transmission question

[3.1LUMITIC]

ok first off i have a 90 lumina euro 3.1 coupe and when i manual put the auto trans into first gear it whins like a s/c under the hood is this a normal thing or is somthing going wrong it doesnt do it when im in first gear when its in drive thanks

[Robby1870]

My old 92 made the same whine and it was a STRONG tranny. Dont worry about it. Why are you putting it manually into 1 anyway?

[TeeJay3800]

Why are you putting it manually into 1 anyway?

I was wondering the the same thing!

 

Mine also whines when the shifter is in 1st.

[digitaloutsider]

I think all 4T60's (at least the Chevy ones) do that.

[ZeroDCX]

My 3.8 Regal does that also.

[THe_DeTAiL3R]

Through about 40 runs down the track with my 1988 GP (4T60) I found no advantage of driving in 1st. Put it in 2nd and hold it there till the power runs out..

[JoroCorona]

I put my Lumina in 1st and powerlocked it at the track. The 4T60E shifts into second anyways, but I noticed it shifts about 200-300 rpms higher then normal.

 

However, my 4T60E doesn't whine in first.

[3.1LUMITIC]

well snow + stuck= droping into first then reverse ect. michigan winters suck calling 1-6 inches of snow tonight and its been raining all day so fun ride to work for me its getting icy out right now

[av8n]

Although mine does not whine, when you go into manual 1st ,the fluid pressure is increased from 90 psi to about 170 psi. I would think, ideally, you should not hear a thing.

[maybe2fast]

when the trans is put into first it activates additional clutches. I had a 1990 Lumina and it was slipping in first , but when you would put it in manual first it locks more clutches (per trans guy at work) that sound is the pump (sc sound) my 1990 never did that.

[3.1LUMITIC]

Well i guess it wont hurt anything sounds kinda cool though just rolling around the block at 10 and sounding like s/c under the hood i get weird looks from the ricer guys around here like wow does that lumi have a s/c