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Pressure Cap

On "P" Series Motor Homes and some "G" Series Vans with the VIN J 6.2L diesel engine, a deaeration tank is used instead of a coolant recovery tank.

Deaeration tank uses a 9 psi (.6 kg/cm2 ) pressure cap. All other models use a 15 psi (1.0 kg/cm2 ) pressure cap which should be tested at 14-17 psi (.9-1.2 kg/cm2 ).

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