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TRNW TECH TIP
OF THE MONTH!
Bad solder joints on the internal harness are common!
Watch out for bad solder joints on the internal ribbon harness!
A4CF2 Ribbon Harness (click to enlarge)

A4CF2 Solenoid Codes!
Apparently this is a common issue on these transmissions. The solder cracks at the internal wiring harness connector. You have to look closely for it as it's somewhat hard to see. Their are two harnesses in the trans. The solder breaks on the harness with the connector, but we replaced both. On this particular vehicle it was intermittent, but when the code set it was a hard code that would not clear.
D82444E Harness w/connector
D82446E Internal harness . - more

INDUSTRY NEWS!

  • Solve multiple line pressure and converter-related problems in GM 6T40/45/50 (Gen. 1) transmissions with the new Sonnax oversized pressure regulator valve kit. Featuring upgraded materials to combat premature wear, this kit effectively restores hydraulic integrity, delivering proper line pressure control in all ranges.

  • Valve Body Pro is proud to introduce their latest innovation: Rebuilt Solenoid Blocks for the 5R55N/W/S, with an additional option for solenoid repair kits with Maxx Fluxx SOLPRO rebuild kits.

  • Seal Aftermarket Products now has the complete overhaul kit for the U250E series transmission with year coverage 2005-2009. Click here for more information

  • Superior now offers a valve body upgrade kit for all 6 solenoid KM's! Part #: STL-175-6. Click here for more information

  • GM 6T40/45/50 (Gen. 1) transmissions often exhibit various trouble codes and shift irregularities related to the transmission electro-hydraulic control module (TEHCM). Salvage the TEHCM while effectively restoring normal switch operation, eliminating codes and providing renewed shift performance with the new Sonnax pressure switch rebuild kit. No special tools required!

  • Raybestos unveils superior friction plate for Honda transmissions! Click here for more information!

  • Adapt-A-Case has several new products to help make our life easier! Click here for more information!

  • Seal Aftermarket Products now has the complete overhaul kit for the AW TF 80SC series transmission with year coverage 2006-up. Click here for more information

  • Superior has introduced an extra thick valve body separator plate for 4R70W & 4R75W! Click here for more details!

  • Restore hydraulic integrity for renewed TCC, lubrication and cooler operation with these two new Sonnax oversized TCC control valve kits.
      * Fits Ford 6F35 units
      * Fits GM 6T40/45/50 units

  • Seal Aftermarket Products now has the complete overhaul kit for the ZF5HP19/FL/FLA series transmission with year coverage 1996-up. Click here for more information

  • Superior Transmission Parts is proud to announce their new A618 / 48RE LOW & REVERSE SUPER SERVO! Click here for more info!

  • Adapt-A-Case is proud to introduce their new jack adapter for 6T70 and 6F50 transmissions! Click here for more information!

  • Seal Aftermarket Products now has the complete overhaul kit for the ZF6HP26 series transmission with year coverage 2001-up. Click here for more information

  • G-TEC proudly announces our optional filter system for all TurboTank and G-TEC heated cooler line flushers in a ready to install kit form. Click here for more information

  • Engineered to perform to OE specification and protect against premature wear, the new Sonnax oversized clutch boost valve restores proper hydraulic control for trouble-free shifting in GM 6T40/45/50 (Gen. 1) units.

  • Seal Aftermarket Products now has the complete overhaul kit for the HONDA/ ACURA (Vue 2004-Up) 4 SHAFT, 5 SPEED series transmission with year coverage 2003-Up. Click here for more information

  • Tackle multiple drivability concerns in GM 6T70/75 (Gen. 1) units with the new Sonnax 4-5-6 accumulator piston kit. Featuring an O-ring for positive sealing and upgraded materials to protect against premature wear, this kit is easy to install with no machining or special tools required!

  • Seal Aftermarket Products now has the complete overhaul kit for the VW09M series transmission with year coverage 2006-up. Click here for more information

  • Renew line pressure performance in Ford 6F50/55 and GM 6T70/75 (Gen. 1) units with the new Sonnax isolator valve spring which is shot-peened to eliminate premature failure. No special tools required!

  • Adapt-A-Case now offers a universal spring compressor! Click here for more information on the Every Buddy!

  • Become a TRNW Member More Information


    WHAT IS TRNW?

      TRNW, Transmission Rebuilders Network Worldwide is an international network of transmission technicians, transmission rebuilders, and transmission shop owners who discuss every aspect of running a transmission repair facility. TRNW members interact on everything from rebuilding tips, diagnostic help, troubleshooting, parts locating, and the art of operating and managing a full-service transmission shop.

      TRNW is like having hundreds of transmission rebuilders at your door step to answer your questions. No job is too difficult! TRNW members unite together to help solve the most complicated problems from today's complex, fully electronic, automatic transmissions. Join TRNW today and see what your missing! It's like a seminar in your mail box every day!

      TRNW has the most active and the most informative tech forum in the transmission industry! Our members rave about how great our service is, and you will too! Be sure to join TRNW today!

    Becoming a TRNW member is Easy and Safe! We use the latest "Verisign" secure encryption technology available. View our Privacy Policy, and our Refund Policy. All participants of this group must agree to the terms of our Terms of Use Agreement.

    WEBSITE FEATURES;

  • Fix Database with over 6,500 real life fixes & growing daily. Recently updated to the 3-C's format!

  • Four very active e-mail forums for technical help & management issues.

  • Complete e-mail forum archives from 1997 to current year.

  • Technical Service Bulletins

  • Tech Tips for most every transmission model

  • Wave Form Library

  • Scanner Movie Uploads

  • TesTech™ Technical Lessons

  • R&R Tips

  • Hard to Find Part Numbers

  • Diagnostic Help Database

  • Transmission Identification Info

  • Real Time Chat Room

  • Shop Referral Service

  • Special Tool Loaner Program

  • Shop Management System

  • FREE website for all members!

  • Spam Free Environment

  • Real industry professionals that are ready willing & able to help you!

    new feature!INTERACTIVE TECH TIPS & TECH DATA

    TRNW has just introduced a new feature to their website which allows technicians to add rebuilder tips, picture tips, and technical data for every transmission model. Members can vote on each rebuilder tip or picture tip with the results determining the placement of the tip. There is also an option for adding a comment to each rebuilder tip, and error control is built into the whole package allowing members to delete any tip that they created.

    Technical Data such as application charts, checkball locations, torque specifications, etc can now be added to the website by the members, and rebuilder "cheat sheets" can be printed out for technicians to take to the bench. A cheat sheet can be created, edited, and saved by each member by selecting from the list of current rebuilder tips, picture tips, and technical data for the desired transmission. The output is formatted nicely for printing.

    new feature!UPDATED
    FORUM ARCHIVES

    The TRNW Forum Archives have recently been updated to provide for improved search capabilities. Easily display all threads for any particular transmission type, a date range, or even a certain author. Search topics, responses and fixes for keywords to easily find relative threads. see more

    MORE INDUSTRY NEWS

  • TRNW now offers the complete line of Sonnax specialty tools at the lowest prices you will find anywhere! Click here to shop for Sonnax Specialty Tools in the TRNW E-Store!

  • Seal Aftermarket Products now has the complete overhaul kit for the 6R60, 6R75W, 6R80 series transmission with year coverage 2006-up. Click here for more information

  • Adapt-A-Case now offers a transfer case support for 48RE to prevent OD housing breakage!. Click here for more information

  • G-Tec has introduced a new data acquisition system for their cooler flushers that allows you to printout a snapshot of the flusher data. Click here for more information

  • Seal Aftermarket Products now has the complete overhaul kit for the Chrysler 62TE series transmission with year coverage 2007-up. Click here for more information

  • What's happening around the network

    TRNW Member Count;
    Active Members:          837
    Inactive Members:       1278


    Total Members:         2115

    Vehicles fixed in 2013:
    639 Transmissions fixed with 11,476 replies to those problems

    New exclusive feature! Locate a TRNW Member Shop!

    Fix Posted: 10/24/2014
    Complaint: 5R55E, No reverse and no upshift in drive after overhaul
    Posted Fix: Replaced the valve body
    Click here to read the entire thread!
    A Recent Problem:
    Problem Posted: 9/8/2014
    Subject: AS68RC, Codes P0796 and P1451
    Number of Replies: 17
    Click here to reply to this problem
    Click here to read the entire thread!
    Total Number of Fixes in our Fix Database:

    7957 Fixes

    Posts to our E-mail Forums;

    Previous Year, 2013;
    TRNW-1: 15,165 Messages
    TRNW-2: 22,833 Messages
    TRNW-3: 2,707 Messages
    TRNW-4: 4,950 Messages

    September, 2014;
    TRNW-1: 1003 Messages
    TRNW-2: 1,550 Messages
    TRNW-3: 192 Messages
    TRNW-4: 97 Messages

    August, 2014;
    TRNW-1: 952 Messages
    TRNW-2: 1,476 Messages
    TRNW-3: 198 Messages
    TRNW-4: 127 Messages

    July, 2014;
    TRNW-1: 609 Messages
    TRNW-2: 1,181 Messages
    TRNW-3: 19 Messages
    TRNW-4: 114 Messages

    June, 2014;
    TRNW-1: 1,002 Messages
    TRNW-2: 1,534 Messages
    TRNW-3: 123 Messages
    TRNW-4: 53 Messages

    May, 2014;
    TRNW-1: 762 Messages
    TRNW-2: 1,334 Messages
    TRNW-3: 124 Messages
    TRNW-4: 59 Messages

    April, 2014;
    TRNW-1: 590 Messages
    TRNW-2: 1,043 Messages
    TRNW-3: 47 Messages
    TRNW-4: 72 Messages

    March, 2014;
    TRNW-1: 727 Messages
    TRNW-2: 1,137 Messages
    TRNW-3: 165 Messages
    TRNW-4: 288 Messages

    February, 2014;
    TRNW-1: 1,223 Messages
    TRNW-2: 1,304 Messages
    TRNW-3: 147 Messages
    TRNW-4: 250 Messages

    January, 2014;
    TRNW-1: 1,106 Messages
    TRNW-2: 1,373 Messages
    TRNW-3: 34 Messages
    TRNW-4: 126 Messages

    December, 2013;
    TRNW-1: 592 Messages
    TRNW-2: 1,026 Messages
    TRNW-3: 18 Messages
    TRNW-4: 377 Messages

    November, 2013;
    TRNW-1: 527 Messages
    TRNW-2: 968 Messages
    TRNW-3: 150 Messages
    TRNW-4: 371 Messages

    October, 2013;
    TRNW-1: 607 Messages
    TRNW-2: 1,708 Messages
    TRNW-3: 167 Messages
    TRNW-4: 379 Messages

    September, 2013;
    TRNW-1: 1,511 Messages
    TRNW-2: 1,276 Messages
    TRNW-3: 319 Messages
    TRNW-4: 210 Messages

    August, 2013;
    TRNW-1: 1,287 Messages
    TRNW-2: 2,296 Messages
    TRNW-3: 201 Messages
    TRNW-4: 166 Messages

    July, 2013;
    TRNW-1: 1,229 Messages
    TRNW-2: 1,640 Messages
    TRNW-3: 154 Messages
    TRNW-4: 212 Messages

    TRNW has the most active and the most informative tech forum in the transmission industry!

    more e-mail forum totals

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    830,793
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