Dodge W300 Proportioning / Combination Valve Replacement at your home or office.

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Proportioning / Combination Valve Replacement Service

How much does a Proportioning / Combination Valve Replacement cost?

On average, the cost for a Dodge W300 Proportioning / Combination Valve Replacement is $349 with $245 for parts and $104 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1975 Dodge W300V8-5.2LService typeProportioning / Combination Valve ReplacementEstimate$615.67Shop/Dealer Price$748.97 - $1124.10
1976 Dodge W300V8-5.9LService typeProportioning / Combination Valve ReplacementEstimate$593.67Shop/Dealer Price$726.99 - $1102.14
1980 Dodge W300V8-5.9LService typeProportioning / Combination Valve ReplacementEstimate$593.67Shop/Dealer Price$726.98 - $1102.13
1976 Dodge W300V8-5.2LService typeProportioning / Combination Valve ReplacementEstimate$593.67Shop/Dealer Price$726.96 - $1102.09
1975 Dodge W300V8-5.9LService typeProportioning / Combination Valve ReplacementEstimate$593.67Shop/Dealer Price$727.00 - $1102.16
1977 Dodge W300V8-5.9LService typeProportioning / Combination Valve ReplacementEstimate$593.67Shop/Dealer Price$726.98 - $1102.13
1976 Dodge W300L6-3.7LService typeProportioning / Combination Valve ReplacementEstimate$599.17Shop/Dealer Price$732.33 - $1107.37
1978 Dodge W300V8-7.2LService typeProportioning / Combination Valve ReplacementEstimate$1158.23Shop/Dealer Price$1431.57 - $2226.21
Show example Dodge W300 Proportioning / Combination Valve Replacement prices

What is the Proportioning / Combination Valve all about?

Your braking system relies on hydraulic pressure to operate. When you depress the brake pedal, brake fluid is pushed through the system to the wheels. Fluid pressure is responsible for actuating both disc brake calipers, as well as drum brakes. However, there are numerous components in line between the brake pedal and the brakes themselves, including the combination valve.

The combination valve is responsible for metering fluid to disc brakes, as well as fulfilling tasks done by both the pressure differential switch and proportioning valve (which is responsible for reducing the fluid pressure in the lines leading to the rear drum brakes). This is necessary because of how brakes work in terms of lockup – the more weight there is on a wheel, the more force can be applied without locking up the brakes. In rear drum brakes, the weight on the wheel is comparatively small (the weight of the engine on the front wheels is considerable).

Keep in mind:

  • In modern cars that employ combination valves, replacing the entire valve body is necessary if the proportioning valve fails.
  • There is no way to check operation on this type of valve unless it has failed completely.
  • The valve may have failed due to many reasons, including debris in the brake fluid.

How it's done:

  • The defective proportioning combination valve brake lines are disconnected
  • The defective proportioning combination valve is removed from the vehicle
  • The new proportioning combination valve is installed and the brake lines are connected to valve
  • The brake system is bled and purged of air in the system and the brake fluid is refilled
  • The vehicle is road tested for proper brake operation

Our recommendation:

Follow your automaker’s recommendations on brake system service to ensure that the fluid remains in good condition and free of debris. Have your braking system maintained by our expert mechanics to ensure that any potential problems are caught as soon as possible. Driving with a failing proportioning valve puts you at increased risk.

What common symptoms indicate you may need to replace the Proportioning / Combination Valve?

  • Rear brakes lock up easily, particularly on wet pavement

How important is this service?

While it is still possible to drive with a failed or failing proportioning valve, it’s not recommended because it decreases your safety while increasing the risk of being involved in an accident because your rear brakes lock up under even light loads. Have the entire combination valve assembly replaced immediately.

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Oscar

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Oscar
24 years of experience
Dodge Ram 1500 V8-5.2L - Proportioning / Combination Valve - Columbia, Maryland
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Dodge Grand Caravan V6-3.3L - Ally Pre-purchase Car Inspection - Salt Lake City, Utah
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30 years of experience
Dodge Ram 1500 V6-3.7L - Car is not starting - Delray Beach, Florida
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21 years of experience
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21 years of experience
Dodge Ram 1500 V6-3.7L - Water Pump - Smyrna, Georgia
Richard is very patient, very knowledgeable of my make and model of my vehicle gave me very good insights for my make and model vehicle.

Excellent Rating

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Rating Summary
8,206
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148
8,206
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148
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