P1762 - Governor Pressure Sensor Offset Improper Voltage
P1763 - Governor Pressure Sensor Voltage Too High
P1756 - Governor Pressure Not Equal To Target At 15-20 PSI
Your automatic transmission pressure governor has higher pressure than
it should. This could be caused by a sticking selenoid, or a dirty
filter. When is the last time you changed the ATF and filter? If it's been a
while, I'd go that route first. Otherwise, a transmission shop may have
to perform a series of air pressure tests on the transmission.
Chrysler manual says:
GOVERNOR PRESSURE SENSOR
The governor pressure sensor supplies the transmission pressure input to
the Powertrain Control Module on circuit T25. Circuit T25 connects to
cavity B29 of the PCM. Circuit K6 from cavity B31 of the PCM supplies 5
volts to the sensor. The PCM provides ground for the govenor pressure
sensor on circuit K4. Circuit K4 connects to cavity A4 of the PCM.
The governor pressure sensor is part of the transmission solenoid assembly.
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
Remove screws holding pressure solenoid retainer to governor body.
Separate solenoid retainer from governor
Pull solenoid from governor body
Remove bolts holding governor body to valve body.
Separate governor body from valve body
Remove governor body gasket.
Remove retainer holding pressure sensor to governor body.
Pull pressure sensor from governor body
INSTALLATION
Before installing the pressure sensor and solenoid in the governor body,
replace O-ring seals, clean the gasket surfaces and replace gasket.
Lubricate O-ring on pressure sensor with transmission fluid.
Align pressure sensor to bore in governor body
Push pressure sensor into governor body.
Install retainer to hold pressure sensor to governor body.
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 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.
Keep us updated.
The parts replacement could find in THIS LINK: A500_42RE_44RE_44RH_42RH_Transmission_solenoids_sensors
I suggest check the next links:
- Jeep Secc-21S-Automatic-Transmission-42RE
- Transmission
- 42re Module
Hope this helps, good luck (and happy New year).
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Sounds like the shift solenoid for 1st gear is bad.. Just my educated guess. I hope someone helps you better than I
Yes you have two solenoids one for 1-2 and one for 3-4,i would recommend having both replaced.
TIM
I APOLOGIZE BEEN REAL BUSY,I WOULD TAKE OFF THE PAN THE SOLENOIDS ARE LOCATED AT THE REAR OF THE TRANS,TO FIND OUT WHAT TRANSMISSION LOOK AT THE TOP OR CALL THE DEALER WITH YOUR VIN AND ASK THEM.
TIM
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This didn't answer the questions I had. I was not planning on taking it in. They won't $400 to look at it. The questions I had were:
1) Will the governor pressure sensor / solenoid cause the transmission not to shift? 2) How do I determine which transmission I have to order parts? 3) I know I have to drop the pan to get to the components. But can you send a diagram of the components with the solenoid and sensor noted? 4) Should I change out the sensor / solenoid? Do you have any other suggestions?
The answer given did not apply to me.
Thank you for the help. We did the filter and fluid about a week ago and it did not help. The link is a good thing for lower cost. Do you have a diagram of the 42RE transmission component placement?
I hope it will work. I am going to replace the governor pressure sensor and solenoid...change the filter and fluid again and hope for the best. You were very helpful. If I do thios and it doesn't work, can you give me my next step?
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