I couldnt tell w/o tach. When locked up @ 45+ mph it felt like a slip or a cut in/out ? I replaced alot of gas/electrical parts on tbi.(see my other posts) Still acted up, unplug the tcc on side of trans & although rpm higher(normal) it didnt gimme that slip/cut. Is that how a bad tcc would act old bear? Feels like a wire ground out. Got my fingers crossed. Thanks"see RPM rise when brake tapped & lockup disengages "
When in forth and TCC locked up. A rise in RPM when brake is tapped and (TCC) Torque Converter Clutch disengages is what we would expect for normal operation.
May be a bit ugly (that 3 wire plug) prongs are there, i will test w/ohm meter and may splice in new wire w/female bullet connectors to be 100% sure. Will do brake lite switch if necessary after test drive as when stopping (sometimes) car want to forge ahead. Gettin Close , sure have learned lots, whew ! Thank You 4 input. Wish i went this direction 1st.That is what I would expect with TCC wires unplugged at the transmission.
With no signal going in, it would not cause the TCC solenoid to engage.
Without being locked up at 1:1 by the TCC, there would be some fluid speed difference and the RPM would be a little higher on the tach. On mine it was about 200 RPM higher.
However, we are not yet sure if it is fluctuating signal coming in, or the solenoid inside the lower trans.
I think the trans shop that repaired mine turned the truck off.
I think Dave put power to the correct wire(s) to activate the solenoid to hear if it clicked on and held or if it bounced on and off. I don't remember if he heard it. I think with trans pan dropped he could hear it.
Hopefully someone will know if that is a useful additional test.
Also, how do the connections on the multi wire plug look where you disconnected from the trans?
Summit has an aluminum pan for the 2004r. It is pricey at around $375 as I recall. You can get dust covers there as well.Thanks to all for contributing to this 2004r thread. I have two questions: First one is where or who sells aftermarket 2004r trans pans? Second question has to do with the best source for 2004r dust covers?