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1992 Volvo 240
Defective wires.
Intake system
leaking.
Fuel filter clogged.
Condition: Excessive fuel consumption
Possible cause
Fuel lines
leaking.
Spark plugs
worn.
Condition: Misfiring at highway driving speed
Possible cause
Spark plugs
fouled.
pg. 107 Service diagnosis (cont.)
Condition: The gear selector can not be moved from the P position
The gear selector is locked in the P position. To release the selector, the ignition must be switched on
(ignition key in position II) and the brake pedal must be depressed.
Depress the brake pedal
Select a gear
Release the brake pedal
If the gear selector cannot be moved, check fuses 7 and 12.
file:///K|/ownersdocs/1992/1992_240/92240_104.htm (3 of 5)12/30/2006 9:31:37 AM
Check wire terminals at: fuel pump, fuse No. 5 and 7, coil, distributor, ignition
switch and relays.
Check vacuum hose connections at manifold and auxiliary air valve.
Clean fuel tank filter and replace fuel line filter.
Correction
Check
tightness.
Replace plugs.
Correction
Drive the vehicle in a lower gear and keep the engine rpm higher for a few miles
in order to remove carbon deposit on the spark plugs. If this procedure is not
effective, clean or replace the spark plugs.
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