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Home >> Volvo >> 2001 >> S40 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Diagnostic Procedures >> Fuel Systems >> Fuel Tank System Pressure Test >> Fuel Filler Cap Pressure Test
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Fuel Filler Cap Pressure Test

Test fuel filler cap. Test at low pressure of 0.73-1.4 psi (5-10 kPa). Test at high pressure of 2.2-3 psi (15-20 kPa). Replace cap if it does not hold specified pressures.

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