Trouble shooting torque converter?
#2
I'm not sure how you specifically check the torque converter. What type of problem are you having? I would imagine a bad torque converter would simply cause the transmission to slip more than expected.
#5
Transmission fluid coming out of the fill tube could be due simply to the transmission being overfilled. Are there any other symptoms of a problem with the transmission? Does the car move forward when you put it in Drive? Does it shift through the gears ok? What about when you put it in Reverse?
#7
Many symptoms of a bad converter are similar to a bad trans. Slippage, noise etc. There are some trouble shooting methods to help isolate a possible bad converter they again are similar to trouble shooting a trans.
Generally if your loosing fluid out of the vent tube in a TH400 its over full. Fluid level & condition is generally step 1 in transmission tbl shooting.
To answer the question, yes pull out the TC and cut it open.
#9
X2 on the vent tube or it's overfilled. Heat is also an issue with slippage. I'd check cooling lines and vac line to the control module also make sure nothings leaking I can see a pinhole in the vac line causing some problems shifting.
#12
With ported vacuum the trans will not shift until an ungodly hi rpm. You'll be singing the Little Nash Rambler Beep Beep song, and yelling "hey buddy how do I get this thing out of second gear"
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