was good, tranny, TA, rear end etc. Exhaust hangers was also in place and everything seems to be good. But it still vibrates. The only thing I noticed was that there is a little vertical play in the driveshaft, but its just like a hair. I think thats normal.
Frustrating!!
Any more ideas?
Ok update:
I got the car on a lift yesterday to inspect and found NOTHING. All the mounts was good, tranny, TA, rear end etc. Exhaust hangers was also in place and everything seems to be good. But it still vibrates. The only thing I noticed was that there is a little vertical play in the driveshaft, but its just like a hair. I think thats normal.
Frustrating!!
Any more ideas?
I got the car on a lift yesterday to inspect and found NOTHING. All the mounts was good, tranny, TA, rear end etc. Exhaust hangers was also in place and everything seems to be good. But it still vibrates. The only thing I noticed was that there is a little vertical play in the driveshaft, but its just like a hair. I think thats normal.
Frustrating!!
Any more ideas?
I had a bad vibration once, jacked up the car, inspected the tranns mount, it honestly looked good, I even tried to pry up the tranns with a pry bar nothing. I finally dropped the cross member and found the trans mount almost in two pieces. Replaced it and it was all good.
I recently swapped my stock ds with a LS1 alum ds and it eliminated more vibration. I have a poly trans mount and soon poly motor mounts are going in. Vibrations is something I'm going to have to live with.
Thread Starter
Launching!
Joined: Oct 2006
Posts: 271
Likes: 0
From: Sweden
Exactly how did you verify that your mounts are all ok?
I had a bad vibration once, jacked up the car, inspected the tranns mount, it honestly looked good, I even tried to pry up the tranns with a pry bar nothing. I finally dropped the cross member and found the trans mount almost in two pieces. Replaced it and it was all good.
I recently swapped my stock ds with a LS1 alum ds and it eliminated more vibration. I have a poly trans mount and soon poly motor mounts are going in. Vibrations is something I'm going to have to live with.
I had a bad vibration once, jacked up the car, inspected the tranns mount, it honestly looked good, I even tried to pry up the tranns with a pry bar nothing. I finally dropped the cross member and found the trans mount almost in two pieces. Replaced it and it was all good.
I recently swapped my stock ds with a LS1 alum ds and it eliminated more vibration. I have a poly trans mount and soon poly motor mounts are going in. Vibrations is something I'm going to have to live with.
Ok I did like you did, tried to pry up on it with a prybar etc. It looked good and solid but idk. The weird thing is it doesnt vibrate everytime I get on it, most of the time though, like 75% of the times, and when it does its bad. If I have a passenger in the car both of us can feel it through the floor.
Thread Starter
Launching!
Joined: Oct 2006
Posts: 271
Likes: 0
From: Sweden
I have also noticed that the shifter makes more noise then it used to. I have a pro 5.0 som im used to a little noise but its def. more since the vibration started. Mostly on decel and when I blip the throttle under heavy load, like in 4th - 5th gear at 1500 rpms..
What do you guys think?
What do you guys think?
Thread Starter
Launching!
Joined: Oct 2006
Posts: 271
Likes: 0
From: Sweden
No I did not. Im thinking if I am going to remove the crossmember I might as well replace the mount while I have it apart, so If dont get any more suggestions or ideas im just going to replace the trans- and TA mounts (both poly) and go from there..