Tranny Downshifting Clunking normal

[tojomatic]

Hi Guys and Gals

I was driving my 02 LC this morning and I noticed some clunking when stepping on the accelerator from coasting speed ( say 50 to 30 then stepping on it). Clunking was very noticeable and being me, I duplicated the clunk like 10 times. Anyhow, is this normal. Just had the tranny, diffs and TCase fluid go all synthetic about 500 miles ago back in May and haven't driven the truck that much since.


If there's a thread on this just point, but I did not notice any.

Toj

 

[100 TD]

Try a 100 forum search on driveline, clunk, bang etc, there has been plenty discussed before

 

[fyton2v]

If by "normal" you mean it's only happening to your truck... then yes, it's normal.

Sorry, maybe that isn't funny. My '00 has a very quite tranny. Don't recall much clunking under any circumstance. I'd have the guy that replaced your transmission fluid take it for a test drive. On my recent tranny fluid exchange I asked my mechanic to put in synthetic and he said he wouldn't do it.

Good luck.

 

[vampire]

My tranny had a clunk in it, and I just ignored it thinking it was the rear end taking up slack. But.... The tranny finally gave out. They showed me the transmission parts and it looked like the front bearing on the planetary gearset started to fail and finally worked its way into the planetary gearset and destroyed it. Wish I would of had some one look at it sooner, the planetary gearset was 700$ by itself and that doesnt count the rebuild kit and labor. total cost 2000$ and I pulled the trany and put it back in myself. If you start hearing unusual sounds from the drive train start checking stuff. Grease the Drive shaft and U joints and if that doesnt stop it, start thinking preventive, before failure its much cheaper. Good Luck.