Attention! 4-cylinder engines of 1998 and 6-cylinder engines of cars "Toyota 4 Runner/ Hilux/ Surf" equipped with SOR - an ignition system with direct mounting of coils on spark plugs. In this system, there is no distributor. The service features are described in subsection 11.3.
Typical defects of the distributor cap
1. Cracks on the wire outlet; 2. Cracks in the lid; 3. Breakout; 4. Wear of the coal; 5. Electrode erosion
Runner Check Locations
The places where the runner should be checked are indicated by arrows.
1. On 4-cylinder engines (2.7L), spark plug wires should be checked at the same time as spark plug replacement.
2. The easiest way to check is to inspect the wires on a running engine in a darkened garage. If you find a glow (breakdown), replace the wires. Check the condition of the distributor cap and rotor.
3. To check and clean the wires, disconnect each wire separately by turning the tip 1/2 turn and pushing it towards you. On late-model cars, you will need to remove the trim on the cylinder head cover. Disconnect the wire on the distributor cap. Check the condition of the wire contacts and seals. Wipe the wires. Do not bend the wire too much, as this may break the conductive core. If cracks, signs of breakdown or burning are found, replace the wire.
4. Check for corrosion on the wire end connectors and spark plug terminals. Check the strength of the connector connection by placing the wire end on the spark plug and shaking it. If the connection is loose, tighten the contact petals.
5. Turn the jack handle clockwise to raise the car enough to lift the wheel off the ground. Completely unscrew the wheel mounting bolts and remove the wheel.
6. Loosen the mounting screws and remove the distributor cap. Wipe the cap clean and check the inside and outside of the cap for cracks, traces of surface breakdown (thin charred tracks), wear, burning and weakening of contacts.