Tag
#manual gearbox
4 posts in Car Diagnostics blog about "manual gearbox" — OBD-II diagnostics, DTC codes, repair. ← All posts
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Clutch judder from a standstill: what it is telling you
A shudder as you pull away means the clutch is not engaging evenly. The cause is sometimes the clutch and often something around it.
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Crunch on downshift: synchros, clutch drag or oil
A crunch going into a lower gear usually means the clutch is not fully releasing, not that the gearbox is worn out. The distinction is worth several hundred.
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Revs hang between shifts: emissions calibration, not a fault
Lift off to change gear and the revs stay up for a moment before falling. Almost every modern manual does it, and the reason is not what most people assume.
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Manual gearbox will not go into gear: clutch or linkage
Whether it refuses every gear or only one narrows the cause immediately. A clutch that will not release and a stretched selector cable feel similar and cost very differently.