Contamination Check

NOTE: Brake fluid contaminated with a hydrocarbon/mineral based fluid (such as power steering or transmission fluid) can be detected by an obvious swelling of the master cylinder cap gasket.

WARNING: If the swollen brake master cylinder gasket condition is present, all brake system rubber parts must be replaced. All components containing rubber parts must be overhauled or replaced. All brake tubes must be thoroughly flushed with brake fluid before the vehicle goes back into service. Contaminated and swollen parts can lead to brake failure.

If the system is contaminated, replace/rebuild the following components;
^ Front and rear calipers.
^ Front and rear brake hoses.
^ Brake pressure control valves.
^ The brake master cylinder. The brake master cylinder is serviced as an assembly. Do not, under any circumstances disassemble the brake master cylinder and return it to service on a vehicle.