marine4life

i just started hearing a winding noise tonight on my way home... i cant figure out what it is... the winding sound's pitch get higher the faster you go... the transmission was rebuilt 4 years ago but has been in service for only 2 years... i just recently replaced the shaft seal in the back of the trans(about 3 months ago) bc it was leaking a bit... when i replaced the seal the trans fluid was full... i took a look at that tonight when i got home and it looked dry... any ideas of what it is?????

thesource

iTrader: (60)

Does it make noise in 4th gear?

Gen414

iTrader: (38)

Well, noises are very hard to diagnose over teh net. since we can't obviously "hear" them.
That being said, it could be bearings on teh way out (low fluid level, or extreme high mileage, as MOST rebuilds do NOT replace bearings)
Could be gear mesh (excessive clearance)
Ujoints (you SURE noise is coming from tranny)?
Rear end (again, you SURE noise is from tranny)?
Noise in ALL gears (1-6 and reverse)?

marine4life

the noise is a gradual noise as your speeding up... i usually can hear it slightly when i hit 50 mph and really noticable at 90 mph... the gear range doesnt matter what gear it is... i know its not the rear end... as for the u-joints i dont think it is...

marine4life

ok so i checked my diff fluid level and it was fine ... but it was metallic gray and felt gritty but i didnt see anything in it... i just had it rebuilt a year and some change ago too... is that the bearings in the diff going bad then????

bmartin8

Thats certainly what it sounds like to me. How much metal was on that magnant off the rear diff cover?

thesource

iTrader: (60)

Could have a pinion bearing going south inside the unit.

Gen414

iTrader: (38)

yeah, that is not a good sign. Change the fluid, pop teh cover off and then you will be able to see how bad it REALLY is, and report back...



Yeah, more than likely...


Very good possibility...

themack56

iTrader: (70)

my car has that whining noise as well. but i think its my belts or the fuel pump. cause when its at an idle it does it in neutral in idle. when i drive it tends to get a bit louder the whining that is, so its either my belts up front or my fuel pump.

Johawk

iTrader: (2)

so... my trans (t56) just started making this noise as well but it is only 5th and 6th gear... and it is intermittent. I can make it go away by shifting 4th and then back to 5th or 6th again. There is some random clunking under load associated with the whine noise. is this time for a rebuild?

themack56

iTrader: (70)

make sure the clunking noise is realy the tranny. it can be the mount going bad. or the y hititng the floor.

Johawk

iTrader: (2)

Ohhh its the trans. new trans and torque arm mounts and stock Y. plenty of clearance. I can feel and hear this clunking thru the Pro5.0