Fault Diagnosis

FAULT DIAGNOSIS

The following tables are intended as a guide to diagnosis of possible faults in the transmission unit. Where the fault concerns a leak it is recommended that it is located by the use of a crack detection fluid such as for example Met-L-Chek. This product is available on the market in spray form and permits the leakto be located after a short test drive.

INITIAL CHECKS

Note: Before road testing ensure the following settings are checked:

Transmission oil level
Ensure the vehicle is on level ground,
Run the engine until the transmission is hot,
Withdraw the dipstick and wipe clean with a lint free cloth,
Replace the dipstick and withdraw it noting the oil level,
Stop the engine,
Top up as required,
Run the engine and recheck the level.

ENGINE TUNE

Selector cable adlustment
Check gear selection in all selector positions.
If in doubt select 'N', disconnect the cable at the gearbox selector lever, check the gearbox lever is in 'N' position (third detent from the rear) and refit the selector cable ball pin to the lever.
Adjust as necessary.

STALL TEST

Ensure the transmission is at normal running temperature,
Fully apply the handbrake,
Start the engine,
Fully depress the footbrake,
Select Position 'D' - Drive,
Fully depress the accelerator ('kick-down' switch fully depressed),
Note the tachometer reading,
Compare the tachometer reading to the specification.

CAUTION! This test must not last more than 5 seconds. Always allow the engine to idle for at least two minutes between tests to allow the transmission fluid to cool down. Do not carry out more than three tests in any half-hour.

ROAD TEST

Fully check all shift speeds and note. Compare the results with the specification in addition to general observations of transmission behaviour, noises, leaks etc., and consult the following Fault Finding Chart.

CAUTION! When renewing the transmission, ALWAYS flush out the oil cooler and feed and return pipes.


FAULT FINDING CHARTS