Transmission install question

[dboyw]

I am finishing up the install of a BTS trans. Installed a new flexplate also. Filled the trans with fluid according to Brain, and added more once truck was started. I have a screeching noise when the truck is in gear, but wheels not turning. Does not seem to happen when truck is in park.

Could this be the torque converter just not full of fluid yet? Brian's direction say to not remove the TQ when installing the trans so I was unable to fill prior to install.

I have a call into Brian but was just looking for some advice here.

Thanks

[MHAUTO]

I have always tried to fill the TC before installing. That dosnt sound rite to me but I could be wrong. As for the noise that is something that I have never heard of. But im shure someone with more experiance with this will chime in soon. Good Luck!!!!

[the trav]

did your old trans catastrophically fail? if so, the cooler/lines are probably full of harmful debris... that is being fed into the new trans... no bueno.

let me know

and why would he say not to remove and fill the tq prior to install?

[AddictedOffroad]

Originally Posted by the trav

did your old trans catastrophically fail? if so, the cooler/lines are probably full of harmful debris... that is being fed into the new trans... no bueno.

let me know

and why would he say not to remove and fill the tq prior to install?

Because a lot of people don't know how to properly reinstall the TC back onto the tranny. The 4R100 TC has three "clicks" and if you don't push it all the way onto the input shaft correctly and insure proper spline engagement on the input, you can smash it against the pump and take out both the pump and TC when you install it.

That and you do NOT need to fill the TC when you install it. The pump will fill the TC in a matter of seconds once the motor is started.

[dboyw]

Originally Posted by AddictedOffroad

Because a lot of people don't know how to properly reinstall the TC back onto the tranny. The 4R100 TC has three "clicks" and if you don't push it all the way onto the input shaft correctly and insure proper spline engagement on the input, you can smash it against the pump and take out both the pump and TC when you install it.

That and you do NOT need to fill the TC when you install it. The pump will fill the TC in a matter of seconds once the motor is started.

Thanks AddictedOffroads. i did not know that the 4R100 took three clicks. I know you usually go for two, but three was new to me.

As for the screech, I believe it is/was the flexplate rubbing on the inspection cover.

[AddictedOffroad]

Originally Posted by dboyw

Thanks AddictedOffroads. i did not know that the 4R100 took three clicks. I know you usually go for two, but three was new to me.

As for the screech, I believe it is/was the flexplate rubbing on the inspection cover.

I recently had an issue when installing a new TC with a new flex plate. The flex plate came from Rock Auto. Well, the offset was wrong on the flex plate and it sat too close to the block and the starter was hitting it when running. Lesson learned, and a new Ford flex plate was reinstalled.

[AddictedOffroad]

BTW, this is what a TC looks like when its smashed against the pump when not installed correctly. If the TC looks like this, imagine what the pump looks like inside the tranny. This was done by not having the TC fully engaged into the pump(its keyed btw). Then the bellhousing bolts were tighten down against the block crushing the TC into the pump.





This is why Brian at BTS tells you not to pull the TC off of one of his trannies. It only takes a couple seconds for the pump to fill the TC anyway, so there is no reason to fill the TC prior to install. No damage can be done to the TC by not filling it.