Transmission Resonnace and Failure Modes

[fyiforburns]

When my 96 XLT was new 0miles to 14K miles) I complained several times to dealer about a very loud intermitent low frequency vibration that resonated hard thru the floor board right behind the front seats and in the middle. This occurred around 50MPH (with O/D on). Acceleration level didn't seem to matter. Mechanics never heard it as it was an intermitent noise and never fixed it. I complained and took it in several times. Nothing was ever found or diagnosed. At about 70K miles I took it in because of significant shift delays which really indicated a serious problem. The trany was pulled and the rear end internals were chewed up and gauled. Has anyone experienced this type noise (I think it was a resonance effect) and could it be responsible for premature failure of the tranny? Any tech service bulletins that point to this. $2500 later at my expense I got a rebuilt tranny. Help

 

[rgiles]

Sorry to hear your plight and can completely relate. I haven't had the symptoms of your transmission so I can't help you there, but having an intermittent problem that never gets fixed I can relate.

I did have my tranny rebuilt for about the same amount of $ at 80,000 miles for a different reason.

Where did you get it rebuilt at? I did mine at AAMCO, but now that I know more, I would probably do it differently.

 

[asp84]

At about 70K miles I took it in because of significant shift delays which really indicated a serious problem. The trany was pulled and the rear end internals were chewed up and gauled.

"rear end internals" ???? are you talking about the axle? or the rear of your tranny. (I assume you are talking about the rear of the tranny)

Sounds like you got a lemon transmission. (aka: monday transmission)

Hopefully the new transmission will be better. Did they just rebuild it or a brand new one?

Good Luck,
Al

 

[fyiforburns]

Reply to asp84

asp84

I meant the trany rear end internals. If I could get a could drawing of the internals, I could identify a few of the gauled components. They replaced the tranny with a new rebuilt one. so far so good. 125,000 miles

 

[Opera House]

Adobe file

You can get on transtarindustries. com and download picture and parts list. I think this uses the same drawing # (1-197) as is in the ATSG manual. Request the online catalog, you have to give them your name and email thats all. Another is aceomatic.com, don't you just love that name.