Operation Manual

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Volvo 1990 240 Model

Possible cause Correction

Intake system leaking.

Check vacuum hose connections at manifold and

auxiliary air valve.

No fuel reaching engine.

Check for fuel in the tank.

Check fuse No 4.

No spark

Check that the high tension lead from the coil to the

distributor cap is connected and that the wires to the

distributor and coil are connected.

Check the fuse for the engine control system. The fuse

is located in the engine compartment on the left wheel

housing by the ignition coil.

Spark plugs, high tension leads or distributor

cap wet or defective.

Clean the parts with a dry cloth or spray with a moisture

remover. Replace defective or worn parts.

If no fault is found following the above steps, contact

your Volvo dealer.

pg. 94 Service diagnosis

Condition: Erratic idle (misfiring)

Possible cause Correction

Intake system leaking. Check hose connections.

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