Question about 2002 Dodge Neon

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How do I check my torque converters? Where are they located? My car is an automatic transmission. Can you include pictures or diagrams to help me out? Please help.

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  • brdgtrmbrt Jul 24, 2010

    thank you you were very helpful . I will try this

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Your vehicle has only one torque converter and this large transmission component is located right in between the engine and transmission. If you suspect the convertoer is bad, you will need to run a battery of pressure tests on the transmission,with special fittings and gauges that most people do not have. An removal of thr transmission is required for replacement.
I seem to think that you may be refering to the TC or shift solenoids that are components inside the transmission that are replaced on occasion and are monitored by the PCM. These components look like this and are mounted in the valvebody assembly.




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Posted on Jul 18, 2010

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the torque converter is inside the bell housing which is connected to the front of the transmission, down low, near the back of the engine. A symptom of a torque converter going bad is the vehicle stalling when selecting a forward gear, reverse gear or slowing down to a full stop. This happens because it is in lock-up mode meaning that the clutches will not release and will not transfer the power as it should. It is the same effect as driving a vehicle with a manual transmission and not pushing in the clutch pedal when coming to a stop. Conversely it is equivalent to starting off in a higher gear in a vehicle with a manual transmission and not reving the engine.

Go to this link to learn more http://www.ehow.com/how_5197449_tell-torque-converter-bad.html

J.

Posted on Jul 18, 2010

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How to fix


P0741 Torque Converter Clutch Circuit Performance or Stuck Off OBD-II Trouble Code Technical Description Article by Dan Weller ASE Certified Master Technician Torque Converter Clutch Circuit Performance or Stuck Off This diagnostic trouble code (DTC) is a generic OBD-II powertrain code. It is considered generic because it applies to all makes and models of vehicles (1996-newer), although specific repair steps may vary depending on the model. What does that mean? Modern vehicles equipped with automatic transmissions / transaxles use a torque converter between the engine and transmission to increase the engine torque output and drive the rear wheels. The engine and transmission are actually connected by a fluid coupling mechanism inside of the torque converter which is what multiplies the torque until the speeds equalize and create a "stall" speed where the difference in actual engine RPM and transmission input RPM is around 90% efficient. Torque converter clutch (TCC) solenoids commanded by the Powertrain control module/Engine control module (PCM/ECM) or the Transmission control module (TCM) to direct hydraulic fluid and engage the torque converter clutch to create a solid coupling and increase efficiency. The transmission control module has detected a fault with the circuit that operates the torque converter clutch solenoid. Note: This code is similar to codes P0740, P0742, P0743 and P0744. There may be other diagnostic trouble codes associated with the transmission control module that can only be accessed by using an advanced scan tool. If any additional transmission related DTC's appear in addition to the P0741, an electrical failure is likely. Symptoms Symptoms of a P0741 trouble code may include: Performance or Stuck Off Indicator Lamp (MIL) illuminated (a.k.a. Check Engine Light) Minimal decrease in fuel economy, this will not affect engine performance Potential Causes Causes of this DTC may include: Wiring harness to transmission shorted to ground Torque converter clutch (TCC) solenoid internal short Transmission control module (TCM) Diagnostic Steps for P0741 DTC Wiring harness - Check transmission wiring harness for damage or loose connections. Use a factory wiring diagram to locate the appropriate power source and all connection points between circuits. The transmission may be powered by a fuse or relay, and triggered by the TCM. Disconnect the transmission harness at the transmission connector, power source and TCM. Check for a short to ground inside the transmission internal wiring harness by locating the appropriate + and - pins for the torque converter clutch solenoid. Using a digital volt ohm meter (DVOM) set to ohms scale, check for a short to ground in the circuit with the positive lead on either pin and the negative lead to a known good ground. If resistance is low, suspect a short to ground the internal harness or the TCC solenoid - removing the transmission oil pan may be necessary to further diagnose the TCC solenoid. Test the wiring between the TCM and the wiring harness connector at the transmission case using the DVOM set to ohms. Check for a possible short to ground by moving the negative lead on the DVOM to a known good ground, resistance should be very high or over limit (OL). Torque converter clutch (TCC) solenoid - Check the resistance in the TCC solenoid and internal transmission wiring at the transmission case after removing the transmission harness plug (if applicable, some makes/models use a TCM bolted directly to the transmission case). Some makes/models use a transmission wire harness with the TCC solenoid and internal harness as a single unit. Using the DVOM set to ohms, check for a short to ground with the positive lead on either circit to the TCC and the negative lead on a known good ground. Resistance should be very high or over limit (OL), if it is low, suspect a short to ground. Check for voltage on the power side circuit of the TCC solenoid or at the wire harness connector at the TCM with the DVOM set to volts scale, positive lead at the wire being tested and the negative to a known good ground with the vehicles key on/engine off, battery voltage should be present. If no voltage is present, determine the loss of power back through the circuit using the manufacturers wiring diagrams for reference. Transmission control module (TCM) - Since the torque converter clutch is only activated during certain driving conditions, it will be necessary to monitor the TCM with an advanced scan tool to determine if the TCM is commanding the TCC solenoid and what the actual feedback reading is at the TCM. The TCC solenoid is normally controlled by a duty cycle to engage a more comfortable torque converter cluch engagement. To test if the TCM is actually sending the signal, a graphing multimeter set to duty cycle or a digital storage oscilloscope will be required as well. The positive lead is probed into the wiring harness plugged into the TCM and the negative lead to a known good ground. The duty cycle shold be the same as being commanded by the TCM in the advanced scan tool reading. If the cycle stays at 0% or 100% or is intermittent, re-check connections and if all wiring / solenoid is OK, the TCM may be at fault.

Read more at: http://www.obd-codes.com/p0741
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May 16, 2015 | Cars & Trucks

1 Answer

1995 Oldsmobile cutlass ciera automatic transmission not shifting(109,500 miles, 3.1 liter V6). The three shift Solenoids were replaced, all under dash fuses were checked, the ECM/ECU was replaced. Fluid...


I would say to go to Autozone.com and register your vehicle for free wiring and fuse box diagrams.

Then do a dedicated search of the diagnostic plug to the ECM. There is also the possibility of a bad Torque converter.

There should be a pressure port the mechanic can test to see what the Torque converter is doing. Before the shift solenoids can work, they need pressure to turn the transmission. The Torque converter will likely not show up on an electric test, except for its Lockup device. The Torque Converter is simply a Hydraulic pump that needs to work for the transmission to turn normally.

Oct 20, 2012 | Cars & Trucks

2 Answers

Where is tcc location


The TCC is the "torque converter clutch and it is part of the torque converter, the solenoid that turn it on is inside the transmission attached to the valve body under the transmission pan.

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1 Answer

Location of the torque converter clutch silonoid on a 2001 chevy venture


TORQUE CONVERTER CLUTCH SOLENOID IN THE SIDE PAN OF THE TRANSMISSION. IN THE VALVE BODY.YOU NEED A VALVE BODY DIAGRAM.YOU HAVE MORE THAN ONE SOLENOID IN TRANSMISSION VALVE BODY. GET THE CHEVROLET DEALERSHIP PARTS DEPARTMENT SALESPERSON SHOW YOU DIAGRAM ON HIS COMPUTER THAT WAY IT WILL GIVE YOU IDEA ITS LOCATION ON THE VALVE BODY.

Jan 10, 2011 | 2001 Chevrolet Venture

1 Answer

1997 Mazda Capeller GF GFEP. Automatic Transmission problem.


test pressure but i'm pretty sure your torque converter needs replacement

Jul 03, 2010 | 1997 Mazda 626

2 Answers

MY 2003 ACURA SE LIGHT CAME ON MY NEIGHBOR HAD A TESTER IT SHOWED P0740 TCC MALFUNCTION WHAT DOES THIS MEAN?


Torque Converter Clutch. It has to do with the transmission. It could be a small issue such as a trans. fluid and filter change. Or could be the solenoid failing. At worst, the torque converter is shot...transmission failure.

Apr 09, 2010 | 1999 Acura CL

1 Answer

How much fluid does a 99 sonata v6 trany hold


8.2 Quarts
Application:
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Total refill (includes torque converter

Transmission Fluid Type
Application:
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Note :
Castrol Import Multi Vehicle ATF
Castrol High Mileage ATF
Maxlife ATF Dex/Merc Transmission Fluid Type GL-4,GL-5
Application:
With manual transmission

Note :
Weight = 75W-85W

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1 Answer

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Your transmission should still work if the solenoid goes bad. It will just shift funny

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1 Answer

Leaking fluid in transmission


I assume u have an automatic trans., there are 2 types for that year, model 41TE, which to drain and fill for a trans fluid change is 4 qts, not including what's in the torque converter, and model 31th (14 bolt fluid pan) which holds 8.9 qts including the torque converter. Interesting how my source gave one w/ torque con. one w/out.

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1 Answer

Mazda 626 1992 2litre dohc timing case oilseal


there ar two oil seals on your vehicle one is located behind crankshaft pulley and the other is located at rear input shaft to transmission you will need to remove your crankshaft pulleys including pulley boss or transmission and flywheel and torque converter if automatic to change seals are fairly cheap and easy to remove just follow steps in repair manual from local parts store. Or take it to a shop lol.

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