No noise, but now only have 2nd and reverse. A re-manufactured transmission comes with a ; three years compared to an average 90 days for a rebuilt transmission. Other than that the transmission shifts fine and operates normally. Transmission must be removed and rebuilt. Happens after a tire burning take-off. In addition to erratic shifting, the trans control program will default to backup shifting mode if you drive it long enough with this bad sensor, and as a result line pressure through the valve body will be boosted to maximum value, creating harsh shifting.
Note that a leaking front seal usually means the bushing is walking out. Rear of transmission needs to be fixed. Changes fine thru all gears except 4th. Any idea what else to look at? May have to replace converter also if hub is scored. These solenoids are found on the front of the valve body and are easy to get to once you drop the oil pan. However, status parameters are only an indication that output signals have been sent to devices by the control module.
Tachometer, speedometer, and gear selector goes off and on by itself. Daryll 2-23-07 I have a 93' chevy 1-Ton, the trans. Ron Wilson 7-17-12 The snap ring broke in the intermediate clutch. The magnet portion of the solenoid is made up of a long coil of single strand wire. No specific conditions seem to cause the problem.
In Conclusion Hopefully this article has given you the info you need to be able to say that the issue affecting your automatic transmission is an electrical issue or an internal issue that requires an overhaul. Once the electricity is disconnected from the solenoid, the magnetic field disappears and a spring returns the plunger and valve to their original position. The factory converter has an internal clutch that controls the lockup of the torque converter, and this clutch's torque capacity is minimal. The genius that had this truck prior amazes me more and more every day. The 4L60E transmission weighs 146 pounds dry, and 162 wet. When car has been turned off for a bit, then back on it will run normally.
How Can I Tell If It's Just A Solenoid Failure? When the problem first started, the overdrive 4th gear was spotty. Then as rpms level out,trans seems to stall or slip. The transmission does not need to be removed from the vehicle to replace a solenoid. I found a reasonably price used motorhome trans with integrated parking brake on it. Going to tear her down on Friday and have a look.
The wire that makes up the magnet can break. Trans shifts great, no hard shifts, no delays, no slipping, and no codes popping up. Remove transmission and rebuild, or refill pan and find the leak. You can stop for a few minutes and it will shift fine for a few miles then it starts to shift hard again. I also can start with the shifter in drive, take off punching it with the high rpm's it also shifts into drive. The connector on the transmission pushes into the transmission when I try to plug the cable into it. If I should replace it what are some options for motors that will bolt right to the tranny without a headache? Transmission must be removed and rebuilt.
The longest made it to just under 10 Months. Turn ignition on with engine not running. David Baker 4-22-07 On my 4l80e trans. Is this a speedsensor problem??? Transmission will eventually die a loud, catastrophic death. If i disconnect the harness for a couple of hours work fine for a while.
It wont shift out of 2nd, tach and speedometer started acting funny prior to the trans problem. You can find this tutorial in Spanish here: at: autotecnico-online. It does not indicate if devices have responded properly to that signal. Trouble codes are separated by slightly longer pauses. Because I am told 1993-1994 diesel only and I want to make sure that the yrs won't be a problem. The next morning it seemed to run fine. I don't want to get ripped off.
Should I put my spare 4L80E in or what. There are several things I tried before getting to the surecure, first was tcc solenoid, then shift solenoids, then trans temp sender, o-ring for trans electrical plug, etc. Flush the transmission cooler and cooler lines. May also have worn boost valve can replace in the pan. Seal restorer may fix last problem, but probably remove and rebuild needed.
Come to a complete stop,taking off,once again steady acceleration through all the gears, but loses speed whenever it has to downshift back to 3rd gear. This article deals with fixing your factory 4L80E to make it as durable and reliable as it should have come from the factory. I highly recommend doing so with a over one that was simply rebuilt. The transmission has been rebuilt and I recently replaced the governor to see if that was the cause. Its a 93 Suburban 4x4 8 lug 2500. The 1993 standard engine was a 5.