Question about 1992 Chevrolet K1500

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Brake system proportioning valve - 1992 Chevrolet K1500

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  • Bruce Hathcock May 11, 2010

    yes what do you wantto know how to adjust it?

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Disconnect neg on battery-disc brake lines -warning switch harness -remove RWAL control assembly from bracket remove bolts holding dump valve to bracket remove nuts that hold master cylinder & bracket to booster -remove bracket & combination valve assembly

Posted on Oct 05, 2009

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What does the proportioning valve do?


Assuming you're talking about the brake system...
The proportioning valve is on the rear brakes only when the vehicle has rear Drum Brakes.
What it does is limits the brake line pressure to the rear brakes during normal stopping. This way the rear brakes don't lock up and cause the vehicle to fish tail or spin.
When you press the brakes harder than normal, the proportioning valve opens more to allow more line pressure so you're able to stop faster.

Jul 10, 2014 | 1983 Jeep CJ7

1 Answer

Proportioning valves in down position


Did you open brake system lines? If you did they need power bled. If not sometime proportions do go bad.

Jul 13, 2013 | 1999 Pontiac Sunfire

1 Answer

Brake proportioning valve


H Colin, The brake proportioning valve adjust the amount of effort required for maximum efficiency with different loads in the vehicle. The brakes in most vehicles are proportioned for approximately 60% front brakes and forty percent rear. The valve makes small adjustments to braking between front and rear. Regards john

Jun 16, 2013 | Ford Taurus Cars & Trucks

1 Answer

1975 gm pick-up need to bleed the proportional valve


All bleeding is done at each caliper and wheel cylinder. The proportioning valve has no bleeder. The proportioning valve makes the front brakes engage before the rears do to prevent the rear brakes from causing a sideways skid.

Jul 21, 2011 | Chevrolet G10 Cars & Trucks

2 Answers

What is a load proportioning valve


A load proportioning valve is a valve that is used in the brake system that uses an arm attached to the suspension in the rear and as the vehicle is loaded, the arm allows the valve to allow more brake fluid pressure to flow through to even the braking and cause the vehicle to stop more effectively even when there is more weight in the back. Usually used on pick ups.

Aug 14, 2010 | 1998 Toyota Corolla

1 Answer

Villager GE 95 liquid escape in a brake system


It is a brake load sensoing valve that applies more pressure to the rear brakes as you load the vehicle. It is $375 from tascafordparts.com. Get one from the junk yard or just bypass it.

usually just the lines are leaking and can be replaced.
Valve, Brake Load Sensor Proportioning The Villager has a brake load sensor proportioning valve (2B547) that is mounted on the vehicle frame and connected to the rear axle housing (4010) . When the vehicle is unloaded, the brake load sensor proportioning valve closes and partially reduces hydraulic pressure to the rear wheel cylinders (2261) . As the vehicle is loaded, the weight presses down the back end of the vehicle on the rear springs (5560) . This activates the brake load sensor proportioning valve which opens and supplies more hydraulic pressure to the rear wheel cylinders . When the vehicle is fully loaded, the brake load sensor proportioning valve is fully open and provides full hydraulic pressure to the rear wheel cylinders .
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Jun 26, 2010 | 1995 Mercury Villager

1 Answer

The ABS/proportioning valve is not working.


these trucks need a seperate bleed procedure for ABS you need a scanner to put it into this bleed mode,hope this helps if not get back to me and we'll go from there. please rate my fix as i strive to be the best

May 19, 2009 | 1997 Chevrolet Blazer

1 Answer

84 Nissan 720 rear brake lock-up


Was the proportion valve and mater cylinder replaced? The problem most likely is a bad proportion valve it doesn't allow the fluid to return to the master and therefore stays in the system and locks-up the brakes.

Dec 10, 2008 | 1984 Nissan Pickup

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