GM Service Manual Online
For 1990-2009 cars only

POWERMASTER PUMP FLUID LEVEL CHECKING PROCEDURE

VEHICLES AFFECTED: 1985 Regal 'T' Type Models Assembled at Plant VIN Code P (SFI Turbo Engines) ----------------------------------------------

A recent review of fluid checking procedures used by dealers, plus evaluation of Powermaster assemblies returned on the exchange program (refer to Dealer Bulletin 85-5-107 has indicated that the pump reservoirs have been overfilled with brake fluld by Dealer technicians.

To properly check the pump reservoir fluid level, the following procedure must be used:

1. Turn iginition switch off.

2. Apply medium force to the brake pedal ten (10) times.

Step 2 is required to allow the brake fluid in the accumulator to return to the reservoir prior to checking for correct level.

3. Clean reservoir cover of all dirt.

4. Remove reservoir cover and check fluid level. Refer to illustration.

a. Fluid level in both sides of reservoir should be between the maximum and minimum indicator marks.

b. If fluid level is low, fill to 'full' mark(s) with only clean new brake fluid meeting DOT 3 specifications.

A synopsis of the above checking procedure is located on the Powermaster reservoir cover. Detailed bleed and fill procedures for the Powermaster are listed in Section 5D4 of the 1985 Buick Chassis Service Manual.


Object Number: 76892  Size: FS

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.