Fj62 tranny question

[BigSur]

Drove the 62 pretty far yesterday and about 15 minutes into the drive we were going about 65mph and the i heard the dreaded high pitch whine sound...after about 15 seconds it went away but it came back a couple of minutes later. What am i hearing? Is it a sign my tranny is going out? I am going to drop the pan and clean the filter and put in some synthetic tranny fluid and see if that does the trick. But i want to know what am i hearing?

Jason

 

[zcruiser]

was your wife in the car at the time?

(Ok, man, sorry, I have no idea.)

 

[archie]

Never had that problem. Tell us what you find in the filter. I haven't changed my fluid since I bought it and wonder what I would find in my filter.

 

[Fast Eddie]

Were you running the AC.

 

[BigSur]

OK, i dropped the pan cleaned the filter (wasn't much there) and replaced the gaskets and put in some ATF synthetic fluid and man what a difference. Shifts like butter!! I am very impressed with synthetic ATF fluid. I haven't dirven around enough to see if i hear that noise but once it comes back, if it comes back i will report.

 

[archie]

What was the color of the old fluid? looked a little dirty or burnt? What brand of synth did you use? How many miles on your truck? Thanks!

 

[BigSur]

Hey Archie, the fluid was new as i put in new fluid about 300 miles ago when i rebuilt my t-case so i couldn't tell a difference in the color. I use ATF Synthetic Dextron 4 from the toyota dealership. It was $5 a qrt so kinda pricey but so far i love it. took in 6 qts and i still need a lil' bit more in there. My 1990 FJ62 has 192K on the original tranny and engine and runs great.

 

[archie]

Mine has 210k and pretty much runs good too. It has that common "flare up" that happens once in a while when shifting from 2nd to 3rd gear but I don't mind it too much because it seems normal. Might that noise you heard be related to the transfer case,seeing that was newly rebuilt?