Preliminary Checks

Make following checks and repairs, before performing any tests on Hydro-Boost system:

Fluid levels in master cylinder & power steering pump.
Power steering pump drive belt.
Power steering hoses for leaks or kinks.
Air in brake fluid or power steering fluid.
Engine idle speed.
Steering pump pressure.

NOTE: If problem cannot be found in preliminary steps, make following tests. If unit is found to be operating properly, check areas of brake system that might cause condition. See HYDRO-BOOST TROUBLE SHOOTING .