Shift Pointers: Getting the 10R80 shaft
The Ford 10R80 family of transmissions has become known for the CDF clutch cylinder sleeve moving out of position. An updated drum has been made available by Ford with a “no-walk” backing lip to prevent repeat failure. After this cylinder has been replaced, there still may be another problem still lurking in the transmission that
Park Wiggle Movement (En Español)
La transmisión 6F35 utiliza un sensor interno de rango de transmisión digital (TR) (figura 1) para proporcionar un ciclo de trabajo de frecuencia fija al módulo de control de la transmisión (TCM) para cinco posiciones diferentes de la palanca de control manual. ellos siendo; Estacionar, reversa, neutral, conducir y baja. El TCM usa esta entrada
Shift Pointers: Park Wiggle Movement
The Ford 6F35 transmission uses an internal Digital Transmission Range (TR) sensor (Figure 1, above) to provide a fixed frequency duty cycle to the Transmission Control Module (TCM) for five different manual control lever positions. They are Park, Reverse, Neutral, Drive and Low. The TCM uses this input to influence line pressure control, shift scheduling
A 10L80 with a buck and bang
A 2018 Cadillac Escalade ESV AWD 6.2L using a 10L80 transmission came in to Stroli Motors barely moving forward, making a banging noise in the center of the gearbox. Reverse was good. Keith from Stroli pulled two codes from the PCM: P0300 for Random Multiple Cylinder Misfire Detected; and P175E for Shift Limiting Active. P175E
Another needle in a haystack: Locating wiring problems
Paul Loch from Certified Transmission wrote a very good and detailed article for Transmission Digest in the March 2022 issue entitled “A Needle in a Haystack – Finding and Diagnosing Intermittent Problems.” The vehicle used for this article was a 2013 Ram 3500 6.7L equipped with a 68RFE transmission. Well worth the read. ATSG encountered
Shift Pointers: A Peculiar Problem Syndrome
An interesting scenario arose recently at Performance Transmissions, where Rick was faced with a 62TE pressure control problem in a 3.6L 2019 Dodge Grand Caravan. The Line Pressure Solenoid is a Normally Vented Solenoid designed to lower line pressure when it duty cycles as the hydraulics show in figure 1, above. The theory of operation provided
42RLE buzzing noise on initial engagement
The complaint A 2005 Jeep Wrangler equipped with the 42RLE transmission had a buzzing noise when the shift selector was moved to the drive position. The vehicle was actually brought in with a shift complaint, at which time the owner of the vehicle also said that the buzzing noise was present since he purchased the
62TE delayed forward engagement
The complaint A 2016 Dodge Journey with the 62TE transmission had a complaint of delayed forward engagement and fluid leaking out of the vent when the transmission is placed in drive only. A code P0740 “Torque Converter Clutch Malfunction” was set. The cause When the valve body cover was removed, the technician saw that the
Ford 6F35 harsh forward re-engagement after stop/start
The complaint A 2014 to 2016 Ford Escape equipped with the 6F35 transmission built on or before Feb. 26, 2016, may have a complaint of a harsh forward or reverse engagement after an active stop/start event. The Malfunction Indicator Lamp may be illuminated and diagnostic trouble code P0C27 “Auxiliary Transmission Fluid Pump Motor Current Low”
How the Ford engine stop/start system affects transmissions
2018 and later Ford Escape vehicles equipped with a 1.5 L Eco-Boost, 2.0-liter turbocharged engine or the 2L VCTi engines, and the 6F35 transmission, have an engine stop/start system. The stop/start feature can be disabled by the driver and will remain disabled after each key cycle until reactivated by the driver. Some Ford Fusion and
Breaking parts: Pressure regulator valve and bore blues
One of our ATSG members, Bob at Trans Tek, recently shared with us an experience he encountered with a 2011 GMC 3500 Mini School Bus with a Duramax diesel engine in front of a 6L90 transmission. It came in to the shop slipping, along with having no second or sixth gear. After the transmission was
Shift Pointers: No ball, no reverse
Yoram Levy from Israel gave us a call with a 2022 Chevrolet Traverse using a 9T65 that suddenly lost reverse. He had found a check ball missing in his valve body which he points out in figure 1 (above). Figure 2, below, shows how bad the plate was where this ball passed through. GM usually
