I am getting the P1762 code for the governor pressure transducer. I replaced the transducer and solenoid in Februaury 13 due to some shifting issues. Additionally I replaced the broke 3-4 spring and put in new fluid and filter. The trans shifts good, but the symptom is at starting from a dead stop (1st gear) it feels like no power. It is not jerking or anything like that I simply have to applyl more accelerator pedal to get it up to speed for it to shift into 2nd gear. I believe my original issue in February was simply a stretched TCV cable, I wonder if this is the case again. I already disconnected the downstream O2 sensor and that made no difference. What do you think stretched cable?

 

When you replaced the transducer and governor solenoid, Did you use mopar parts? Maybe you are starting off in a higher gear and not 1st. Move the shifter into low. does it have power when taking off? Also you may want to replace the output speed sensor too.

 

I used the borg warner pressure solenoid, gold pressure sensor, governor housing base gasket, 3-4 accumulator spring all at the same time. Looks like the VSS is cheap, I will replace that tomorrow and report back.

No opinions on a stretched cable? I only ask because shift timing seems accurate, but I know this also controls the pressure via the tranny valve body.

 

drove to work this morning - you are right master tech; it is starting in 2nd gear and when I switch to manually to first it has plenty of power. I will replace the VSS tonight and report back. If that's not the culprit what should I look at next?

 

on the way to work the CEL never came on until I parked it at work. Reset it with scanner and it was fine all the way home. Replaced the VSS here:
http://www.flickr.com/photos/12758731@N08/10145597545/
rear of trans right before the transfer case.
Here is the old one:
http://www.flickr.com/photos/12758731@N08/10145717873/
what is this one right above the pan's edge:
http://www.flickr.com/photos/12758731@N08/10145678876/
I got an immediate CEL and reset it. Drove it around a couple miles until I got home and put it in nuetral to check the fluid level - CEL (same code) I know it is a learning computer so I will see how it does tomorrow on the 20 miles to and from work. I am convinced it does not need a rebuild; mechanically it is sound, if I can keep the CEL off and out of limp mode. Any thoughts on that other sensor? The one I replaced is a 2-wiire, so I know I replaced the right one. The other is a 3-wire, but wtf is it?

 

The debris the sensor is not got. Here is some information.

Symptom:
P-1762 GOV PRESS SEN OFFSET VOLTS TOO LO OR HIGH
When Monitored and Set Condition:
P-1762 GOV PRESS SEN OFFSET VOLTS TOO LO OR HIGH
When Monitored: Continuously with the key on and engine running.
Set Condition: A fault condition is identified if the governor pressure is out of range in
park or neutral for 1.3 seconds. The code will be set after three consecutive bad tests.
POSSIBLE CAUSES
5-VOLT SUPPLY CIRCUIT OPEN
GOVERNOR PRESSURE SENSOR WIRING HARN INTERMITTENT
GOVERNOR PRESSURE SENSOR GROUND CIRCUIT OPEN
PARK/NEUTRAL SWITCH
PARK/NEUTRAL SWITCH NOT OPERATING CORRECTLY
GOVERNOR PRESSURE SENSOR HARNESS INTERMITTENT
GOVERNOR PRESSURE SENSOR HARNESS
TRANSMISSION FLUID EXCESSIVE DEBRIS
TRANSMISSION FLUID PROBLEM
TEST ACTION APPLICABILITY
1 Ignition On, Engine Not Running.
Using the DRB, read DTC’s.
Is the DTC specific good trip displayed?
All
Yes ® Go To 2
No ® Go To 10
2 This code is present at this time.
Start Engine and allow to warm up.
Check Fluid level and condition of Fluid.
Was fluid condition and level OK?
All
Yes ® Go To 3
No ® Repair fluid level and/or condition of bad fluid and retest.
Perform Powertrain Verification Test VER-5A.
3 Start Engine and allow to warm up.
With the DRB, check Park/Neutral Switch for proper operation.
Was Park/Neutral operation OK?
All
Yes ® Go To 4
No ® Repair as necessary.
Perform Powertrain Verification Test VER-5A.
577
TRANSMISSION
TEST ACTION APPLICABILITY
4 Start Engine. Let Engine idle in park or neutral for 3 minutes.
Place vehicle in neutral.
With the DRB, read the Governor Pressure Sensor voltage.
Was the voltage between 0.3 and 0.76 volts?
All
Yes ® Go To 10
No ® Go To 5
5 Check and record the Freeze Frame data.
Ignition On, Engine Not Running.
Disconnect the Trans Solenoid Connector.
Note: Check connectors - Clean/repair as necessary.
Using a voltmeter, measure voltage at the 5-Volt Supply Circuit in Trans Solenoid
Connector.
Was voltage above 4.5 volts?
All
Yes ® Go To 6
No ® Repair open 5-Volt Supply Circuit.
Perform Powertrain Verification Test VER-5A.
6 Start Engine.
While monitoring Governor Pressure Sensor voltage, wiggle the wires between the
PCM and the Solenoid Connector.
Did the Governor Pressure Sensor voltage fluctuate while wiggling the wires?
All
Yes ® Repair Wiring where wiggling caused the fluctuation.
Perform Powertrain Verification Test VER-5A.
No ® Go To 7
7 Ignition Off.
Disconnect the Trans Solenoid Connector.
Disconnect the PCM Connector.
Note: Check connectors - Clean/repair as necessary.
Using an Ohmmeter, measure the resistance of the Sensor Ground Circuit from the
PCM Connector to the Solenoid Connector.
Was the resistance below 5.0 ohms?
All
Yes ® Go To 8
No ® Repair open Sensor Ground Circuit.
Perform Powertrain Verification Test VER-5A.
8 Ignition On, Engine Not Running
Check freeze frame data to determine the conditions when the code set.
With the DRB, clear DTCs.
Start Engine. Let Engine idle in park or neutral for 3 minutes.
Did code come back after 3 minutes of engine idling?
All
Yes ® Go To 9
No ® Go To 10
578
TRANSMISSION
P-1762 GOV PRESS SEN OFFSET VOLTS TOO LO OR HIGH — Continued
TEST ACTION APPLICABILITY
9 Ignition Off.
Replace the Governor Pressure Sensor.
Perform Verification Test VER-5A.
Check Pan and/or Filter for excessive debris while changing Sensor.
Does the pan and/or filter contain excessive debris?
All
Yes ® Repair cause of excessive debris.
Perform Powertrain Verification Test VER-5A.
No ® Test Complete.
Perform Powertrain Verification Test VER-5A.
10 Ignition On, Engine Not Running
With the DRB, check the Park/Neutral Switch State for proper operation.
Was Park/Neutral operation OK?
All
Yes ® Go To 11
No ® Repair Park/Neutral Switch System as necessary.
Perform Powertrain Verification Test VER-5A.
11 Ignition On, Engine Not Running
While monitoring governor pressure voltage with DRB, wiggle the Wiring and
Connectors between the Governor Pressure Sensor and the PCM.
Did the voltage fluctuate while wiggling the Harness?
All
Yes ® Repair Wiring where wiggling caused the fluctuation.
Perform Powertrain Verification Test VER-5A.
No ® Go To 12
12 At this time, the condition required to set the code is not present.
Using the DRB, go to the freeze frame screen. Make sure the 9caused by DTC9 P code
matches the code on the DTC screen. Use this information for added diagnostics to
help determine the conditions when the code was set.
Using the schematic as a guide, inspect the Wiring and Connectors.
Were any problems found?
All
Yes ® Repair as necessary.
Perform Powertrain Verification Test VER-5A.
No ® Test Complete.

 

what is the sensor in the lower picture? it is directly above the pan

EDIT: I think it is the nuetral safety switch. Can anyone confirm (3 wire)

 

Yep, park/neutral switch.

 

The bottom one looks like the park-neutral safety/ backup light sensor. One wire for the safety and 2 for the backup lamps.

 

no issues at all yesterday. Drove to work this morning - same problem - same CEL. I am going to change the park/nuetral switch tonight and see what happens tomorrow. If issue persists i will probably do a fluid and filter change; check the screen on the governor pressure sensor while I have the pan off.