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Excessive shock or engine revs up abnormally high on 4-5 upshift or 5-4 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 D (5th clutch) defective |
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Shift fork shaft stuck |
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Foreign material in separator plate orifice |
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Shift valve C defective |
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Reverse inhibitor valve defective |
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D inhibitor valve defective |
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A/T clutch pressure control solenoid valve A accumulator defective |
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A/T clutch pressure control solenoid valve C accumulator defective |
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4th/reverse air check valve stuck |
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5th air check valve stuck |
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4th clutch defective |
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5th 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 missing shift fork bolt on the shift fork shaft. |
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Check the shift fork shaft detent for wear and damage. |
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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 shift valve C, the reverse inhibitor valve, and the D inhibitor valve in the main valve body for free movement, and check the valve spring for wear and damage. |
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Check the A/T clutch pressure control solenoid valve A and C accumulator pistons, the O-rings, and the springs in the secondary valve body for wear and damage. |
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Check for a stuck 4th/reverse air check valve in the main valve body. |
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Check for a stuck 5th air check valve in the torque converter housing. | | 