Intake system leaking. Check hose connections.
Spark plugs, high tension leads or distributor
cap worn (defective)
Clean distributor cap and leads, check the cap for
cracks. Replace defective or worn parts.
Worn spark plugs. Remove. Clean or replace spark plugs.
pg. 106 Service diagnosis
Condition: Engine stalls at irregular intervals
Possible cause Correction
Defective wires.
Check wire terminals at: fuel pump, fuse No. 5 and 7, coil, distributor, ignition
switch and relays.
Intake system
leaking.
Check vacuum hose connections at manifold and auxiliary air valve.
Fuel filter clogged. Clean fuel tank filter and replace line fuel filter.
Condition: Excessive fuel consumption
Possible cause Correction
Fuel lines
leaking.
Check
tightness.
Spark plugs
worn.
Replace plugs.
Condition: Misfiring at highway driving speed