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Poor acceleration; engine revs up abnormally high when starting off in D, S, and R
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A/T clutch pressure control solenoid valve D defective |
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Output shaft (countershaft) speed sensor defective |
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Torque converter one-way clutch defective |
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Low ATF level |
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ATF pump worn or binding |
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Main regulator valve stuck or spring worn |
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ATF strainer clogged |
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Stator shaft worn or damaged |
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Inspect A/T clutch pressure control solenoid valve D with the HDS. |
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Check the output shaft (countershaft) speed sensor installation. |
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Inspect the output shaft (countershaft) speed sensor O-ring for wear and damage. |
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Replace the torque converter. |
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Check the ATF level. If the level is below the lower level, check the ATF cooler lines for leaks and loose connections. If necessary, clean the ATF cooler lines. |
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Improper alignment of the ATF pump and the torque converter housing may cause ATF pump seizure. The symptoms are mostly an rpm-related ticking noise or a high pitched squeak. |
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Check the main regulator valve in the regulator valve body for free movement, and check the valve springs for wear and damage. |
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Check the ATF strainer for debris. If the strainer is clogged, find the damaged components that caused the debris. If no cause for contamination is found, replace the torque converter. |
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Check the stator shaft splines for wear and damage. | | 