Major shudder...Torque converter or plug/coil

[yobie]

hello,

I have a major shutter in my 4r100 at around 30-40 mph. The shudder is consistent driving at 1500-1800 rpms (30-40 mph) in 3rd or 4th gear. I figured it was the torque converter, but I notice some people get vibrations with bad plug/coil.


I suspect its the TC, and if so what do I do to fix this issue?


Thanks,
Matt

[SS4Matt]

probably your converter. mine would rattle the change out of my cup holder when it went.

[bruce51d]

what kind of plug/coil are you talkin about?

[yobie]

Originally Posted by bruce51d

what kind of plug/coil are you talkin about?

To be honest I dont know, I was just reading somewhere, I think it was probably for non diesels tho.

What should I do about the TC. Do I need to replace it or does it go beyond the converter? I have already tried a trans flush with no success.

[Flatbedcowboy]

Ya mine shuddered to, but not that bad, till one day I loaded it to the bones. Ripped the converter off the bolts, and spilled tranny fluid all over the road. I would start with the converter, GET AN UPGRADED ONE!

Seriously like even if you are plannin on keeping it stock GET AN UPGRADED TORQUE CONVERTER, they dont cost hardly anymore and they will last longer and perform better in the long run. I bought a stock replacement and I have kicked myself since