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Vehicle moves in D and S, but not in R (or moves forward in R)
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Transmission range switch broken or out of adjustment |
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Shift cable broken, binding, or out of adjustment |
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Connection between shift cable and transmission or shift lever is worn |
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Shift fork shaft stuck |
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Manual valve defective |
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4th accumulator defective |
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4th clutch defective |
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Reverse gears worn or damaged |
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Reverse idler gear shaft/holder worn or damaged |
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Reverse selector or reverse selector hub worn or damaged |
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Inspect the transmission range switch. If the transmission range switch fails the inspection, replace the switch. If the inspection is OK, check for proper transmission range switch installation, and adjust the shift cable. |
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Check for a loose shift cable at the shift lever and the selector control lever. |
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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 the manual valve in the manual valve body for wear and damage, and check the manual lever guide pin for wear and damage. |
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Check the 4th accumulator piston, the O-ring, and the spring in the regulator valve body for wear and damage. |
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Inspect the reverse idler gear shaft/holder for wear and damage. |
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Inspect the reverse selector gear teeth chamfers, and inspect the engagement teeth chamfers of the third shaft reverse gear and the reverse selector hub. Replace the reverse gears and the reverse selector if they are worn or damaged. If the transmission makes clicking, grinding, or whirring noises, also replace the third shaft 4th gear, the reverse idler gear, the mainshaft 3rd gear, and the countershaft 2nd gear. | | 