Safari Van M V6-262 4.3L (1985)
FIGURE 1 - COMBINATION VALVE
SERVICE PROCEDURE:
1987 Model 2.5L TBI and 4.3L TBI engines
Important:
Care must be taken to prevent brake fluid from contacting any painted surface.
Always ensure that the brake system is operational after performing brake work and before returning the vehicle to the customer Replacement of the
combination valve (Figure No. 1).
1.
Disconnect negative battery cable.
2.
Disconnect the four brake lines at the combination valve.
3.
Disconnect electrical harness at the combination valve.
4.
Disconnect combination valve at bracket on the brake booster and discard valve.
5.
Install new combination valve (P/N 15571205).
6.
Reverse above procedure for reinstallation and tighten bracket nuts to 50 N-m (37 ft.lbs.).
7.
Reinstall brake lines and torque nuts to 25 N-m (18 ft.lbs.).
8.
Bleed brakes (Refer to Safari/Astro Service Manual, Pages 5-5 and 5-6).
Parts are currently available from GMSPO.
PARTS LIST
1.
Combination Valve (1) P/N 15571205
2.
Wheel Cylinders (2) P/N 18004888
3.
Brake Shoe Kit (1) P/N 12321427
4.
Link Pin Kit (2) P/N 5464748
5.
Brake Fluid DOT 3 P/N 1052535
(as required)
or equivalent
6.
Label (1985 4.3L Engine) (1) P/N 10066488
7.
PROM for 1986 4.3L P/N 16068877 Federal engine
8.
PROM for 1986 4.3L P/N 16068926 California engine
