12/31/2023 0 Comments Missing a shift car![]() Refer to SI "Automatic Transmission Oil Cooler Flushing and Flow Test" for the procedure.įull sized trucks and utilities should have the shift cable properly adjusted and/or replaced if the cable is not holding proper adjustment. It is also important to flush and flow check the transmission oil cooler using J45096. Clean or replace the PC solenoid as necessary. If clutch debris is found, it is also very important to inspect the pressure control (PC) solenoid valve fluid screens. If none of the above items are found to be the root cause for the failure the Input Housing, Forward Clutch Piston and 3-4 Clutch Piston should be replaced and resealed as well as resealing the 2-4 Servo. If this condition is encountered the pump cover should be replaced along with any residual damage. ![]() This condition may be caused by the stator shaft (214) being non-concentric with the pump cover (215). The turbine shaft (621) may also be damaged in the stator bushing journal area. Inspect the Forward Sprag for proper operation per eSI document #215197.Īlso inspect to see if the rear stator shaft bushing (241) may be worn on one side or damaged. Selective Washer (616) extra washer installed Input Sun Gear to Input Carrier Thrust Bearing (700) damaged came apart #7 Checkball (located in the case) for not being seated or leakingīoost Valve (219) stuck causing low line pressure Turbine shaft apply fluid passage sealing balls are in place, these are pressed into the turbine shaft end inside the input housingģ-4 Clutch Apply Piston (623) Seals for being cut or damagedģ-4 Clutch Apply Piston (623) for being crackedģ-4 Clutch and Forward Clutch oil feed passage blocked or restricted (should flow check the housing, and the passages should be inspected for proper location)ģ-4 Clutch air bleed orifice cup plug (698) is in place Turbine shaft check valve retainer and ball assembly (617) is in place in the end of the turbine shaft and has not come out and gone inside the torque converter, if the retainer or ball is missing from the turbine shaft the torque converter must be replaced Turbine shaft oil seal rings (619) for cut or damaged. Servo Feed Oil Passage blocked with sedimentįorward Clutch Apply Piston (630) Seals for being cut or damagedįorward Clutch Apply Piston (630) for being cracked Low Line pressure (perform a PCS test as defined in SI)ġ-2 accumulator piston (56) cracked or brokenĢ-4 Servo Piston Seals (18, 19, 21, 26) for being cut or damagedĢ-4 Servo Apply Pin (13) for being nicked/scored /binding in the pin bore, damaged clutches will frequently cause the pin to have a rough finish where it passes through the case, this is a result of the clutch debris not usually the cause of the distressed clutches or bandĢ-4 Servo Piston Bore for being scored or mismachinedĢ-4 Band Anchor Pin (41) missing (low mileage) This transmission is very sensitive to low oil level. These items were found to be the cause of the distress to the 2-4 band and 3-4 clutch.įirst check transmission fluid level. ![]() An internal transmission disassembly may reveal a 2-4 band and or a 3-4 clutch being distressed.īased on engineering transmission quality review sessions the following items should be inspected and or replaced as required. The 4L60E/4L65E/4L70E automatic transmission may experience a condition of slipping, late or missed shifts in 2nd 3rd and 4th. The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI. Subject: Slip Condition in 2nd, 3rd or 4th - Damaged 2-4 Band or 3-4 Clutch #PIP3136N: Slip Condition In 2nd 3rd Or 4th - Damaged 2-4 Band Or 3-4 Clutch - keywords busy chatter fourth second shudder third - (Jan 20, 2010) For your model year there is a bulletin that describes this condition. A common problem that creates many different symptoms is a leaking input housing. Often times what I see is a worn 2-4 band, and by the time it is burned, the reverse clutch housing is heat damaged as well. Just a simple plate kit would probably not provide. If your fluid is burned(odor) or off color, that is an indication of a need for teardown.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |