th 400 whinning noise

[cooler26]

I just put a th400 in my monte. When i started it for the first time the trans has a whinning sound coming from the front. The higher you rev the louder it gets. New b+m torque converter. The guy I bought trans from said it was rebuilt. Looked clean inside. I have new fluid and its at the right level. Took it for ride around block and trans is still whinning. seemed like trans was slipping between shifts. Any ideas? Im thinking its the pump....

 

[chevyman454]

when you installed it did you make sure the TC was all the way in?

 

[cooler26]

yeah it clicked twice. and bolted to motor with no pressure...

 

[Bonnewagon]

Sounds like the front pump.

 

[Minion1186]

I thought you rotate them three times and here three clicks and thats how you know its on right? Do you fill the converter before you put it on?

 

[cooler26]

Put quart fluid in t c before installation. Going to to change filter to mesh one. Someone said filter could
Be restricting flow to pump. Other then that im stumped...

 

[chevyman454]

put it up on ramps and get a stethoscope and probe near the pump

 

[cutlass79]

when i put my th400 tc in it clicked 3 times

 

[chevyman454]

theres 2 sets of splines and the pump needs to be engaged

 

[cooler26]

reseated tc again. Also put washers between flyweel and tc to close gap. Didnt make a difference still have whine. Also transmission line dont seem to be heating up... dont think have to much pressure from the pump.