DIAGNOSIS CHARTS
CONDITION
POSSIBLE CAUSES
CORRECTION
HARSH ENGAGEMENT
(FROM NEUTRAL TO
DRIVE OR REVERSE)
1. Fluid Level Low.
1. Add Fluid
2. Throttle Linkage Mis-adjusted.
2. Adjust linkage - setting may be too long.
3. Mount and Driveline Bolts Loose.
3. Check engine mount, transmission
mount, propeller shaft, rear spring to body
bolts, rear control arms, crossmember and
axle bolt torque. Tighten loose bolts and
replace missing bolts.
4. U-Joint Worn/Broken.
4. Remove propeller shaft and replace
U-Joint.
5. Axle Backlash Incorrect.
5. Check per Service Manual. Correct as
needed.
6. Hydraulic Pressure Incorrect.
6. Check pressure. Remove, overhaul or
adjust valve body as needed.
7. Band Mis-adjusted.
7. Adjust rear band.
8. Valve Body Check Balls Missing.
8. Inspect valve body for proper check ball
installation.
9. Axle Pinion Flange Loose.
9. Replace nut and check pinion threads
before installing new nut. Replace pinion
gear if threads are damaged.
10. Clutch, band or planetary
component damaged.
10. Remove, disassemble and repair
transmission as necessary.
11. Converter Clutch Faulty.
11. Replace converter and flush cooler and
line before installing new converter.
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AUTOMATIC TRANSMISSION - 48RE
DR
AUTOMATIC TRANSMISSION - 48RE (Continued)