Toyota 4 Runner/Hilux/Surf

1987-1998 of release

Repair and car operation

6.2.2. Transmission diagnostics

THE GENERAL DATA

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The prevention

Malfunction of the engine (capacity loss), wrong adjustments, refusals of hydraulic system of transmission, mechanical drive and processor control system can be principal causes of abnormal work of transmission. First of all it is necessary to check up level and a liquid condition, to adjust draughts. If these measures do not lead to positive result it is necessary to address in car-care centre.

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Preliminary checks

PERFORMANCE ORDER

1. Check up level and a liquid condition. If level above norm check up presence of pollution by a cooling liquid which could get because of leak in a radiator. If spumescence a liquid replace is found out. 2. Check up turns of idling of the engine. If necessary execute repair and adjust, as the further checking of transmission is not meaningful. 3. Believe work of a mechanical drive of transmission.

Condition check on liquid leak

PERFORMANCE ORDER

1. The liquid leak is easily established on dark red colour and eliminated by replacement of epiploons or linings. For detection of an appreciable leak park the car after a trip on some km over a cardboard or paper blank leaf. After nearby 2 minutes the leak can be found out. If a leak weak carefully clear картер and check up places of consolidations after a trip. 2. If the leak place is established, define the reason of a leak and a way of repair (for example lining replacement it is impossible to eliminate a leak if demountable planes сдеформированы). 3. Before leak elimination analyse the reasons of a leak and define character of repair work as independently it is impossible to execute set of kinds of repair.

Flow from under linings there can be a consequence of increase of pressure or level of a liquid owing to a contamination of ventilating apertures, deformations of the pallet or its demountable plane, discrepancy of the applied mark of hermetic recommended, defects of moulding of the pallet. Check periodically tightness of consolidation of a branch pipe of the index and a speedometer reducer.

Flow from under an epiploon can to be caused increases of pressure or level of a liquid owing to a contamination of ventilating apertures, wrong installation of an epiploon, damage of a condensed neck of a shaft or deterioration of the bearing of a shaft.

The leak картера is caused by defects of moulding. Check reliability of fastening of hoses of a cooler of a liquid.

The leak from сапуна specifies in transmission overflow, hit of a cooling liquid, porosity of a material картера, wrong position of the index, a contamination of ventilating and drainage channels.