Odd vibration in 4th

[cwylie]

So I limped my trans a few weeks ago so I know a rebuild is coming. I started getting this weird vibration in the top of 4th gear when on the throttle even on my low tunes. Could this be the trans?

 

[Mike L.]

So I limped my trans a few weeks ago so I know a rebuild is coming. I started getting this weird vibration in the top of 4th gear when on the throttle even on my low tunes. Could this be the trans?

Could be converter. Need a Tech 2 and moniter the TCC.

 

[marc75]

same thing for mine 4-5-6 gear half throttle running 1055 (4k miles) i tought it was my C2...what i need to do with the Tech 2 ??

 

[marc75]

???

 

[marc75]

Do i need to check the TCC when im in 4th gear or if i have a problem with my conveter i can see it in first gear in the garage ??

 

[Mike L.]

Duplicate the vibration with a Tech 2 attached and see if the TCC is on or off while it's vibrating. If the TCC is applied it is probably slipping converter clutch. If TCC is not applied, it will be something else causing your vibration.

 

[marc75]

ok even on a low miles suncoast 1055 ?

thank you Mike for your help

 

[Mike L.]

ok even on a low miles suncoast 1055 ?

thank you Mike for your help

I've never seen a Suncoast converter vibrate.

 

[marc75]

ok i ll pull out the trans to refresh it with a stage 6 anyway so i ll see what my C2 looks like. when im WOT the trans shift very well it's only when im at 60-70 and gently push the throttle (im running big twin 900-1000rwhp)

 

[cwylie]

Can I see that info with EFI live?