O - other possible causes
I - most probable cause
problem |
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Causes |
Harsh N to D or N to R shifts |
Slow shift N to D |
Run-away upshift 2-3 kick-down |
Harsh up-shift & 3-2 kick-down |
No up-shift |
No kick-down on normal down-shift |
Erratic shifts |
Slips in D |
Slips in reverse only |
Slips in any gear |
No drive in any gear |
No drive in forward gears |
No drive in reverse |
Drives in neutral |
Drags or locks |
Noise |
Hard to fill or blows out |
over heats |
|
Oil level |
|
O |
O |
|
O |
O |
O |
O |
|
O |
O |
|
|
|
|
O |
O |
O |
|
Control linkage |
O |
O |
O |
O |
O |
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Oil pressure check |
O |
O |
O |
O |
O |
O |
O |
O |
O |
O |
O |
O |
O |
|
|
|
|
|
|
Kickdown band |
O |
|
O |
O |
O |
O |
|
|
|
|
|
O |
|
|
O |
|
|
O |
|
Low-reverse band |
O |
|
|
|
|
|
|
|
O |
|
|
|
O |
|
O |
|
|
O |
|
Improper engine idle |
O |
|
|
|
|
|
O |
|
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|
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|
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|
|
|
|
|
Servo linkage |
O |
|
|
|
|
|
|
|
O |
|
|
|
O |
|
O |
|
|
|
|
Accumulator |
|
|
O |
O |
O |
O |
|
O |
|
|
|
O |
|
|
|
|
|
|
|
Valve body assembly |
O |
O |
O |
O |
O |
O |
|
O |
O |
O |
O |
O |
O |
O |
|
O |
O |
O |
|
Manual valve lever |
O |
|
|
|
O |
|
|
|
|
|
O |
|
|
O |
|
O |
|
|
|
Air pressure check |
|
|
|
|
O |
O |
|
O |
O |
O |
O |
O |
O |
|
|
|
|
|
|
Servo link |
|
|
O |
O |
O |
|
|
|
|
|
|
O |
|
|
O |
|
|
|
|
Governor |
|
|
|
|
O |
O |
|
|
|
|
|
|
O |
|
|
O |
|
O |
|
Gear shift cable |
|
|
|
|
|
O |
O |
|
|
|
|
|
|
O |
|
|
|
|
|
Regulator valve |
|
|
|
|
|
O |
|
|
O |
|
O |
|
|
|
|
O |
|
O |
|
Strainer |
|
|
|
|
|
O |
|
|
|
O |
|
|
|
|
|
|
O |
|
|
Converter control valve |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
O |
O |
O |
|
Breather clogged |
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
O |
|
|
Cooler or lines |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
O |
O |