AUTOMATIC TRANSMISSION
23
Fault finding aid
Chart 30 : No drive with lever in D and 2 but drive in 1 only.
If the warning light is operational and it remains extinguished when there is a fault,
the freewheel is damaged.
Refer to the instructions for replacement in MR T.A.M.
Chart 31 : Buzzing type noise in P and N when cold.
If the warning light is operational and it remains extinguished when there is a
fault, it often occurs following an oil change, as not enough oil was refilled.
Check the conformity of the dipstick on the table in MR T.A.M.
no
Correct
Replace the dipstick if it is incorrect. Check the oil level (engine running) and top it
up if necessary. After checking / replacing the dipstick and topping up the level,
does the fault persist?
yes
Vibration of the pressure regulating valve.
Replace the plate and its seals (on the hydraulic distributor).
Adjust the line pressure.
3DMXTT1.0
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