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ive had a brake problem since day 1 , thought it was a sticking caliper , nope , changed them both and the pads still die out quick (drivers side front) i changed the brake hose and master cylinder , still doing the same thing , .... i heard it could be a proportioning vavle or something like that , anyone know ?
 

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EspizTrep said:
ive had a brake problem since day 1 , thought it was a sticking caliper , nope , changed them both and the pads still die out quick (drivers side front) i changed the brake hose and master cylinder , still doing the same thing , .... i heard it could be a proportioning vavle or something like that , anyone know ?
Seems to me like it may be the valve, here's some info on the valve:

Proportioning Valve

REMOVAL & INSTALLATION

See Figure 1


Fig. 1: The valve is attached to the frame rail below the master cylinder



LH platform vehicles not equipped with Antilock Brakes, have a proportioning hydraulic system control valve in the brake hydraulic system. The valve is attached to the frame rail below the master cylinder. The proportioning valve balances front to rear braking by controlling at a given ratio, the increase in rear system hydraulic pressure above a preset level. Under light pedal application, the valve allows full hydraulic pressure to the rear brakes.

There is only one valve assembly in each vehicle which is not equipped with Antilock Brakes. During any service procedures, identify the valve assembly by part number.

The hydraulic brake system on non-ABS vehicles is split diagonally. The left front and right rear brake are part of one system. The right front and left rear are part of another. When removing and installing a proportioning valve, correct brake line identification and placement is most important. Both systems are routed through but are hydraulically separated by the proportioning valve. Since the brake systems are split diagonally, the vehicle will retain 50% of its stopping capability in the event of a failure in either half. To remove the proportioning valve, use the following procedure.

Disconnect the negative battery cable.

The proportioning valve is located below the master cylinder mounted to the frame rail.

Tag and disconnect the brake lines from the valve. Be sure to plug the brake lines so that the hydraulic system does not become contaminated with dirt or moisture.

Remove the proportioning valve from the engine compartment.

To install:

Verify correct replacement part number, if installing replacement valve. Install the proportioning valve to the frame rail. Tighten the mounting bolts.

Reconnect the brake lines to the valve. Be sure that the fittings are connected to their correct valve openings. Tighten the brake line fittings to 13 ft. lbs. (17 Nm).

Add brake fluid reservoir to the MAX level, using DOT 3 type brake fluid only. Bleed the brake system.

Test drive the vehicle, with caution, to ensure proper brake operation.
 

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It's $192 at the dealer. Hope you can get it somewhere else. I went and look too, and I can't find one at the local auto parts, Napa, Ect.
 

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Jack your car. If the driver front wheel doesn't turn free it could be a bad proportionnal valve that stick. Check the brake fluid if is dark-brown it time to change it.
 
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