Login|Contact Us
Question and Answer

Jeep

Ask a Jeep Question, Get an Answer ASAP!

  • Ask A Question
  • Browse Answers
  • Meet The Experts
  • How JustAnswer Works

1998 Grand Cherokee Laredo: check engine light..pressure sensor..volts

 
Donny's Avatar
  • Answered by:Donny
  • Shop Foreman
  • Positive Feedback: 100.0 %
  • Accepted Answers: 399
Verified Expert
in Jeep

Recent Feedback

Positive
I'm very impressed. This guy is good!
Positive
very helpful, i appreciated the information
Positive
he was great specially taking time on a holiday to give me a direction!!!!!...
Positive
Donny really helped me out!
Positive
Thanks
Positive
Thanks Donny! I had a 2007 copy. Thanks for the 2009 version. This is the...
Positive
Great Tech.....Very knowledgable
Positive
Thanks for your help. We think it's the multi-function switch as well. However,...

Customer Question

Hello, 1998 Grand Cherokee Laredo, check engine light-code: P1764, governor pressure sensor volts too low. How serious is that? One mechanic said it was a bad sensor, another said it was a bad transmission. Thanks.

 

Optional Information:
1998 Jeep Grand Cherokee V-6 4.0 liter

Already Tried:
After 1 mechanic from a national chain said it needed a new transmission, another mechanic from another national chain said it was just a bad sensor or connection. Neither are transmission specialists. In the past, the check engine light on other cars was not a big deal, so should I just take it to a transmission specialist or is everybody yanking my wallet? Again, the code is P1764. Thanks.

Submitted: 1692 days and 10 hours ago.
Category: Jeep
Value: $9
Status: CLOSED

Accepted Answer

Picture
Expert:  Donny replied 1692 days and 10 hours ago.

Hello

 

Most commonly this means that the governor pressure sensor and transducer need to be replaced,a volt code normally does not mean that there is a mechanical failure, normally this is a sensor issue

 

To replace

 

I use a fluid evacuator to pull the fluid out of the pan before I remove it so I don't spill it all over, if you do not have one be sure to leave one bolt in but loose on the side that you feel the fluid will drain from best and on the opposite side leave one bolt almost all the way in so as the pan comes loose it will tip to the other side and the fluid will poor out, than when removing the pan the rest of the way be careful since it will still be full of fluid

  • 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
  • Pull pressure sensor from governor body.
  • Remove bolts holding governor body to valve body.
  • Separate governor body from valve body
  • Remove governor body gasket.

    To avoid overfilling transmission after a fluid change or overhaul, perform the following procedure:

    1. Remove dipstick and insert clean funnel in transmission fill tube.
    2. Add following initial quantity of ATF +4, to transmission:
      1. If only fluid and filter were changed, add 3 pints (1-1/2 quarts) of ATF +4 to transmission.
      2. Apply parking brakes.
    3. Start and run engine at normal curb idle speed.
    4. Apply service brakes, shift transmission through all gear ranges then back to NEUTRAL, set parking brake, and leave engine running at curb idle speed.
    5. Remove funnel, insert dipstick and check fluid level. If level is low, add fluid to bring level to MIN mark on dipstick. Check to see if the oil level is equal on both sides of the dipstick. If one side is noticeably higher than the other, the dipstick has picked up some oil from the dipstick tube. Allow the oil to drain down the dipstick tube and re-check.
    6. Drive vehicle until transmission fluid is at normal operating temperature.
    7. With the engine running at curb idle speed, the gear selector in NEUTRAL, and the parking brake applied, check the transmission fluid level.

      CAUTION: Do not overfill transmission, fluid foaming and shifting problems can result.

    8. Add fluid to bring level up to MAX arrow mark.

      When fluid level is correct, shut engine off, release park brake, remove funnel, and install dipstick in fill tube.

    I hope that this helps

  •  

    if you need more information just let me know

     

    Thank you

     

    Donny

     

     

     

    Expert TypeShop Foreman
    Category: Jeep
    Pos. Feedback: 100.0 %
    Accepts: 399
    Answered: 8/17/2008

    Experience: A.S.E. Certified A1-A8,L1,X1,T1,T2 Over 25 years Experience with Chrysler - Dodge - Jeep

    Ask this Expert a Question >
     
    Tweet

    12 Jeep Mechanics are Online Right Now

    Ask Your Question Now
    Jeep Questions Date Submitted
    Grand cherokee laredo: I have an after market command starter 3/28/2013
    grand cherokee limited: i have the same problem with my jeep. 3/28/2013
    cherokee: 1997 jeep cherokee 4.0 wont start from key but can 3/28/2013
    4.7 liter v-8 jeep grand cherokee: my girlfriend was driving 3/28/2013
    grand cherokee: 2009 jeep grand cherokee w/3.7l engine had 3/27/2013
    grand cherokee: my daughter has a 2001 jeep grand cherokee, 3/27/2013
    cherokee sport: i have a 2000 jeep cherokee sport hand new 3/27/2013
    Jeep Liberty Limited: i use a 2003 jeep liberty. It gives me 3/27/2013
    RA-JM 3/27/2013
    jeep grand cherokee: hello I have a 03 jeep grand Cherokee 3/27/2013
    RSS
    Next 10 >
    Ask A Jeep Mechanic
    Type Your Jeep Question Here...
    characters left:

    Top Jeep Experts

    See More Jeep Mechanics

    In The News

    Nbc
    Washington Post
    New York Times
    Cnn
    Learn More

    How It Works

    • Ask an Expert
    • Get a Professional Answer
    • Ask Followup Questions
    • 100% Satisfaction Guarantee
    Learn More
    close
    Find Expert answers related to your question.
    Sign up using email
    We will never post anything without your permission.
    Already have an account? Sign in

    Ask a Jeep Mechanic

    Get a Professional Answer. 100% Satisfaction Guaranteed.
    191 Jeep Mechanics are Online Now
    Type Your Jeep Question Here...
    characters left:
    Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.
    Truste
    Contact Us | Terms of Service | Privacy & Security | About Us
    © 2003-2013 JustAnswer LLC