32RH torque converter lockup
- Thread starter Eddie Greenlee
- Start date
Hey Jerry,on my 2002 the flow master got a little louder after I deleted the 3rd. Cat during the tummy tuck.but after the gear change to 4.56 I’m still getting 12 mpg,but do I need to adjust my tv cable now,is there an easy way to tell if my converter is locking up,I can’t really tell-with the louder noise-thanks
When the torque converter locks up it almost feels like a 4th gear is engaging and the rpms drop 100-150 or so depending on your speed.
I don't believe the TV cable has any effect on when the torque converter locks up. The factory adjustment says the cable slack should be adjusted so there's no slack but it's not actually pulling on the TV lever. In some cases it can be adjusted a little tighter but @mrblaine is more familiar with when that should be done.
It does, about 3 clicks more than zero to increase the governor pressure to hold it in gear just a little bit longer before it shifts.
Well I went out and disconnected the TCC . The transmission went through 1, 2 and 3rd and never did the torque converter lock up. Then reconnected the TCC and the torque converter did lock back up.
Good, that localizes the issue to something electronic. The speedometer may need to be calibrated since the PCM uses your speed to calculate when to lock it up, or perhaps your PCM is going bad.
If you didn't install a SSSYE and are still running the stock speedometer gear.... http://www.4x4xplor.com/speedo.html
If you're not still running the factory speedometer gear you'll need to install a Speedohealer to calibrate it.
Ok I’ve got the speedohealer ordered.
We will get back together when it comes in
.
Thanks for y’alls input and direction.
We will get back together when it comes in
. Thanks for y’alls input and direction.
Well got my Speedohealer in and installed it today. Remarkable how well it works.
I’ll probably tinker around with it a little, but for the most part it fixed the speedometer and the torque locks up much later now.
I’ll probably tinker around with it a little, but for the most part it fixed the speedometer and the torque locks up much later now
.I'm working to resolve TCC not locking problem on my 1998 with 32RH. I've verified 12V at the TCC clutch solenoid connector on the tranny with ignition on. I've verified wire continuity from the PCM connector to the tranny connector. So external wiring is good. Checked resistance through the lockup solenoid: 30 ohms...should be good. So either the PCM is not taking the solenoid to ground or solenoid or TCC is bad.
My next planned troubleshooting step is to disconnect the tranny connector and use a wire piercing probe to see if the PCM provides ground continuity in the connector wire coming from the PCM. If yes, problem is either the solenoid or the TCC. If no, then I'll need to look at the PCM and/or TCC lockup inputs to the PCM.
My questions:
1) Does my troubleshooting plan and logic make sense?
2) There are no stored DTCs that showed up with a scan. Understand that the PCM looks for RPM change when it commands TCC to lock. If the TCC is not locking, shouldn't there be one?
3) Only mod affecting speedo accuracy is I have 33" tires. Speedo is off only a couple mph. I wouldn't think should cause problems. Anybody know?
4) I mentioned that I read good resistance through the solenoid coil. Anybody ever seen where the solenoid can be good electrically but fail to move mechanically or fail to change fluid flow due to debris/plugged up?
My next planned troubleshooting step is to disconnect the tranny connector and use a wire piercing probe to see if the PCM provides ground continuity in the connector wire coming from the PCM. If yes, problem is either the solenoid or the TCC. If no, then I'll need to look at the PCM and/or TCC lockup inputs to the PCM.
My questions:
1) Does my troubleshooting plan and logic make sense?
2) There are no stored DTCs that showed up with a scan. Understand that the PCM looks for RPM change when it commands TCC to lock. If the TCC is not locking, shouldn't there be one?
3) Only mod affecting speedo accuracy is I have 33" tires. Speedo is off only a couple mph. I wouldn't think should cause problems. Anybody know?
4) I mentioned that I read good resistance through the solenoid coil. Anybody ever seen where the solenoid can be good electrically but fail to move mechanically or fail to change fluid flow due to debris/plugged up?
This thread is from 2021 and Jerry took his ball and went home.... but there's no need for 2 threads on your one issue.
Similar threads
