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Home >> Saturn >> 2000 >> LS Automatic >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transaxle Overhaul & Testing - 4T40-E & 4T45-E >> Trouble Shooting >> Symptom Diagnosis >> No Reverse Or Slips In Reverse

No Reverse Or Slips In Reverse

Low fluid level. Low fluid pressure. Reverse clutch piston leaking, binding or cracked. Reverse clutch spring and retainer assembly binding. Plugged reverse clutch center retainer and seal. Clutch friction plates worn or splines broken. Reverse clutch snap ring out of position. Reverse clutch housing cracked, feed holes plugged or tangs broken. Reverse clutch housing exhaust check ball missing or out of position. Driven sprocket support seal rings leaking. Driven sprocket support assembly porosity, cracked or misaligned. Channel plate and gasket misaligned, damaged or fluid restriction. Fluid leak across channels.

Low/reverse band binding, broken, worn or out of position. Low/reverse servo piston broken or binding, servo piston seals leaking, servo pin and springs binding. Low/reverse servo cover broken, loose or leaking. Low/reverse band anchor pin broken. Oil feed tubes broken, bent, plugged or leaking. Transaxle case porosity. Fluid leak or restriction in reverse clutch fluid routing. Shift linkage, manual valve and linkage disconnected or misaligned. No. 1 check ball missing.