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1977 Volvo 242 244 245
Cold start injector
leaking.
Replace injector.*
(A leaking cold start injector also causes uneven idle and hard
starting.)
pg. 79 Service diagnosis
Condition: Dieseling
Possible cause
Correction
Injector
leaking.
Check air flow sensor plate and rest pressure.*
Condition: Misfiring at highway driving speed
Possible cause
Correction
Spark plugs
fouled.
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 if necessary.
Condition: Deceleration backfiring
Possible cause
Correction
Diverter valve
faulty.
Check diverter valve operation.*
pg. 80 Specifications
Type designations
In all correspondence concerning your vehicle with the dealer and when ordering parts, the V.I.N
number should always be quoted.
1 V.I.N. (Vehicle Identification Number)
V.I.N. plate is located on the body on the left windshield pillar. The V.I.N. is also stamped on the right
hand door pillar.
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