Critical wear areas and vacuum test locations: GM 10L and Ford 10R series - Transmission Digest

Critical wear areas and vacuum test locations: GM 10L and Ford 10R series

Ford 8F24 mechanical diode failure

Mechanical diode failure in automatic transmissions is not uncommon. As far back as the AODE/4R70 shops have seen this type of failure. In April 2022 an article was published in Transmission Digest called, “The ins and outs of the Hydraulic Selectable One-Way Clutch (SOWC).” This article provided photos of the type of damage this style

Tech-Speak-April-Figure-1-1400

Mechanical diode failure in automatic transmissions is not uncommon. As far back as the AODE/4R70 shops have seen this type of failure. In April 2022 an article was published in Transmission Digest called, “The ins and outs of the Hydraulic Selectable One-Way Clutch (SOWC).” This article provided photos of the type of damage this style diode is susceptible to in 9T50 and 8F35 transmissions.

Ford 8F35 maintenance tips: Planetary failure and no-pressure conditions

Our shop has had several vehicles come in with the Ford 8F35 transmission having planetary failure. Apparently, there was a run where the pinion needle bearings had a hardness problem (see Figure 1). Related Articles – Back with force: ATSG is back in full swing to educate the transmission industry – Don’t fear customer complaints about

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Don’t fear customer complaints about CVTs

Continuously Variable Transmissions, or CVTs, are more common than you think. Audi, Subaru, Nissan, Ford, GM and many other automakers use CVT transmissions in cars and SUVs. There is no way to avoid them. Chances are there is one in your shop right now. Related Articles – Powertrain industry directory and buyer’s guide 2024 –

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Shift Pointers: A Chrysler 300 no-shift complaint

The case study has to do with a 2009 Chrysler 300 C 5.7L Nag1 RWD with 71,923 miles on it (see Figure 1, above). Related Articles – Shift of the shaft: Diagnosing Chrysler 48RE manual shaft issues – Sometimes, a diagnostic code is all you need – 10L80 and 10R80 pump gear differences It is

A guide to common GM, Ford and Nissan programming issues

One of the most common complaints I hear from shops when trying to install a new GM TCM is, “The module will not communicate.” While that might be partially true, by design they won’t communicate until they are programmed. If programming fails, there will be an “E” code set which will help you get to

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Sonnax introduces drop-in 4-5-6 sleeved accumulator piston kit for GM 6T series

Sonnax has introduced a drop-in 4-5-6 sleeved accumulator piston kit (part no. 124740-68K). The company says users can recover hydraulic control and renew shift feel and performance in GM 6T70, 6T75, 6T80 (Gen. 2) transmissions by installing this kit. Related Articles – Schaeffler releases TorCon 6L80 torque converter – American Powertrain adds GearStar automatic transmissions

Sonnax introduces TCC apply limit switch valve kits for Chrysler RFE series

Sonnax has introduced a drop-in TCC apply limit switch valve kit for the Chrysler RFE series. Related Articles – Raybestos adds new Toyota UA80 / UB80 converter clutch plates – BendPak announces upgraded Litestix work light – Schaeffler offers new LuK clutch kits The company says you can limit the amount of pressure applied to the

Sonnax introduces GM 6L80, 6L90 output planet saver kits

Sonnax has introduced new output planet saver kits for GM 6L80 and 6L90 transmissions. The company says these kits can repair and prevent common concerns and save the planetary assembly when installed. Related Articles – Transtar to offer recycled engines – Alto introduces filters for GM 6L series – PRT launches 30 new complete strut

Sonnax introduces Smart-Tech clutch kit for GM 4L series

Sonnax has introduced a new Smart-Tech clutch kit for optimizing clutch capacity and guarding against clutch burnup in GM 4L60, 4L60-E, 4L65-E and 4L70-E transmissions. This kit (part no. 77734-01K) includes eight .067-in. BorgWarner high-energy frictions and seven .095-in. Lindered steels recommended for use with Sonnax Smart-Tech input housings. Related Articles – Force Control Industries