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1977 Volvo 242 244 245
Condition: Engine stalls at irregular intervals
Possible cause
Correction
Defective wires.
Check wire terminals at: fuel pump, fuse No. 7, coil,
distributor, ignition switch, relays and air flow sensor.
Intake system leaking.
Check that the flexible air intake hose, connecting the air
cleaner and intake manifold is tight.
Low idle.
Adjust.*
Fuel filter clogged.
Clean fuel tank filter and replace line fuel filter.
Exhaust Gas Recirculation Valve seizing. Replace valve.* (Engine will stall at idle.)
pg. 78 Service diagnosis
Condition: Low top speed, loss of power
Possible cause
Correction
Air filter clogged.
Check air filter.*
Throttle misadjusted.
Check that the throttle touches the high speed stop when the
accelerator is fully depressed.*
Fuel filter clogged.
Clean fuel tank filter and replace fuel line filter.*
Incorrect timing or dwell
angle.
Check and adjust.*
Condition: Excessive fuel consumption
Possible cause
Correction
Fuel lines leaking.
Check tightness.
Spark plugs worn.
Replace plugs.
Incorrect timing.
Check/adjust.*
Air filter clogged.
Check/replace.*
Control pressure
incorrect.
Check/replace control pressure regulator.*
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