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TRNW TECH TIP
OF THE MONTH!
Watch for cracked 3-5-R drum on 6L80 & 6L90!
Watch for cracked 3-5-R drum on 6L80 & 6L90!
6L90 3-5-R drum (click to enlarge)

6L90 with 2-3 flare!
This 3-5-R drum is cracked just on the outside of the weld, as seen in the picture above. The vehicle had a slight flair going to 3rd gear only when hot. Surprisingly, we took the transmission apart and couldn't find anything that was obviously wrong with it. All of the clutches looked good. That's when we turned to TRNW and found a post from Chuck Stasny that alerted us to this drum. There is actually a TSB that describes potential problems on all model years prior to 2008. I thought this might save someone some time. - more

INDUSTRY NEWS!

  • Multiple reverse engagement issues related to the B2 brake clutch in Toyota (U660E/F) and (U760E/F) units can be traced to a worn and/or sticking B2 control valve and plug valve. Ream the bore and stop pressure loss with the new Sonnax oversized B2 control valve kit, which features an upgraded design and quality material to prevent future bore wear. The kit's spring is calibrated to OE pressures.

  • 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

  • Numerous transmissions may suffer from excessive wear at the plunger sleeve in the lockup clutch control valve bore, resulting in a variety of troublesome TCC apply and release complaints. Restore proper clearances and achieve normal operation with two all-new Sonnax lockup clutch control plunger valve kits.
      * Fits VW/Audi (09D) and Aisin AW (TR-60SN) units
      * Fits Aisin AW (TF-80/81SC, TF-60SN), BMW (6F21WA), Ford (AF21) and more

  • 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!

  • Common transmission issues include loss of Reverse pressure and burnt brake clutches due to boost sleeve bore wear. Conquer these problems and restore critical tolerances with these two new Sonnax boost valve kits.
      * Fits Aisin AW (TF-60SN), BMW (6F21WA) and VW/Audi (09G/09K/09M) units
      * Fits Aisin AW (TF-80/81SC), Ford (AF21) and more

  • 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

  • Wear at the secondary pressure regulator valve boost assembly in Aisin AW (TR-60SN) and VW/Audi (09D) transmissions may create excessive TCC slip/surge, bushing failures and overheated fluid/converters. Eliminate these issues and restore proper hydraulic control by installing the all-new Sonnax secondary pressure regulator boost valve kit.

  • 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

  • Toyota/Lexus (U760E/F) units often exhibit shift quality concerns, solenoid codes and TCC apply/release complaints due to excess solenoid supply pressure, which results from side-loading of the steel OE solenoid modulator valve causing premature bore wear. Achieve normal operation by reconditioning the bore and installing the new Sonnax oversized solenoid modulator valve kit.
      * Features an upgraded design and quality material to prevent future wear and side loading.

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

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

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

  • 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

  • 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

  • Toyota A340E/F and A650E units often exhibit TCC apply/release complaints, converter codes and inadequate lubrication. Featuring hardcoat anodized valves to minimize wear, the Sonnax oversized lockup relay valve kit will restore the proper hydraulic control to correct these issues and fits all three applications through special port arrangements. Additional benefits include a special redesigned sleeve that:     * Eliminates rotational indexing issues
        * Provides 360º flow around the valve to prevent side loading
        * Incorporates grooves and cross-slots to maximize valve support while maintaining proper flow

  • What's happening around the network

    TRNW Member Count;
    Active Members:          855
    Inactive Members:       1188


    Total Members:         2043

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

    New exclusive feature! Locate a TRNW Member Shop!

    Fix Posted: 4/18/14
    Complaint: 4L65E, 2-3 shift flare
    Posted Fix: Installed a corvette type servo
    Click here to read the entire thread!
    A Recent Problem:
    Problem Posted: 4/2/2014
    Subject: 6T70, 6t70, shudders going into third and sometimes fifth gear
    Number of Replies: 14
    Click here to reply to this problem
    Click here to read the entire thread!
    Total Number of Fixes in our Fix Database:

    7620 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

    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
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    June, 2013;
    TRNW-1: 1,401 Messages
    TRNW-2: 2,241 Messages
    TRNW-3: 161 Messages
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    May, 2013;
    TRNW-1: 1,972 Messages
    TRNW-2: 2,209 Messages
    TRNW-3: 61 Messages
    TRNW-4: 274 Messages

    April, 2013;
    TRNW-1: 1,251 Messages
    TRNW-2: 1,759 Messages
    TRNW-3: 282 Messages
    TRNW-4: 379 Messages

    March, 2013;
    TRNW-1: 1,522 Messages
    TRNW-2: 2,322 Messages
    TRNW-3: 337 Messages
    TRNW-4: 469 Messages

    February, 2013;
    TRNW-1: 1,314 Messages
    TRNW-2: 1,987 Messages
    TRNW-3: 330 Messages
    TRNW-4: 534 Messages

    January, 2013;
    TRNW-1: 1,343 Messages
    TRNW-2: 2,812 Messages
    TRNW-3: 458 Messages
    TRNW-4: 1,119 Messages

    December, 2012;
    TRNW-1: 1,730 Messages
    TRNW-2: 2,990 Messages
    TRNW-3: 270 Messages
    TRNW-4: 632 Messages

    November, 2012;
    TRNW-1: 1,346 Messages
    TRNW-2: 2,450 Messages
    TRNW-3: 297 Messages
    TRNW-4: 632 Messages

    October, 2012;
    TRNW-1: 1,237 Messages
    TRNW-2: 2,897 Messages
    TRNW-3: 351 Messages
    TRNW-4: 481 Messages

    September, 2012;
    TRNW-1: 1,485 Messages
    TRNW-2: 1,901 Messages
    TRNW-3: 503 Messages
    TRNW-4: 469 Messages

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

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