what would cause my manual trans truck to make a faint whining sounds when down shifting into 2nd gear?

Answer 1

If you are going too fast and your RPM is too high, you will hear a whining sound. Other than that, you may need to have it looked at.

Answer 2

i own a shop,and it could be a center bearing making this noise in it,i have a Nissan sentra that does this,and it still does shift real good,unless its real bother some sound i wouldn't worry too much about it, usually they,ll run around 50 thousand miles like this,and you can probably change the grease or oil in it,which ever it has,and quieten it down a lot,but right now unless its real bad ,i wouldn't bother with it,its a 5 dollar part,and like a 400 dollar labor bill to repair it,you can replace the transmission with a good used one cheaper than you can repair this one,good luck i hope this helps.

Answer 3

the fact that you have more rpm's built up in the engine than the tranny can endure in a lower gear and you are using the motor for a brake to slow the car/truck to a lower speed... so the engine is doing what is normal --- talking back to you and telling you that it is not good to use the engine as a brake and it is also hard on the clutch .... take your foot off the gas pedal ---- slow down and live calm/easy.......

Answer 4

Sounds like a synchronizer whining. It won't cause a real problem, but if it is still under warrantee, you should make the mftr fix it. Good luck.