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Home >> Jeep >> 1985 >> Pickup J20 >> Repair and Diagnosis >> Engine Mechanical >> Engine Cooling Fan >> Cooling System Specifications >> Pressure Cap

Pressure Cap

All models use a 14 psi (1.0kg/cm2 ) pressure cap. Test cap at 12-15 psi (.8-1.0 kg/cm2 ) for 30 seconds or more.



All models use 13 psi (.9 kg/cm2 ) pressure cap which should be tested at 10-14 psi (.7-1.0 kg/cm2 ).

If wear or damage exists, water pump unit replacement is recommended. Do not attempt to overhaul or repair pump.