Hi folks,
My name is Pete. I live just outside beautiful Denver Colorado, and I have a 2011 ram 2500 5.7 4x4 SLT that has apparently lost it's mind.
I rebuilt the engine and transmission over the last few months. The engine runs great, no engine codes at all.
I wish I could say the same for the trans. This is the 3rd 3/4T auto I've rebuilt over the last few years, and I'm stumped. I replaced all clutches, seals, etc inside the trans, installed new OSS, ISS, line pressure sensor, solenoid pack, of course filters too. I took it out for a test drive around my neighborhood, and everything seemed fine. I shifted up to 3rd in auto mode, and manual mode seemed to work like it should. I took it out on a longer faster drive, and I think I never got out of 3rd. I took it on an small highway, and it was definitely not shifting right. I was turning 2500 rpm at 55 mph. I don't know if that was 3rd or 4th, but it certainly ain't right.
Now I have only 1st gear, I have gear ratio codes and hydraulic codes.
Is it possible the PCM has died / is dying? I probably have to take it to a dealer to be sure about that, I'm guessing. Why else would the manual shift feature stop working? Really odd behavior.
I'm pulling the valve body to have a look tonight, and do my air checks again.
Any other suggestions / ideas?
My name is Pete. I live just outside beautiful Denver Colorado, and I have a 2011 ram 2500 5.7 4x4 SLT that has apparently lost it's mind.
I rebuilt the engine and transmission over the last few months. The engine runs great, no engine codes at all.
I wish I could say the same for the trans. This is the 3rd 3/4T auto I've rebuilt over the last few years, and I'm stumped. I replaced all clutches, seals, etc inside the trans, installed new OSS, ISS, line pressure sensor, solenoid pack, of course filters too. I took it out for a test drive around my neighborhood, and everything seemed fine. I shifted up to 3rd in auto mode, and manual mode seemed to work like it should. I took it out on a longer faster drive, and I think I never got out of 3rd. I took it on an small highway, and it was definitely not shifting right. I was turning 2500 rpm at 55 mph. I don't know if that was 3rd or 4th, but it certainly ain't right.
Now I have only 1st gear, I have gear ratio codes and hydraulic codes.
Is it possible the PCM has died / is dying? I probably have to take it to a dealer to be sure about that, I'm guessing. Why else would the manual shift feature stop working? Really odd behavior.
I'm pulling the valve body to have a look tonight, and do my air checks again.
Any other suggestions / ideas?