Range Rover (LH) V8-3.5L (1987)
13. Before refitting the tank remove the breather hose attached to the top of the filler neck, identify filler neck to breather hose end to aid reassembly.
Vigorously shake the hose and listen for valve ball movement; no sound from the valve-replace the hose assembly.
REFIT
1. Refit the expansion tank ensuring that all hose and pipe connections are secure and that all hose clamps are securely tightened.