92 Park Ave Transmission Noise

[Student]

I hear a whine in transmission in 2nd and third. My previous Buick, 86 lesabre had the same whine. On my 86 the whine stayed after a transmission was replaced.

Is this a torque convertor problem. If so what causes it?

[Hypsi87]

it might be a rearend noise...... GM rearends as far as my experence goes tend to whine when they get a few miles on them

[Student]

Originally Posted by Student

I hear a whine in transmission in 2nd and third. My previous Buick, 86 lesabre had the same whine. On my 86 the whine stayed after a transmission was replaced.

Is this a torque convertor problem. If so what causes it?

Rear end? Pardon my FWD ignorance. Is there a diagram? The salvage yard said it might be the planetaries. Is this the same thing. I don't believe you mean a ring and pinion.

Thanks,

Mark

[Student]

Originally Posted by Student

Rear end? Pardon my FWD ignorance. Is there a diagram? The salvage yard said it might be the planetaries. Is this the same thing. I don't believe you mean a ring and pinion.

Thanks,

Mark

Ok I guess I'm answering my own email, but I just received by Buick Manuals, Thanks to whomever posted the site. I see in the fantastic tranmission diagrams, what looks like a rear-end planetary gear on the RHS of the transaxle.

[Student]

In looking at the transmissin noise diagnosis, It passed: pump whine, and convertor whine tests. The whine only appears in 1 and 2. According to the test sheet, it could still be the planetaries, but, I wonder if the 1-2 gear assemblie ever goes bad?

[sega]

my 92 lesabre whined between 2nd and 3rd and it turned out i need a new transmission. it lasted a bit with the whining then one day it would go, stop, then catch and go again.

[formulaross]

My '92 LeSabre (same tranny) whines in 1st. I'm not worried about it. With the manufacturing tolerances they use, sometimes a planetary gearset has some whine. Not perfect, but it owrks.