How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Donny Your Own Question
Donny, Shop Foreman
Category: Jeep
Satisfied Customers: 828
Experience:  A.S.E. Certified A1-A8,L1,X1,T1,T2 Over 25 years Experience with Chrysler - Dodge - Jeep
Type Your Jeep Question Here...
Donny is online now
A new question is answered every 9 seconds

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

Resolved 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.
Submitted: 8 years ago.
Category: Jeep
Expert:  Donny replied 8 years ago.



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, Shop Foreman
    Category: Jeep
    Satisfied Customers: 828
    Experience: A.S.E. Certified A1-A8,L1,X1,T1,T2 Over 25 years Experience with Chrysler - Dodge - Jeep
    Donny and 3 other Jeep Specialists are ready to help you

    JustAnswer in the News:

    Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
    Web sites like
    ...leave nothing to chance.
    Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
    Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
    I will tell you that...the things you have to go through to be an Expert are quite rigorous.

    What Customers are Saying:

    • Thank you so much for your answer. My initial estimate was $325; I got it done for $100 - part and labor. Lynn B. Ormond Beach, FL
    < Previous | Next >
    • Thank you so much for your answer. My initial estimate was $325; I got it done for $100 - part and labor. Lynn B. Ormond Beach, FL
    • I was skeptical at first but thought I'd give it a try. I was pleasantly surprised. Your site actually is a quality service that I would recommend to others in a heartbeat. Stan Sayre, PA
    • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
    • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
    • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
    • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
    • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY

    Meet The Experts:

    • Chris


      Shop Foreman

      Satisfied Customers:

      Jeep Certified Master Tech
    < Last | Next >
    • Chris's Avatar


      Shop Foreman

      Satisfied Customers:

      Jeep Certified Master Tech
    • Mark's Avatar


      22 Year Factory trained technician

      Satisfied Customers:

      Jeep factory training........25 years in the industry.
    • Dave's Avatar


      Jeep Master Tech

      Satisfied Customers:

      Chrysler Triple Master, ASE master Tech AA degree in Auto.
    • moparfl's Avatar


      ASE Certified Technician

      Satisfied Customers:

      ASE Master Tech Chrysler Dodge Jeep Master Tech
    • Tim Mohr's Avatar

      Tim Mohr


      Satisfied Customers:

    • Ron Z.'s Avatar

      Ron Z.

      - Jeep Tech -

      Satisfied Customers:

      18+yrs experience. State Inspector & Jeep Diagnostics/Repair
    • jeepmopar76's Avatar


      Jeep/Chrysler Triple Master Tech

      Satisfied Customers:

      32yr ASE Master Tech, 9yr Chrysler Master Tech, 19 yr Jeep Dealership service including AMC/Eagle