Question about 1995 Volvo 940

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1998,940 turbo,sometimes refuses to start occationally cuts out

Having above problems, took car to dealer. Replaces cranck senson, fuel filter, air filter, rotor, spark plugs, battery and wires. Erros codes once said fault in wiring from controlbox to ignition, But no faults were measurable or visible. Shop are at thier wits end. When it ruses to start, it will start like nothing is wrong after minutes. Same when it stalls during driving, restartable after some time, like nothing is wrong. Took spark plugs out and they were almost white - but no explanation for the lean micture. Can it be a weak fuel pump, and is it possible to test pump pressure and flow. The non starting issue shows up maybe 3 times in a day, and not the following 2 weeks !! Cutting out is maybe twice a month. For more thatn 3-4 months now and no change/development

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Check ground wires.

Posted on Jul 12, 2009

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