Question about 1999 Jeep Grand Cherokee

3 Answers

1999 Jeep Grand Cherokee Laredo 4.0 liter six cylinder automatic transmission 2WD The Jeep will not shift out of first unless it is warm. There are three codes shown: P1762, P1763, P1756 (Ibelieve akll have to do with the governor pressure sensor / solenoid in the transmission) I have already changed the fluid / filter and it did not help. It was real clean for 125K miles 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?

Posted by on

  • 2 more comments 
  • mmmanddinfl Dec 30, 2010

    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?

  • mmmanddinfl Dec 31, 2010

    The answer given did not apply to me.

  • mmmanddinfl Dec 31, 2010

    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?

  • mmmanddinfl Jan 01, 2011

    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?

×

3 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Jeep Master
  • 17,970 Answers

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.

Posted on Dec 31, 2010

×

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 10,319 Answers

Sounds like the shift solenoid for 1st gear is bad.. Just my educated guess. I hope someone helps you better than I

Posted on Dec 31, 2010

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 750 Answers

Yes you have two solenoids one for 1-2 and one for 3-4,i would recommend having both replaced.











TIM

Posted on Dec 30, 2010

  • timothy hester
    timothy hester Dec 31, 2010

    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

×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Ok my 2001 Grand Cherokee Laredo wont stay in park


Transmission sticks in reverse- won't go into park. - JeepsUnlimited

www.jeepsunlimited.com/forums/showthread.php?...won-t-go-into-park
Jun 14, 2013 - 12 posts - ‎5 authors 2003 6 cyl 4x4 Grand Cherokee Laredo automatic- Occaionally, when shifting from REVERSE TO PARK, my Jeep will stay in reverse. Typically its ... '2001 WJ'4,0L'42RE'NV 242'380000 km'ECE Compliant' ??????????? ??? ...

2001 jeep grand Cherokee laredo - CarGurus

www.cargurus.com > Questions > Jeep > Grand Cherokee
CarGurusJan 27, 2014 - 2001 jeep grand Cherokee laredo - Just purchased a 2001 Jeep GrandCherokee Laredo and ... It starts in PARK sometimes and sometimes it won't and I have to start it in Neutral. ... Hatch shuts flush, but won't stay shut. help!

Oct 22, 2015 | Cars & Trucks

2 Answers

Fireing order diagram


cylinder firing order is: is 1-5-3-6-2-4 .... In Jeep Grand Cherokee Laredo ...Happy motoring.

Sep 04, 2014 | 1996 Jeep Grand Cherokee

1 Answer

Tengo una Jeep Grand Cherokee Laredo del2003. cuando cambio de direccion para el aire frio o caliente solamente sale hacia el parabrisas.


google translated, work pretty good.
I have a Jeep Grand Cherokee Laredo del2003. when change of direction for the cold or hot air only goes toward the windshield.

bad HVAC controls.
first check all fuse.

Oct 29, 2013 | 1999 Jeep Cherokee Grand 2WD

1 Answer

1999 jeep grand cherokee laredo v6 4x4 won't fire on all 6 cylinders just 4 why?


Plenty of causes. Plugs, valves. rings, numerous electronic/electrical faults. Diagnose vehicle and eliminate problems one by one.

Oct 30, 2012 | 1999 Jeep Grand Cherokee

1 Answer

Replaced transmission seal then on 2 different occasions going down highway at bout 65 to 70 miles hour transmission kept shifting btween overdrive n drive come to a stop n take off didnt do it again...


Computer controlled transmissions can get confused at times, from my personal experience. If the problem doesn't happen again, I would ignore it. If it happens all the time, it's most likely the transmission computer. Other things could be the shift linkage, engine vacuum leak, speed sensor, etc... Hope this helps.

Sep 27, 2010 | 1999 Jeep Grand Cherokee

2 Answers

Jeep 4.0 firing order


1999 Jeep Cherokee 4WD 4.0 liter L6 VIN "S"

71cf96f.gif

Hope this helps (remember rated this).

Aug 09, 2010 | 1998 Jeep Cherokee

1 Answer

Automatic transmission problem


Is this car a six or eight cylinder?
If the car has a kickdown cable check the adjustment.

Oct 29, 2008 | 1993 Jeep Grand Cherokee

Not finding what you are looking for?
1999 Jeep Grand Cherokee Logo

1,227 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

75797 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22114 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8152 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...