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1985 Volvo 740 GL, GLE, Turbo
Weak battery or dead cell.
With the starting (ignition) switch in the "Driving" or
"On" position, check to see if the warning lights on the
dashboard come on and if they stay on when the starter
is engaged.
If the lights do not come on or if they go off when the
starter is engaged, the battery is discharged, or see
below.
Loose or corroded battery cable terminals.
Check the battery terminals and clamps. Clean or
replace if necessary. Check that the starter cable is
secure at its terminals.
The ground strap, which connects the body to the rear
of the engine, should also be checked for corrosion or
looseness.
Open circuit between starting (ignition) switch
and starting (ignition) switch terminal on
starter.
The circuit is closed if a clicking sound is heard from
the starter when it is engaged. If no clicking sound is
heard, check that the blue wire at the starter is secure.
If still no clicking sound is heard, the starting
(ignition) switch or the wire is defective.
Starter motor defective.
If the above checks have been performed, and no fault
is evident, the starter may be defective.
NOTE: In this case the headlight intensity will not
decrease when the starter is engaged.
pg. 74 Service diagnosis
Condition: Starter motor operates but engine does not start
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 fuses No 1 and 11.
No spark
If there is 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.
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.
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