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owners manual Volvo 242
owners manual Volvo 242 - year of production: 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993 - Volvo 242 244 245 owners manual EN
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from owners manual to the vehicle Volvo 242, year of production 1974 - 1993:
1978 Volvo 242 244 245
Possible cause Correction
Fuel lines leaking.Check tightness.
Spark plugs worn. Replace plugs.
Incorrect timing. Check/adjust.*
Air filter clogged. Check/replace.*
Control pressure Check/replace control pressure regulator.*
incorrect.
Cold start injector Replace injector.*
leaking. (A leaking cold start injector also causes uneven idle and hard
starting.)
* Should be checked by a Volvo dealer.
pg. 79 Service diagnosis
Condition: Dieseling
Possible cause Correction
Injector Check air flow sensor plate and rest pressure.*
leaking.
Condition: Misfiring at highway driving speed
Possible cause Correction
Spark plugs Drive the vehicle in a lower gear and keep the engine rpm higher for a few miles
fouled. in order to remove carbon deposit on the spark plugs. If this procedure is not
effective, clean or replace the spark plugs.
Condition: Deceleration backfiring
Possible cause Correction
Diverter valve Check diverter valve operation.*
faulty.
* Should be checked by a Volvo dealer.
file:///K|/ownersdocs/1978/1978_242_244_245/78242244245_03c.htm (10 of 12)12/22/2006 10:11:30 PM
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year of production from: 1974
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Volvo 242 244 245 owners manual
pages 85 - 91
Volvo 242 244 245 owners manual
page 88 / 105
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