Volvo 240 Owner's Manual page 126

Volvo 1990 240 Model
Possible cause
Intake system leaking.
No fuel reaching engine.
No spark
Spark plugs, high tension leads or distributor
cap wet or defective.
pg. 94 Service diagnosis
Condition: Erratic idle (misfiring)
Possible cause
Intake system leaking.
file:///K|/ownersdocs/1990/1990_240/90240_19.htm (4 of 7)12/30/2006 8:25:13 AM
Correction
Check vacuum hose connections at manifold and
auxiliary air valve.
Check for fuel in the tank.
Check fuse No 4.
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.
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.
Correction
Check hose connections.