Question about 2001 Dodge Ram 1500 Truck 2WD

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Po748 can tcc solenoid or vehicle speed sensor cause this code

1996 dodge ram 1500 5.2l v8 i have replaced governor pressure sensor, governor pressure solenoid, internal wiring harness and tcm. i hace checked for continuity, shorts to ground and shorts to power. i am still getting po748

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  • yadayada
    yadayada May 11, 2010

    time for a trip to the dealer, stop guessing.

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  • 8 Answers

One question? Did you clear the codes out of the system with a scanner? I believe that's the only way to do it now,unlike the old days when you could rest by disconnecting the battery. Hope this helps.

Posted on May 01, 2010

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1 Answer

2007 dodge ram 1500 4.7 how to fix converter from kicking in and out while driving ,at 55mph the tac goes from 1500 to 2000 rpm and then back to 1500 rpm while driving


Really needs to go on a scanner to see. But if you want to throw money at it.. Replace the TCC solenoid, governor pressure solenoid and governor pressure sensor. All these can cause it. Also when your down there, check the wires and plugs to them. Make sure they have good/tight connections. And check the plug going to the transmission for corrosion.

Sep 10, 2016 | Dodge Ram 1500 Cars & Trucks

1 Answer

How can I get my 2004 Dodge Ram 3500 5.9 48re out of limp mode?


http://www.cumminsforum.com/forum/911-urgent-situations/909314-p2769-p0973-2007-5-9-w-48re-limp-mode.html#/topics/909314?_k=cp8azv&nocache=1469908570493

this is for the Cummins but sounds like the issue you are having. Not sure why the voltage would go so low as to cause an issue...makes me suspect a failed component inside the tcm (assuming that is where the voltage comes from) causing low voltage to the circuts.

Jul 30, 2016 | Dodge Cars & Trucks

1 Answer

What does the code po748 refer to


Symptom:

P-0748 GOV PRESSURE SOL CONTROL/TRANS RELAY CIRCUITS

When Monitored and Set Condition:

P-0748 GOV PRESSURE SOL CONTROL/TRANS RELAY CIRCUITS

When Monitored: Continuously with the key on.

Set Condition: This code is set if the voltage detected on the Governor Pressure Solenoid

Control Circuit at the PCM is different than the expected voltage for 4.8 seconds.

POSSIBLE CAUSES

NO POSSIBLE CAUSES REMAINING

FUSED B(+) CIRCUIT OPEN

SOLENOID AND HARNESS ASSEMBLY DEFECTIVE

GOVERNOR PRESSURE SOLENOID DEFECTIVE

TRANSMISSION CONTROL RELAY DEFECTIVE

GOV PRESSURE SOLENOID CONTROL CKT SHORT TO GROUND

GOVERNOR PRESSURE SOLENOID CONTROL CIRCUIT OPEN

GOVERNOR PRESSURE SOLENOID WIRING HARNESS INTERMITTENT DEFECT

GOVERNOR PRESSURE SOLENOID WIRING HARNESS OBSERVABLE DEFECT

TRANSMISSION RELAY OUTPUT CIRCUIT OPEN

TRANSMISSION RELAY OUTPUT CIRCUIT SHORTED TO GROUND

PCM DEFECTIVE (GOV PRESSURE SOLENOID SHORT TO VOLTAGE)

PCM DEFECTIVE (RES IN RANGE)

PCM DEFECTIVE (GOVERNOR PRESSURE SOLENOID DEFECTIVE)

PCM DEFECTIVE (CONTROL CIRCUIT SHORTED)
PCM DEFECTIVE (SOLENOID & HARNESS ASSEMBLY DEFECTIVE)

Feb 03, 2012 | 1999 Dodge Dakota

1 Answer

2004 jeep code 1763 what to do


P1763 - Governor Pressure Sensor Voltage Too High

This code is refer for the governor pressure sensor which is located in the valve body of the transmission. If getting power to the sensor and the wires are not open or shorted then the sensor will need to be replaced.

GOVERNOR SOLENOID AND PRESSURE SENSOR
REMOVAL

Hoist and support vehicle on safety stands.
Remove transmission fluid pan and filter.
Disengage wire connectors from pressure sensor and solenoid (see picture)
Remove screws holding pressure solenoid retainer to governor body.
Separate solenoid retainer from governor (see picture)
Pull solenoid from governor body
Pull pressure sensor from governor body.
Remove bolts holding governor body to valve body.
Separate governor body from valve body
Remove governor body gasket.

INSTALLATION
Before installing the pressure sensor and solenoid in the governor body, replace O-ring seals, clean the gasket surfaces and replace gasket.

Place gasket in position on back of governor body
Place governor body in position on valve body.
Install bolts to hold governor body to valve body.
Lubricate O-ring on pressure sensor with transmission fluid.
Align pressure sensor to bore in governor body.
Push pressure sensor into governor body.
Lubricate O-ring, on pressure solenoid, with transmission fluid.
Align pressure solenoid to bore in governor body
Push solenoid into governor body.
Place solenoid retainer in position on governor
Install screws to hold pressure solenoid retainer to governor body.
Engage wire connectors into pressure sensor and solenoid Install transmission fluid pan and (new) filter.
Lower vehicle and road test to verify repair.

zjlimited_748.gif

1 - PRESSURE SOLENOID RETAINER
2 - GOVERNOR

zjlimited_749.gif

1 - PRESSURE SENSOR
2 - PRESSURE SOLENOID
3 - GOVERNOR


Hope helps.








Sep 29, 2011 | 2004 Jeep Grand Cherokee

1 Answer

My 2007 dodge with 5.9 diesel is showing engine malfunction light and error code of P1740, failed TCC or overdrive solenoid. The truck seems to run ok in overdrive but I don't understand what the TCC...


Code P1740-Torque converter clutch did not lock up when the PCM sent the command. Enabling conditions: No engine or transmissions codes are present, vehicle speed was under 70 MPH, TPS was under 33% open. When the PCM commanded the torque converter to lock, no change was detected in engine speed. Blocking action: This code can block the following monitors: none.

Testing: Check torque converter solenoid for proper operation.

NUMBER: 21-11-00
GROUP: Transmissions
EFFECTIVE DATE: October 02, 2000
SUBJECT: 46RE Transmission MIL Due To DTC P1740 - TCC or OD Solenoid Performance
OVERVIEW: This bulletin involves the replacement of the transmission pressure boost valve cover plate.
MODELS: 2000 - 2001 (AB) Ram Van 2000 - 2001 (AN) Dakota 2000 - 2001 (BR/BE) Ram Truck 2000 - 2001 (DN) Durango

NOTE: THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH A 46RE TRANSMISSION BUILT BEFORE AUGUST 01, 2000 (MDH O8O1XX).

SYMPTOM/CONDITION:
The customer may complain of a Malfunction Indicator Lamp (MIL) illumination. Upon further analysis, it is determined that the MIL is caused by Diagnostic Trouble Code (DTC) P1740 - Torque Converter Clutch (TCC) or overdrive solenoid Performance. Other than the MIL, the customer may not notice any other condition with the transmission.

This condition may be caused by an intermittent and momentary TCC disengagement condition. The transmission valve body pressure boost valve cover plate has been revised with a larger size orifice hole to address this condition.

NOTE: THE DRB III(R) MUST BE OPERATING AT RELEASE LEVEL 50.4 MDS2 SYSTEM CIS CD2067 OR HIGHER (AVAILABLE THE WEEK OF OCTOBER 2, 2000) IN ORDER TO PERFORM THE REVISED TORQUE CONVERTER CLUTCH STALL TEST. DO NOT USE EARLIER VERSION STALL TEST TO DETERMINE CONDITION OF THE TORQUE CONVERTER CLUTCH.

Here can find the test in pdf format: 2009-11-28_034958_1124.pdf

Hope helps.

Apr 28, 2011 | Dodge Ram 3500 Cars & Trucks

2 Answers

P1740 trouble code on a 2001 Dodge Ram 1500


There is one solenoid assy with two solenoids on it. One for the TCC and other for OD. in my experience, P1740 is caused by a couple of things. The torque converters are a subject of trouble for one - I always replace them - the other are the input sealing rings on the input shaft. Older designs leak pressure. Always replace with the plastic - **** end type which is the update today. P1740 has nothing to with the governor solenoid or sensor

Dec 06, 2008 | 1996 Dodge Ram 1500 Club Cab

1 Answer

My 2001 Dodge Ram 1500 keeps giving me trouble codes with the latest one being a P1740. The code before was for the governor sensor which i have had replaced both the governor sensor and the governor...


For a few years, at least in my area, there was a issue with the tcc solenoid. It involved not only replacing the solenoid( dropping the pan and unbolting from the valve body) but also flashing or updating the control module.once both repairs are complete you should have no problems. A good dealer will help you out.

Dec 06, 2008 | 2001 Dodge Ram 1500 Truck 2WD

1 Answer

Error codes


Her is the definition and a list of possiable causes.


Code P1740-Torque converter clutch did not lock up when the PCM sent the command. Enabling conditions: No engine or transmissions codes are present, vehicle speed was under 70 MPH, TPS was under 33% open. When the PCM commanded the torque converter to lock, no change was detected in engine speed. Blocking action: This code can block the following monitors: none.
Testing: Check torque converter solenoid for proper operation.
P1740 TCC O/D SOL PERFORMANCE (GAS)
Theory of Operation
The Torque Converter Clutch (TCC) Solenoid is used to engage the TCC which improves fuel economy.
When Monitored
The Torque Convertor Clutch (TCC) and Overdrive Clutch (OD) will be tested each time the PCM requests TCC engagement in 3rd gear and OD.
Set Condition
The DTC will set if the expected RPM drop is not achieved while attempting to engage TCC or OD. This indicates a malfunctioning torque convertor or overdrive clutch.
Possible Causes
* ENGINE DTCS PRESENT
* TRANSMISSION DTCS PRESENT
* TRANSMISSION TEMPERATURE TOO COLD
* OIL PAN CONTAINS EXCESSIVE DEBRIS
* 3-4 SHIFT SOLENOID
* SHAFT OR SEAL DAMAGE
* TCC SOLENOID
* TORQUE CONVERTER

Sep 25, 2008 | 2005 Dodge Ram 3500

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