700r4 whine ?

[CB77GMC]

Destroyed th350 and just swaped in a 700r4 and all seems good but I hear kind of a low pitch whine noise when it is in gear. Just wondering if this is norm. I think the only reason I hear it is that I have trans cover off on floor pan.

 

[ryan22re]

Have any leaks? My guess is that it's coming from the pump or pump seal.

Or put the trans cover on it and turn the radio up.

 

[CB77GMC]

Have any leaks?

Trans has no leaks but 208 has a drip

 

[Confedneck79K30]

is it more noticeable at idle or while driving?

 

[CB77GMC]

is it more noticeable at idle or while driving?

Driving low speed and reverse.

 

[Confedneck79K30]

could be the pump whining...

 

[my88texastruck]

Could also be your torque convertor. Does it stop whining in park and neutral?
When you put it in gear, the convertor locks 70 or so percent in which the internals start spinning on the bearings within. When it is in park or neutral, everything is freewheeling.
I had the same problem with a "new" re-man a while back - it was so much fun the first time to drop and get the tranny rebuilt with a "new" convertor, I got to do it again to replace the "new" convertor with a different one!!

 

[CB77GMC]

Well got floor and 4wd shifter in and sound is low but still there. Don't hear it in park. Neutral I think I can hear it but not sure. Think I'm going to order a trans PSI gauge to check and see if good there.

Just orderd http://www.bowtieoverdrives.com/catalog/catalog_inc/viewitem.php?ITEMID=572
Good price comes with trans temp gauge too.

 

[Confedneck79K30]

remember, new doesnt mean good...

 

[CB77GMC]

remember, new doesnt mean good...

Yea I know

Has no slip at all pulls great. when gauges get here and I get them installed should tell me alot.

 

[CB77GMC]

Does the 700r4 just sound different than a th350

 

[djsblaze]

For what its worth, I bought a stage III Bowtie 700, and it does not whine...