B2300 Regular Cab 2WD L4-2.3L VIN A (1997)
Hydraulic Control Assembly - Antilock Brakes: Service and Repair
Location Of Hydraulic Unit
1. Disconnect and plug the two brake lines connected to the hydraulic unit.
2. Disconnect the hydraulic unit connector.
3. Remove the screw retaining the unit to frame rail and remove the hydraulic unit.
4. Install in the reverse order of removal, noting the following:
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It is not necessary to energize the hydraulic unit electronically to bleed the rear brakes.
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Before connecting the RABS hydraulic unit connector, fill the unit side connector with Dialectic grease.
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Connect the brake pipes to the unit and tighten to 15-20 Nm (11-14 ft. lbs.).
CAUTION: Do not over tighten the fittings.
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Position the hydraulic unit on the frame and install the bolts tightening to 20-25 Nm (14-19 ft. lbs.)
5. Bleed brake system.
