Torque Converter Acting Weird

[Dieselfuture]

I forgot is cps on a 5volt reference circuit ? That shares other sensors like oil sending unit. I remember @Me78569 had an issue with something, oil sensor was internally shortened out and messing with the 5 volt reference. 

Or it could be your tone ring on the crankshaft, there were others that had this issue with the tone ring coming loose. I think you could see the tone ring through the sensor hole, maybe try rotating the engine while you looking inside, at the same time using a screwdriver see if that ring is loose. I'm not saying stick a screwdriver in there and turn the engine, I'm sure you know that. 

[Mopar1973Man]

Tone ring coming apart on the crank? There has been a member that broke his tone ring when it fell out while running. It can happen.

[hdpwipmonkey]

I hope its not the tone ring coming off.  That dont sound like a fun fix... 

 

I did notice yesterday that it only happens when the engine is cold once it warms up (above 140) it dont happen...  Here we go again. 

 

I will start another topic on this to keep things tidy on the forum.

[Dieselfuture]

 

You have quad and you're saying above 140 it doesn't do it, 140 is where quad takes over control from ecm coincidence 

[Mopar1973Man]

Quad is adjustable for warm up temp. Change the setting try again and see.

[hdpwipmonkey]

thanks guys.  I will give that a try.  I do have it setup to start a 140 degrees.  I didnt even think of that.

[hdpwipmonkey]

Well, the gremlins are back.  Same issue, when I step on the brake the TC disengages and immediately re-engages even though my foot is on the brake.  The only time that it will disengage and stay off is if I am below 45ish MPH.   The only thing I did was disconnect the grounds while I removed the starter when I did the CKP sensor.  Still seems like there is a bad ground somewhere.  The hunt continues...

[hdpwipmonkey]

Well, after 2 years this issue has returned.  Same issue.  TC locks up and will only unlock if I put my foot on the brake or if under about 42mph.  If over 45ish and I put my foot on the brake it will unlock and as soon as I take my foot off the brake it locks back up harshly.  The only way it will stay unlocked is if I keep my foot on the brake until the speed is below the 42ish mark.  We did just have a bunch of snow a few days before this started happening.  The same thing happened the last time.  Coincidence?   I'm thinking when all that snow melts it allows water to get into the PCM somehow 

 

I will be pulling it into the garage this weekend to go through the grounds again and to fix the PCM ground splices that @IBMobile recommends.  I'll reinstall dielectric grease into the PCM plugs too.  Fingers crossed!