Page text (OCR transcript)
AT-38 AUTOMATIC TRANSMISSION — Troubleshooting (Mechanical System Tests)
2 Range
P
R
N
D
2
L
1 ← 2 Abnormal Noise?
2 ← 1 Shock?
AT2809
(c) Check for abnormal noise at acceleration and deceleration, and for shock at up-shift and down-shift.
3. L RANGE TEST
(a) While running in the L range, check to see that there is no up-shift to 2nd gear.
L Range No Up-Shift
P
R
N
D
2
L
1 → 2
AT2808
(b) While running in the L range, release the accelerator pedal and check the engine braking effect.
EVALUATION
If there is no engine braking effect:
• First and reverse brake is defective
L Range
P
R
N
D
2
L
1 → Engine Braking?
AT2807
(c) Check for abnormal noise during acceleration and deceleration.
L Range
P
R
N
D
2
L
Abnormal Noise?
AT2806
4. R RANGE TEST
Shift into the R range and, while starting at full throttle, check for slipping.
R Range Full Open
P
R
N
D
2
L
Slipping?
AT2805
