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 Steve Your Own Question

Steve
Steve, Auto Service Technician
Category: Car
Satisfied Customers: 5494
Experience:  25+ yrs experience as a professional working technician; ASE L1 master technician
157173
Type Your Car Question Here...
Steve is online now
A new question is answered every 9 seconds

2001 Dodge Ram 2500: 4wd..transmission seems to be hunting overdrive

Customer Question

I got a 2001 Dodge Ram 2500 4wd. The transmission seems to be hunting overdrive at 45 to 50 mph. Any suggestions?

Optional Information:
2001 Dodge ram 2500 5.9 diesel

Already Tried:
Checked wiring connections battery, at trans. and pcm.





Submitted: 8 years ago.
Category: Car
Expert:  Steve replied 8 years ago.

Greetings!


You may want to check with your local Dodge dealer; I believe there is a PCM software upgrade to address this concern. The PCM can only be reflashed by a DRB-III scan tool with programming software; any Dodge dealer and some independent repair shops can do this for you.


One other possibility is a misadjusted throttle valve cable. Here is the procedure for verifying TV adjustment:


A correctly adjusted throttle valve cable will cause the throttle lever on the transmission to move simultaneously with the throttle body lever from the idle position. Proper adjustment will allow simultaneous movement without causing the transmission throttle lever to either move ahead of, or lag behind the lever on the throttle body.

ADJUSTMENT VERIFICATION



  1. Turn ignition key to OFF position.
  2. Remove air cleaner
  3. Verify that lever on throttle body is at curb idle position (Fig. 231). Then verify that the transmission throttle lever (Fig. 232) is also at idle (fully forward) position.
  4. Slide cable off attachment stud on throttle body lever.
  5. Compare position of cable end to attachment stud on throttle body lever

    • Cable end and attachment stud should be aligned (or centered on one another) to within 1 (0.039 inch) in either direction (Fig. 233).
    • If cable end and attachment stud are misaligned (off center), cable will have to be adjusted as described in TV Cable Adjustment procedure.


    1. Reconnect cable end to attachment stud. Then with aid of a helper, observe movement of transmission throttle lever and lever on throttle body.



      • If both levers move simultaneously from idle to half-throttle and back to idle position, adjustment is correct.
      • If transmission throttle lever moves ahead of, or lags behind throttle body lever, cable adjustment will be necessary. Or, if throttle body lever prevents transmission lever from returning to closed position, cable adjustment will be necessary.


  6. ADJUSTMENT PROCEDURE



    1. Turn ignition switch to OFF position.
    2. Remove air cleaner if necessary.
    3. Disconnect cable end from attachment stud. Carefully slide cable off stud. Do not pry or pull cable off.
    4. Verify that transmission throttle lever is in fully closed position. Then be sure lever on throttle body is at curb idle position.
    5. Pry the T. V cable lock (A) into the UP position (Fig. 233). This will unlock the cable and allow for readjustment.
    6. Apply just enough tension on the T. V cable (B) to remove any slack in the cable. Pulling too tight will cause the T. V. lever on the transmission to move out of its idle position, which will result in an incorrect T. V. cable adjustment. Slide the sheath of the T. V cable (D) back and forth until the centerlines of the T. V. cable end (B) and the throttle bell crank lever (C) are aligned within one millimeter (1mm) (Fig. 233).
    7. While holding the TX cable in the set position push the T. V. cable lock (A) into the down position (Fig. 233). This will lock the present T. V. cable adjustment. NOTE: Be sure that as the cable is pulled forward and centered on the throttle lever stud, the cable housing moves smoothly with the cable. Due to the angle at which the cable housing enters the spring housing, the cable housing may bind slightly and create an incorrect adjustment.
    8. Reconnect the T. V. cable (B) to the throttle bellcrank lever (C).
    9. Check cable adjustment. Verify transmission throttle lever and lever on throttle body move simultaneously.




I hope this is helpful; if so, an accept would be most appreciated! thanks!





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... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...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:

 
 
 
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
< Last | Next >
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
  • used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future. David L. Richmond, TX
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil Marysville, CA
  • Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible. Charles Walnut Creek, CA
  • As a single woman, I really appreciate an excellent and affordable opinion.
    Thank you Geordie, I will not hesitate to contact justanswer in the future!
    Sue Charleston, WV
  • Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff. Jim Castleberry, FL
  • Excellent reply, and also very quick. Really sounds like the Expert knows what he is talking about. I will be back to use your service when I need more help with my RV. Dutch USA
 
 
 

Meet The Experts:

 
 
 
  • Chris (aka-Moose)

    Technician

    Satisfied Customers:

    846
    16 years of experience
< Last | Next >
  • http://ww2.justanswer.com/uploads/MU/muddyford/2012-6-13_1204_1.64x64.png Chris (aka-Moose)'s Avatar

    Chris (aka-Moose)

    Technician

    Satisfied Customers:

    846
    16 years of experience
  • http://ww2.justanswer.com/uploads/TE/TedG/2012-6-15_14759_avaLarge.64x64.jpg Ted G.'s Avatar

    Ted G.

    ASE Certified Technician

    Satisfied Customers:

    1596
    20 years auto repair experience, ASE Master Tech, Mechanical Failure consultant, Expert Witness
  • http://ww2.justanswer.com/uploads/joecamel90/2008-11-13_03615_head_shot.jpg George H.'s Avatar

    George H.

    ASE Certified Technician

    Satisfied Customers:

    1311
    ASE Master Tech 15+ yrs, AAS Automotive Technology, Factory trained Asian specialist
  • http://ww2.justanswer.com/uploads/AM/amedee/2013-10-24_23656_Amedee1.64x64.jpg Amedee's Avatar

    Amedee

    ASE Master Tech

    Satisfied Customers:

    2367
    ASE Master Tech advanced level specialist
  • http://ww2.justanswer.com/uploads/SU/supermechanic/2013-8-23_03546_500.64x64.jpg Jerry's Avatar

    Jerry

    Master Mechanic

    Satisfied Customers:

    1906
    ASE master, 30+ years. All makes and models. Trouble shooter, shop forman, service manager
  • http://ww2.justanswer.com/uploads/CR/crzydrvr00/2013-11-3_12123_246347.64x64.jpg Richard's Avatar

    Richard

    ASE Certified Technician

    Satisfied Customers:

    942
    12 years Ford Lincoln/Mercury Jaguar dealership as a technician and shop foreman reparing all makes
  • http://ww2.justanswer.com/uploads/ST/Steve7654/2012-6-5_215929_japic800x660.64x64.jpg Steve's Avatar

    Steve

    Auto Service Technician

    Satisfied Customers:

    1980
    25+ yrs experience as a professional working technician; ASE L1 master technician
 
 
 
Chat Now With An Auto Mechanic
Steve
Steve
Service Manager/ Technician
1980 Satisfied Customers
25+ yrs experience as a professional working technician; ASE L1 master technician