look to see if you have a vacuum hose off or your transmission filter and fluid needs to be change.

It seems like it is just sticking intermittently so I would suggest a transmission fluid and filter change to see if the clean fluid will clean out the TCC solenoid. If not, it will have to be replaced.


The TCC release switch is part of the automatic transmission fluid pressure (TFP) manual valve position switch. The TFP manual valve position switch is mounted to the transmission valve body.

The TCC release switch is a normally-closed switch. When the TCC is released, TCC release fluid pressure opens the TCC release switch which opens the TCC release pressure circuit. When the voltage on the circuit is high (switch open), the PCM recognizes that the TCC is no longer engaged.

If the PCM detects that the TCC release switch is closed when the TCC is commanded OFF, then DTC P0742 sets. DTC P0742 is a type A DTC.
Conditions for Running the DTC

* No TP sensor DTC P0121, P0122 or P0123.
* No TCC PWM solenoid valve DTC P1860.
* No TCC release switch DTC P1887.
* The engine speed is greater than 500 RPM and not in fuel shut off.
* The engine torque is 95-270 N·m (70-200 lb ft).
* The TP angle is 5-45%.
* The transmission fluid temperature is 20-130°C (68-266°F).
* The time since the last gear range change is greater than 6 seconds.
* The speed ratio is less than 7.0.
* The TCC is commanded OFF.
* Slip speed is -20 to +25 for 8 seconds.

Conditions for Setting the DTC

The TCC release switch is closed 6 times for 4 seconds each, during one trip.
Action Taken When the DTC Sets

* The PCM illuminates the malfunction indicator lamp (MIL).
* The PCM commands the TCC ON at maximum capacity.
* The PCM freezes shift adapts.
* The PCM records the operating conditions when the Conditions for Setting the DTC are met. The PCM stores this information as Freeze Frame and Failure Records.
* The PCM stores DTC P0742 in PCM history.

Conditions for Clearing the MIL/DTC

* The PCM turns OFF the MIL during the third consecutive trip in which the diagnostic test runs and passes.
* A scan tool can clear the MIL/DTC.
* The PCM clears the DTC from the PCM history if the vehicle completes 40 consecutive warm-up cycles without an emission-related diagnostic fault occurring.
* The PCM cancels the DTC default actions when the fault no longer exists and the ignition switch is OFF long enough in order to power down the PCM.

Diagnostic Aids

* Inspect the connectors at the controller, the component and all other circuit connecting points for an intermittent condition. Refer to Testing for Intermittent and Poor Connections in Wiring Systems.
* Inspect the circuit wiring for an intermittent condition. Refer to Testing for Electrical Intermittents in Wiring Systems.
* Rapid fluctuation in line pressure could set DTC P0742.
* An open condition in the TCC release circuit or switch would set DTC P1887. Open circuits are not diagnosed in DTC P0742.

* Inspect for a pressure regulator condition.
* Inspect for abnormal line pressure.
* You may notice an engine stalling condition.

I don't understand.

Check the condition your transmission fluid level (it is possible that your fluid is contaminated) and refill if the level is low. Inspect the adjustment of your throttle linkage for your transmission. Also check the condition of your CV and U joints, idle speed (it is possible that the adjustment is set too high). If you all that I’ve mention are in good condition it is possible that your transmission needs an overhaul.

There's so many things could cause the problem, it could be Front Wheels out of balance, loose or worn front end suspension, or a bent wheel rims that probably hit a curb or a large object.

To diagnose your problem further, just refer to this site 'AutoMD.com" and click diagnose. You have to enter your (Y/M/M/SE) Car year make model and engine sized, and there you will see a category of possible causes that corresponds to your problem. Or just open the link below.

http://www.automd.com/diagnose/problems

Estimate costs for the parts and repair labor are indicated. Just surf and explore to the site and you will find answers (causes and remedies) to your problem.

The problem is commonly called as Clutch Disengaging Problem. This caused be a worn or warped Clutch disc, if the groove to the disc is worn already, the disc disengaging will be difficult for it probably sticks. Or an Air to the clutch line, It could be a fluid leak to the system that cause the problem, a leak to the Master Cylinder, and to the Clutch line.

To diagnose the problem further, you have to check the Clutch System and replace any defective components. The problem could possibly be the Transmission, but mostly the clutch. It’s for the Clutch.

It is possible that air is present in your system. After you replaced your clutch slave cylinder did you bleed your system?

You have to bleed out the air from the slave cylinder. The clutch master is where the fluid is added.. There is a special and specific bleeding procedure that has to be done exactly as stated in the shop manual. You really need to have a shop manual to perform this procedure. There are special tools required as well.

i am very soory to hear this but i have to tell you that i went trough hell with my 2003 saturn ion3 cvt transmission is a nightmare this trans is made in korea for saturn is a no good trans if they fix it it may work for a few miles and then it will break again tell them to quit playing around i put on my car a AF23 JAPANESSE TRANS and let me tell you it works like never before they need to recall this transmission but there is a problem obama is buddys (friend) with the owner of saturn so they never have to recall this unit i wish obama was my friend too sorry all you can do is take it back to dealership and they keep playing with your car to see who gets tired first i went to the dealership and they agree to pay half wich is 2100.00 dlls but no warranty that trans will run for long time like a regular trans s i change that trans for a 5 speed automatic AF23 AISIN JAPANESE they can do that but will cost them a lot of money so they just play around but i will never buy a saturn never

i have a saturn 2003 ion 3 cvt transmission this transmission is made in korea for saturn is a bad deal all around i took the trans cvt off and put a five speed af 23 japanesse trans in and it works great the cvt is a bad trans even if you fix it it will not work may work for 2 or 10 000 miles but there is no warranty the trans will stay running like a regular trans sorry but that wanta nbe trans is no good even saturn do not know wats wrong with it they should recall this trans but the satur factory owner is obamas buddy so they do not have to recall the transmission

Is your shifter like a "Free Bird?" No typical "H" like motion? If so, your shifter cable bushing has failed. This happened to me and all I heard was $300 to fix with a whole new set of cables and shifter assembly. This problem can be fixed for $40 with a little know-how and a replacement bushing, I can tell you where to get one if you haven't already paid too much.

Ritchie

John, I am not sure about your Toyota shifter. Sorry.

Im no mechanic, but I just went through this problem. Mine was a bad clutch cable, but Im sure there could be other causes. Good luck!