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Excessive shock or engine revs up abnormally high on 1-2 upshift or 2-1 downshift
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Shift solenoid valve A defective |
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A/T clutch pressure control solenoid valve A defective |
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A/T clutch pressure control solenoid valve B defective |
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A/T clutch pressure control solenoid valve C defective |
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Transmission fluid pressure switch A (2nd clutch) defective |
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Foreign material in separator plate orifice |
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A/T clutch pressure control solenoid valve A accumulator defective |
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2nd air check valve stuck |
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2nd clutch defective |
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Clearance between clutch end-plate and top disc incorrect |
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Inspect the shift solenoid valve A function with the HDS. |
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Check for a seized shift solenoid valve, and inspect the O-rings. |
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Inspect A/T clutch pressure control solenoid valve A with the HDS. |
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Inspect A/T clutch pressure control solenoid valve B with the HDS. |
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Inspect A/T clutch pressure control solenoid valve C with the HDS. |
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Check for a clogged orifice in the separator plate. If the orifice is clogged, remove it and clean the separator plate orifice. |
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Check the A/T clutch pressure control solenoid valve A accumulator piston, the O-ring, and the springs in the secondary valve body for wear and damage. |
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Check for a stuck 2nd air check valve in the torque converter housing. | | 